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Failed to build PlaygroundTester with Swift 5.9 for macOS (SPM).

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Build Log

public struct TestMethodView: View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:14:9: error: 'Spacer' is only available in macOS 10.15 or newer
        Spacer()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:14:9: note: add 'if #available' version check
        Spacer()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:10:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:5:15: note: add @available attribute to enclosing struct
public struct TestMethodView: View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:17:11: error: 'Image' is only available in macOS 10.15 or newer
          Image(systemName: "checkmark.circle.fill")
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:17:11: note: add 'if #available' version check
          Image(systemName: "checkmark.circle.fill")
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:10:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:5:15: note: add @available attribute to enclosing struct
public struct TestMethodView: View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:17:11: error: 'init(systemName:)' is only available in macOS 11.0 or newer
          Image(systemName: "checkmark.circle.fill")
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:17:11: note: add 'if #available' version check
          Image(systemName: "checkmark.circle.fill")
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:10:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:5:15: note: add @available attribute to enclosing struct
public struct TestMethodView: View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:18:14: error: 'foregroundColor' is only available in macOS 10.15 or newer
            .foregroundColor(.green)
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:18:14: note: add 'if #available' version check
            .foregroundColor(.green)
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:10:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:5:15: note: add @available attribute to enclosing struct
public struct TestMethodView: View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:18:31: error: 'green' is only available in macOS 10.15 or newer
            .foregroundColor(.green)
                              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:18:31: note: add 'if #available' version check
            .foregroundColor(.green)
                              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:10:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:5:15: note: add @available attribute to enclosing struct
public struct TestMethodView: View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:17:11: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
          Image(systemName: "checkmark.circle.fill")
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:17:11: note: add 'if #available' version check
          Image(systemName: "checkmark.circle.fill")
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:10:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:5:15: note: add @available attribute to enclosing struct
public struct TestMethodView: View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:21:11: error: 'Image' is only available in macOS 10.15 or newer
          Image(systemName: "xmark.octagon.fill")
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:21:11: note: add 'if #available' version check
          Image(systemName: "xmark.octagon.fill")
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:10:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:5:15: note: add @available attribute to enclosing struct
public struct TestMethodView: View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:21:11: error: 'init(systemName:)' is only available in macOS 11.0 or newer
          Image(systemName: "xmark.octagon.fill")
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:21:11: note: add 'if #available' version check
          Image(systemName: "xmark.octagon.fill")
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:10:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:5:15: note: add @available attribute to enclosing struct
public struct TestMethodView: View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:22:14: error: 'foregroundColor' is only available in macOS 10.15 or newer
            .foregroundColor(.red)
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:22:14: note: add 'if #available' version check
            .foregroundColor(.red)
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:10:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:5:15: note: add @available attribute to enclosing struct
public struct TestMethodView: View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:22:31: error: 'red' is only available in macOS 10.15 or newer
            .foregroundColor(.red)
                              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:22:31: note: add 'if #available' version check
            .foregroundColor(.red)
                              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:10:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:5:15: note: add @available attribute to enclosing struct
public struct TestMethodView: View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:21:11: error: 'buildEither(second:)' is only available in macOS 10.15 or newer
          Image(systemName: "xmark.octagon.fill")
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:21:11: note: add 'if #available' version check
          Image(systemName: "xmark.octagon.fill")
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:10:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:5:15: note: add @available attribute to enclosing struct
public struct TestMethodView: View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:10:4: error: 'Binding' is only available in macOS 10.15 or newer
  @Binding private(set) var failuresOnly: Bool
   ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:18: error: 'View' is only available in macOS 10.15 or newer
  var body: some View {
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:14:5: error: 'List' is only available in macOS 10.15 or newer
    List(results) { method in
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:14:5: note: add 'if #available' version check
    List(results) { method in
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:14:5: error: 'init(_:rowContent:)' is only available in macOS 10.15 or newer
    List(results) { method in
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:14:5: note: add 'if #available' version check
    List(results) { method in
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:15:34: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
      if method.result.isSuccess {
                                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:18:9: error: 'NavigationLink' is only available in macOS 10.15 or newer
        NavigationLink {
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:17:14: error: 'buildEither(second:)' is only available in macOS 10.15 or newer
      } else {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:14:19: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
    List(results) { method in
                  ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:24:7: error: 'navigationTitle' is only available in macOS 11.0 or newer
    }.navigationTitle(title)
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:25:6: error: 'toolbar(content:)' is only available in macOS 11.0 or newer
    .toolbar {
     ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:25:6: note: add 'if #available' version check
    .toolbar {
     ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:25:14: warning: conformance of 'Optional<Wrapped>' to 'View' is only available in macOS 10.15 or newer
    .toolbar {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:25:14: note: add 'if #available' version check
    .toolbar {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:26:7: warning: conformance of 'Optional<Wrapped>' to 'View' is only available in macOS 10.15 or newer
      ToolbarItem(placement: .navigationBarTrailing) {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:26:7: note: add 'if #available' version check
      ToolbarItem(placement: .navigationBarTrailing) {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:26:7: error: 'ToolbarItem' is only available in macOS 11.0 or newer
      ToolbarItem(placement: .navigationBarTrailing) {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:26:7: note: add 'if #available' version check
      ToolbarItem(placement: .navigationBarTrailing) {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:26:7: error: 'init(placement:content:)' is only available in macOS 11.0 or newer
      ToolbarItem(placement: .navigationBarTrailing) {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:26:7: note: add 'if #available' version check
      ToolbarItem(placement: .navigationBarTrailing) {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:26:31: error: 'navigationBarTrailing' is unavailable in macOS
      ToolbarItem(placement: .navigationBarTrailing) {
                              ^~~~~~~~~~~~~~~~~~~~~
SwiftUI.ToolbarItemPlacement:49:23: note: 'navigationBarTrailing' has been explicitly marked unavailable here
    public static let navigationBarTrailing: ToolbarItemPlacement
                      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:27:37: error: 'buildIf' is only available in macOS 10.15 or newer
        if results.isEmpty == false {
                                    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:27:37: note: add 'if #available' version check
        if results.isEmpty == false {
                                    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:29:9: error: 'buildIf' is only available in macOS 10.15 or newer
        }
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:29:9: note: add 'if #available' version check
        }
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:26:54: warning: conformance of 'Optional<Wrapped>' to 'View' is only available in macOS 10.15 or newer
      ToolbarItem(placement: .navigationBarTrailing) {
                                                     ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:26:54: note: add 'if #available' version check
      ToolbarItem(placement: .navigationBarTrailing) {
                                                     ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:25:14: warning: conformance of 'Optional<Wrapped>' to 'View' is only available in macOS 10.15 or newer
    .toolbar {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:25:14: note: add 'if #available' version check
    .toolbar {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
[10/15] Compiling PlaygroundTester TestingView.swift
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:7:4: error: 'StateObject' is only available in macOS 11.0 or newer
  @StateObject var viewModel = TestViewViewModel()
   ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:9:4: error: 'State' is only available in macOS 10.15 or newer
  @State var showingResults = false
   ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:11:25: error: 'View' is only available in macOS 10.15 or newer
  public var body: some View {
                        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:11:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:33: error: 'View' is only available in macOS 10.15 or newer
  private var testingView: some View {
                                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:12:5: warning: conformance of 'Group<Content>' to 'View' is only available in macOS 10.15 or newer
    Group {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:12:5: note: add 'if #available' version check
    Group {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:11:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:12:5: error: 'Group' is only available in macOS 10.15 or newer
    Group {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:12:5: note: add 'if #available' version check
    Group {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:11:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:12:5: error: 'init(content:)' is only available in macOS 10.15 or newer
    Group {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:12:5: note: add 'if #available' version check
    Group {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:11:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:13:30: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
      if self.showingResults {
                             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:13:30: note: add 'if #available' version check
      if self.showingResults {
                             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:11:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:15:14: error: 'buildEither(second:)' is only available in macOS 10.15 or newer
      } else {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:15:14: note: add 'if #available' version check
      } else {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:11:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:12:11: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
    Group {
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:12:11: note: add 'if #available' version check
    Group {
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:11:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:22:5: error: 'VStack' is only available in macOS 10.15 or newer
    VStack {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:22:5: note: add 'if #available' version check
    VStack {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:22:5: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
    VStack {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:22:5: note: add 'if #available' version check
    VStack {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:25:9: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
        Text("Looking for tests...")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:25:9: note: add 'if #available' version check
        Text("Looking for tests...")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:25:9: error: 'Text' is only available in macOS 10.15 or newer
        Text("Looking for tests...")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:25:9: note: add 'if #available' version check
        Text("Looking for tests...")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:26:9: error: 'ProgressView' is only available in macOS 11.0 or newer
        ProgressView().progressViewStyle(.circular)
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:26:9: note: add 'if #available' version check
        ProgressView().progressViewStyle(.circular)
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:26:9: error: 'init()' is only available in macOS 11.0 or newer
        ProgressView().progressViewStyle(.circular)
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:26:9: note: add 'if #available' version check
        ProgressView().progressViewStyle(.circular)
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:26:24: error: 'progressViewStyle' is only available in macOS 11.0 or newer
        ProgressView().progressViewStyle(.circular)
                       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:26:24: note: add 'if #available' version check
        ProgressView().progressViewStyle(.circular)
                       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:26:43: error: 'circular' is only available in macOS 11.0 or newer
        ProgressView().progressViewStyle(.circular)
                                          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:26:43: note: add 'if #available' version check
        ProgressView().progressViewStyle(.circular)
                                          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:25:9: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
        Text("Looking for tests...")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:25:9: note: add 'if #available' version check
        Text("Looking for tests...")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:25:9: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
        Text("Looking for tests...")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:25:9: note: add 'if #available' version check
        Text("Looking for tests...")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:29:9: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
        Text("Found \(self.viewModel.totalClasses) test classes and \(self.viewModel.totalTests) methods.")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:29:9: note: add 'if #available' version check
        Text("Found \(self.viewModel.totalClasses) test classes and \(self.viewModel.totalTests) methods.")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:29:9: error: 'Text' is only available in macOS 10.15 or newer
        Text("Found \(self.viewModel.totalClasses) test classes and \(self.viewModel.totalTests) methods.")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:29:9: note: add 'if #available' version check
        Text("Found \(self.viewModel.totalClasses) test classes and \(self.viewModel.totalTests) methods.")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:30:9: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
        Text("Executing....")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:30:9: note: add 'if #available' version check
        Text("Executing....")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:30:9: error: 'Text' is only available in macOS 10.15 or newer
        Text("Executing....")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:30:9: note: add 'if #available' version check
        Text("Executing....")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:31:9: error: 'ProgressView' is only available in macOS 11.0 or newer
        ProgressView().progressViewStyle(.circular)
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:31:9: note: add 'if #available' version check
        ProgressView().progressViewStyle(.circular)
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:31:9: error: 'init()' is only available in macOS 11.0 or newer
        ProgressView().progressViewStyle(.circular)
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:31:9: note: add 'if #available' version check
        ProgressView().progressViewStyle(.circular)
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:31:24: error: 'progressViewStyle' is only available in macOS 11.0 or newer
        ProgressView().progressViewStyle(.circular)
                       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:31:24: note: add 'if #available' version check
        ProgressView().progressViewStyle(.circular)
                       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:31:43: error: 'circular' is only available in macOS 11.0 or newer
        ProgressView().progressViewStyle(.circular)
                                          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:31:43: note: add 'if #available' version check
        ProgressView().progressViewStyle(.circular)
                                          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:32:9: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
        Text("\(finished) / \(self.viewModel.totalTests)")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:32:9: note: add 'if #available' version check
        Text("\(finished) / \(self.viewModel.totalTests)")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:32:9: error: 'Text' is only available in macOS 10.15 or newer
        Text("\(finished) / \(self.viewModel.totalTests)")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:32:9: note: add 'if #available' version check
        Text("\(finished) / \(self.viewModel.totalTests)")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:33:9: error: 'HStack' is only available in macOS 10.15 or newer
        HStack {
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:33:9: note: add 'if #available' version check
        HStack {
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:35:13: error: 'Image' is only available in macOS 10.15 or newer
            Image(systemName: "xmark.octagon.fill")
            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:35:13: note: add 'if #available' version check
            Image(systemName: "xmark.octagon.fill")
            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:35:13: error: 'init(systemName:)' is only available in macOS 11.0 or newer
            Image(systemName: "xmark.octagon.fill")
            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:35:13: note: add 'if #available' version check
            Image(systemName: "xmark.octagon.fill")
            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:36:16: error: 'foregroundColor' is only available in macOS 10.15 or newer
              .foregroundColor(.red)
               ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:36:16: note: add 'if #available' version check
              .foregroundColor(.red)
               ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:36:33: error: 'red' is only available in macOS 10.15 or newer
              .foregroundColor(.red)
                                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:36:33: note: add 'if #available' version check
              .foregroundColor(.red)
                                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:37:13: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
            Text("\(failure)")
            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:37:13: note: add 'if #available' version check
            Text("\(failure)")
            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:37:13: error: 'Text' is only available in macOS 10.15 or newer
            Text("\(failure)")
            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:37:13: note: add 'if #available' version check
            Text("\(failure)")
            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:34:26: error: 'buildIf' is only available in macOS 10.15 or newer
          if failure > 0 {
                         ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:34:26: note: add 'if #available' version check
          if failure > 0 {
                         ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:38:11: error: 'buildIf' is only available in macOS 10.15 or newer
          }
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:38:11: note: add 'if #available' version check
          }
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:40:13: error: 'Image' is only available in macOS 10.15 or newer
            Image(systemName: "checkmark.circle.fill")
            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:40:13: note: add 'if #available' version check
            Image(systemName: "checkmark.circle.fill")
            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:40:13: error: 'init(systemName:)' is only available in macOS 11.0 or newer
            Image(systemName: "checkmark.circle.fill")
            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:40:13: note: add 'if #available' version check
            Image(systemName: "checkmark.circle.fill")
            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:41:16: error: 'foregroundColor' is only available in macOS 10.15 or newer
              .foregroundColor(.green)
               ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:41:16: note: add 'if #available' version check
              .foregroundColor(.green)
               ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:41:33: error: 'green' is only available in macOS 10.15 or newer
              .foregroundColor(.green)
                                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:41:33: note: add 'if #available' version check
              .foregroundColor(.green)
                                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:42:13: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
            Text("\(success)")
            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:42:13: note: add 'if #available' version check
            Text("\(success)")
            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:42:13: error: 'Text' is only available in macOS 10.15 or newer
            Text("\(success)")
            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:42:13: note: add 'if #available' version check
            Text("\(success)")
            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:39:26: error: 'buildIf' is only available in macOS 10.15 or newer
          if success > 0 {
                         ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:39:26: note: add 'if #available' version check
          if success > 0 {
                         ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:43:11: error: 'buildIf' is only available in macOS 10.15 or newer
          }
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:43:11: note: add 'if #available' version check
          }
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:29:9: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
        Text("Found \(self.viewModel.totalClasses) test classes and \(self.viewModel.totalTests) methods.")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:29:9: note: add 'if #available' version check
        Text("Found \(self.viewModel.totalClasses) test classes and \(self.viewModel.totalTests) methods.")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:29:9: error: 'buildEither(second:)' is only available in macOS 10.15 or newer
        Text("Found \(self.viewModel.totalClasses) test classes and \(self.viewModel.totalTests) methods.")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:29:9: note: add 'if #available' version check
        Text("Found \(self.viewModel.totalClasses) test classes and \(self.viewModel.totalTests) methods.")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:47:9: error: 'Text' is only available in macOS 10.15 or newer
        Text("Done!").onAppear {
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:47:9: note: add 'if #available' version check
        Text("Done!").onAppear {
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:47:23: error: 'onAppear(perform:)' is only available in macOS 10.15 or newer
        Text("Done!").onAppear {
                      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:47:23: note: add 'if #available' version check
        Text("Done!").onAppear {
                      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:48:11: error: setter for 'showingResults' is only available in macOS 10.15 or newer
          self.showingResults = true
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:48:11: note: add 'if #available' version check
          self.showingResults = true
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:47:9: error: 'buildEither(second:)' is only available in macOS 10.15 or newer
        Text("Done!").onAppear {
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:47:9: note: add 'if #available' version check
        Text("Done!").onAppear {
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:22:12: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
    VStack {
           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:22:12: note: add 'if #available' version check
    VStack {
           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:52:6: error: 'onAppear(perform:)' is only available in macOS 10.15 or newer
    .onAppear {
     ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:52:6: note: add 'if #available' version check
    .onAppear {
     ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
error: emit-module command failed with exit code 1 (use -v to see invocation)
[11/15] Emitting module PlaygroundTester
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Interface/PlaygroundTesterView.swift:10:25: error: 'View' is only available in macOS 10.15 or newer
  public var body: some View {
                        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Interface/PlaygroundTesterView.swift:10:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Interface/PlaygroundTesterWrapperView.swift:14:16: error: 'ViewBuilder' is only available in macOS 10.15 or newer
  public init(@ViewBuilder content: () -> Content) {
               ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Interface/PlaygroundTesterWrapperView.swift:14:10: note: add @available attribute to enclosing initializer
  public init(@ViewBuilder content: () -> Content) {
         ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Interface/PlaygroundTesterWrapperView.swift:3:15: note: add @available attribute to enclosing generic struct
public struct PlaygroundTesterWrapperView<Content: View>: View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Interface/PlaygroundTesterWrapperView.swift:18:25: error: 'View' is only available in macOS 10.15 or newer
  public var body: some View {
                        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Interface/PlaygroundTesterWrapperView.swift:18:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Interface/PlaygroundTesterWrapperView.swift:3:15: note: add @available attribute to enclosing generic struct
public struct PlaygroundTesterWrapperView<Content: View>: View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Interface/PlaygroundTesterWrapperView.swift:3:52: error: 'View' is only available in macOS 10.15 or newer
public struct PlaygroundTesterWrapperView<Content: View>: View {
                                                   ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Interface/PlaygroundTesterWrapperView.swift:3:15: note: add @available attribute to enclosing generic struct
public struct PlaygroundTesterWrapperView<Content: View>: View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Interface/ResultsToggleButton.swift:4:4: error: 'Binding' is only available in macOS 10.15 or newer
  @Binding private(set) var isToggled: Bool
   ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Interface/ResultsToggleButton.swift:3:8: note: add @available attribute to enclosing struct
struct ResultsToggleButton: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Interface/ResultsToggleButton.swift:6:18: error: 'View' is only available in macOS 10.15 or newer
  var body: some View {
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Interface/ResultsToggleButton.swift:6:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Interface/ResultsToggleButton.swift:3:8: note: add @available attribute to enclosing struct
struct ResultsToggleButton: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:18: error: 'View' is only available in macOS 10.15 or newer
  var body: some View {
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:10:4: error: 'State' is only available in macOS 10.15 or newer
  @State var showingFullDiff = false
   ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:18: error: 'View' is only available in macOS 10.15 or newer
  var body: some View {
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:43:31: error: 'View' is only available in macOS 10.15 or newer
    static var previews: some View {
                              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:43:16: note: add @available attribute to enclosing static property
    static var previews: some View {
               ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:42:8: note: add @available attribute to enclosing struct
struct AssertionView_Previews: PreviewProvider {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionsView.swift:10:18: error: 'View' is only available in macOS 10.15 or newer
  var body: some View {
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionsView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionsView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:10:25: error: 'View' is only available in macOS 10.15 or newer
  public var body: some View {
                        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:10:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodView.swift:5:15: note: add @available attribute to enclosing struct
public struct TestMethodView: View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:10:4: error: 'Binding' is only available in macOS 10.15 or newer
  @Binding private(set) var failuresOnly: Bool
   ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:18: error: 'View' is only available in macOS 10.15 or newer
  var body: some View {
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestMethodsView.swift:5:8: note: add @available attribute to enclosing struct
struct TestMethodsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestSuiteView.swift:11:25: error: 'View' is only available in macOS 10.15 or newer
  public var body: some View {
                        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestSuiteView.swift:11:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestSuiteView.swift:5:15: note: add @available attribute to enclosing struct
public struct TestSuiteView: View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestSuitesView.swift:10:4: error: 'State' is only available in macOS 10.15 or newer
  @State private(set) var failuresOnly = false
   ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestSuitesView.swift:5:8: note: add @available attribute to enclosing struct
struct TestSuitesView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestSuitesView.swift:12:18: error: 'View' is only available in macOS 10.15 or newer
  var body: some View {
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestSuitesView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestSuitesView.swift:5:8: note: add @available attribute to enclosing struct
struct TestSuitesView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestViewViewModel.swift:25:4: error: 'Published' is only available in macOS 10.15 or newer
  @Published var state: State = .searchingForTests
   ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestViewViewModel.swift:14:13: note: add @available attribute to enclosing class
final class TestViewViewModel: ObservableObject {
            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestViewViewModel.swift:14:32: error: 'ObservableObject' is only available in macOS 10.15 or newer
final class TestViewViewModel: ObservableObject {
                               ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestViewViewModel.swift:14:13: note: add @available attribute to enclosing class
final class TestViewViewModel: ObservableObject {
            ^
<unknown>:0: error: key path value type 'ReferenceWritableKeyPath<TestViewViewModel, TestViewViewModel.State>' cannot be converted to contextual type 'KeyPath<TestViewViewModel, TestViewViewModel.State>'
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:7:4: error: 'StateObject' is only available in macOS 11.0 or newer
  @StateObject var viewModel = TestViewViewModel()
   ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:9:4: error: 'State' is only available in macOS 10.15 or newer
  @State var showingResults = false
   ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:11:25: error: 'View' is only available in macOS 10.15 or newer
  public var body: some View {
                        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:11:14: note: add @available attribute to enclosing property
  public var body: some View {
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:33: error: 'View' is only available in macOS 10.15 or newer
  private var testingView: some View {
                                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:21:15: note: add @available attribute to enclosing property
  private var testingView: some View {
              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/TestingView.swift:5:8: note: add @available attribute to enclosing struct
struct TestingView: View {
       ^
[12/15] Compiling PlaygroundTester AssertionSectionView.swift
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:18: error: 'View' is only available in macOS 10.15 or newer
  var body: some View {
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:11:5: warning: conformance of 'Section<Parent, Content, Footer>' to 'View' is only available in macOS 10.15 or newer
    Section {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:11:5: note: add 'if #available' version check
    Section {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:11:5: error: 'Section' is only available in macOS 10.15 or newer
    Section {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:11:5: note: add 'if #available' version check
    Section {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:11:5: error: 'init(content:header:)' is only available in macOS 10.15 or newer
    Section {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:11:5: note: add 'if #available' version check
    Section {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:12:7: error: 'ForEach' is only available in macOS 10.15 or newer
      ForEach(assertions) { assertion in
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:12:7: note: add 'if #available' version check
      ForEach(assertions) { assertion in
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:12:7: error: 'init(_:content:)' is only available in macOS 10.15 or newer
      ForEach(assertions) { assertion in
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:12:7: note: add 'if #available' version check
      ForEach(assertions) { assertion in
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:13:45: error: 'cornerRadius(_:antialiased:)' is only available in macOS 10.15 or newer
        AssertionView(assertion: assertion).cornerRadius(5)
                                            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:13:45: note: add 'if #available' version check
        AssertionView(assertion: assertion).cornerRadius(5)
                                            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:15:8: error: 'padding' is only available in macOS 10.15 or newer
      .padding([.leading, .trailing], 5)
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:15:8: note: add 'if #available' version check
      .padding([.leading, .trailing], 5)
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:17:7: error: 'HStack' is only available in macOS 10.15 or newer
      HStack {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:17:7: note: add 'if #available' version check
      HStack {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:20:12: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
          .foregroundColor(.secondary)
           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:20:12: note: add 'if #available' version check
          .foregroundColor(.secondary)
           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:18:9: error: 'Text' is only available in macOS 10.15 or newer
        Text(sectionName.uppercased())
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:18:9: note: add 'if #available' version check
        Text(sectionName.uppercased())
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:19:12: error: 'font' is only available in macOS 10.15 or newer
          .font(.caption)
           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:19:12: note: add 'if #available' version check
          .font(.caption)
           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:19:18: error: 'caption' is only available in macOS 10.15 or newer
          .font(.caption)
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:19:18: note: add 'if #available' version check
          .font(.caption)
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:20:12: error: 'foregroundColor' is only available in macOS 10.15 or newer
          .foregroundColor(.secondary)
           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:20:12: note: add 'if #available' version check
          .foregroundColor(.secondary)
           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:20:29: error: 'secondary' is only available in macOS 10.15 or newer
          .foregroundColor(.secondary)
                            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:20:29: note: add 'if #available' version check
          .foregroundColor(.secondary)
                            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:21:9: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
        Spacer()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:21:9: note: add 'if #available' version check
        Spacer()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:21:9: error: 'Spacer' is only available in macOS 10.15 or newer
        Spacer()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:21:9: note: add 'if #available' version check
        Spacer()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:23:8: error: 'padding' is only available in macOS 10.15 or newer
      .padding(.init(top: 5, leading: 5, bottom: -5, trailing: 5))
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:23:8: note: add 'if #available' version check
      .padding(.init(top: 5, leading: 5, bottom: -5, trailing: 5))
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:10:4: error: 'State' is only available in macOS 10.15 or newer
  @State var showingFullDiff = false
   ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:18: error: 'View' is only available in macOS 10.15 or newer
  var body: some View {
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:43:31: error: 'View' is only available in macOS 10.15 or newer
    static var previews: some View {
                              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:43:16: note: add @available attribute to enclosing static property
    static var previews: some View {
               ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:42:8: note: add @available attribute to enclosing struct
struct AssertionView_Previews: PreviewProvider {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:13:5: error: 'VStack' is only available in macOS 10.15 or newer
    VStack(alignment: .leading) {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:13:5: note: add 'if #available' version check
    VStack(alignment: .leading) {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:13:24: error: 'leading' is only available in macOS 10.15 or newer
    VStack(alignment: .leading) {
                       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:13:33: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
    VStack(alignment: .leading) {
                                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:14:7: error: 'HStack' is only available in macOS 10.15 or newer
      HStack {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:15:9: error: 'Text' is only available in macOS 10.15 or newer
        Text(assertion.message).lineLimit(nil)
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:15:33: error: 'lineLimit' is only available in macOS 10.15 or newer
        Text(assertion.message).lineLimit(nil)
                                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:16:9: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
        Spacer()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:16:9: error: 'Spacer' is only available in macOS 10.15 or newer
        Spacer()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:17:9: error: 'Image' is only available in macOS 10.15 or newer
        Image(systemName: "chevron.down")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:17:9: error: 'init(systemName:)' is only available in macOS 11.0 or newer
        Image(systemName: "chevron.down")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:18:12: error: 'rotationEffect(_:anchor:)' is only available in macOS 10.15 or newer
          .rotationEffect(Angle.degrees(self.showingFullDiff ? 180.0 : 0.0))
           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:18:27: error: 'Angle' is only available in macOS 10.15 or newer
          .rotationEffect(Angle.degrees(self.showingFullDiff ? 180.0 : 0.0))
                          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:22:9: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
        ScrollView([.horizontal]) {
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:22:9: error: 'ScrollView' is only available in macOS 10.15 or newer
        ScrollView([.horizontal]) {
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:22:9: error: 'init(_:content:)' is only available in macOS 10.15 or newer
        ScrollView([.horizontal]) {
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:24:14: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
            .font(.callout.monospaced())
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:23:11: error: 'Text' is only available in macOS 10.15 or newer
          Text(assertion.fullDiff)
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:24:14: error: 'font' is only available in macOS 10.15 or newer
            .font(.callout.monospaced())
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:24:20: error: 'callout' is only available in macOS 10.15 or newer
            .font(.callout.monospaced())
                   ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:24:28: error: 'monospaced()' is only available in macOS 12.0 or newer
            .font(.callout.monospaced())
                           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:22:35: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
        ScrollView([.horizontal]) {
                                  ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:21:31: error: 'buildIf' is only available in macOS 10.15 or newer
      if self.showingFullDiff {
                              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:21:31: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
      if self.showingFullDiff {
                              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:26:7: error: 'buildIf' is only available in macOS 10.15 or newer
      }
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:28:6: error: 'padding' is only available in macOS 10.15 or newer
    .padding(.init(
     ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:33:6: error: 'background(_:ignoresSafeAreaEdges:)' is only available in macOS 12.0 or newer
    .background(.background)
     ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:33:18: error: 'background' is only available in macOS 11.0 or newer
    .background(.background)
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:34:6: error: 'onTapGesture(count:perform:)' is only available in macOS 10.15 or newer
    .onTapGesture {
     ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:34:6: note: add 'if #available' version check
    .onTapGesture {
     ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:35:7: error: 'withAnimation' is only available in macOS 10.15 or newer
      withAnimation {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:35:7: note: add 'if #available' version check
      withAnimation {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:36:9: error: cannot pass as inout because setter for 'showingFullDiff' is only available in macOS 10.15 or newer
        self.showingFullDiff.toggle()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:36:9: note: add 'if #available' version check
        self.showingFullDiff.toggle()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
[13/15] Compiling PlaygroundTester AssertionView.swift
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:18: error: 'View' is only available in macOS 10.15 or newer
  var body: some View {
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:11:5: warning: conformance of 'Section<Parent, Content, Footer>' to 'View' is only available in macOS 10.15 or newer
    Section {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:11:5: note: add 'if #available' version check
    Section {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:11:5: error: 'Section' is only available in macOS 10.15 or newer
    Section {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:11:5: note: add 'if #available' version check
    Section {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:11:5: error: 'init(content:header:)' is only available in macOS 10.15 or newer
    Section {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:11:5: note: add 'if #available' version check
    Section {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:12:7: error: 'ForEach' is only available in macOS 10.15 or newer
      ForEach(assertions) { assertion in
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:12:7: note: add 'if #available' version check
      ForEach(assertions) { assertion in
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:12:7: error: 'init(_:content:)' is only available in macOS 10.15 or newer
      ForEach(assertions) { assertion in
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:12:7: note: add 'if #available' version check
      ForEach(assertions) { assertion in
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:13:45: error: 'cornerRadius(_:antialiased:)' is only available in macOS 10.15 or newer
        AssertionView(assertion: assertion).cornerRadius(5)
                                            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:13:45: note: add 'if #available' version check
        AssertionView(assertion: assertion).cornerRadius(5)
                                            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:15:8: error: 'padding' is only available in macOS 10.15 or newer
      .padding([.leading, .trailing], 5)
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:15:8: note: add 'if #available' version check
      .padding([.leading, .trailing], 5)
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:17:7: error: 'HStack' is only available in macOS 10.15 or newer
      HStack {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:17:7: note: add 'if #available' version check
      HStack {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:20:12: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
          .foregroundColor(.secondary)
           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:20:12: note: add 'if #available' version check
          .foregroundColor(.secondary)
           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:18:9: error: 'Text' is only available in macOS 10.15 or newer
        Text(sectionName.uppercased())
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:18:9: note: add 'if #available' version check
        Text(sectionName.uppercased())
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:19:12: error: 'font' is only available in macOS 10.15 or newer
          .font(.caption)
           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:19:12: note: add 'if #available' version check
          .font(.caption)
           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:19:18: error: 'caption' is only available in macOS 10.15 or newer
          .font(.caption)
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:19:18: note: add 'if #available' version check
          .font(.caption)
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:20:12: error: 'foregroundColor' is only available in macOS 10.15 or newer
          .foregroundColor(.secondary)
           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:20:12: note: add 'if #available' version check
          .foregroundColor(.secondary)
           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:20:29: error: 'secondary' is only available in macOS 10.15 or newer
          .foregroundColor(.secondary)
                            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:20:29: note: add 'if #available' version check
          .foregroundColor(.secondary)
                            ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:21:9: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
        Spacer()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:21:9: note: add 'if #available' version check
        Spacer()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:21:9: error: 'Spacer' is only available in macOS 10.15 or newer
        Spacer()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:21:9: note: add 'if #available' version check
        Spacer()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:23:8: error: 'padding' is only available in macOS 10.15 or newer
      .padding(.init(top: 5, leading: 5, bottom: -5, trailing: 5))
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:23:8: note: add 'if #available' version check
      .padding(.init(top: 5, leading: 5, bottom: -5, trailing: 5))
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionSectionView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionSectionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:10:4: error: 'State' is only available in macOS 10.15 or newer
  @State var showingFullDiff = false
   ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:18: error: 'View' is only available in macOS 10.15 or newer
  var body: some View {
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:43:31: error: 'View' is only available in macOS 10.15 or newer
    static var previews: some View {
                              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:43:16: note: add @available attribute to enclosing static property
    static var previews: some View {
               ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:42:8: note: add @available attribute to enclosing struct
struct AssertionView_Previews: PreviewProvider {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:13:5: error: 'VStack' is only available in macOS 10.15 or newer
    VStack(alignment: .leading) {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:13:5: note: add 'if #available' version check
    VStack(alignment: .leading) {
    ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:13:24: error: 'leading' is only available in macOS 10.15 or newer
    VStack(alignment: .leading) {
                       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:13:33: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
    VStack(alignment: .leading) {
                                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:14:7: error: 'HStack' is only available in macOS 10.15 or newer
      HStack {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:15:9: error: 'Text' is only available in macOS 10.15 or newer
        Text(assertion.message).lineLimit(nil)
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:15:33: error: 'lineLimit' is only available in macOS 10.15 or newer
        Text(assertion.message).lineLimit(nil)
                                ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:16:9: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
        Spacer()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:16:9: error: 'Spacer' is only available in macOS 10.15 or newer
        Spacer()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:17:9: error: 'Image' is only available in macOS 10.15 or newer
        Image(systemName: "chevron.down")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:17:9: error: 'init(systemName:)' is only available in macOS 11.0 or newer
        Image(systemName: "chevron.down")
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:18:12: error: 'rotationEffect(_:anchor:)' is only available in macOS 10.15 or newer
          .rotationEffect(Angle.degrees(self.showingFullDiff ? 180.0 : 0.0))
           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:18:27: error: 'Angle' is only available in macOS 10.15 or newer
          .rotationEffect(Angle.degrees(self.showingFullDiff ? 180.0 : 0.0))
                          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:22:9: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
        ScrollView([.horizontal]) {
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:22:9: error: 'ScrollView' is only available in macOS 10.15 or newer
        ScrollView([.horizontal]) {
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:22:9: error: 'init(_:content:)' is only available in macOS 10.15 or newer
        ScrollView([.horizontal]) {
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:24:14: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
            .font(.callout.monospaced())
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:23:11: error: 'Text' is only available in macOS 10.15 or newer
          Text(assertion.fullDiff)
          ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:24:14: error: 'font' is only available in macOS 10.15 or newer
            .font(.callout.monospaced())
             ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:24:20: error: 'callout' is only available in macOS 10.15 or newer
            .font(.callout.monospaced())
                   ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:24:28: error: 'monospaced()' is only available in macOS 12.0 or newer
            .font(.callout.monospaced())
                           ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:22:35: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
        ScrollView([.horizontal]) {
                                  ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:21:31: error: 'buildIf' is only available in macOS 10.15 or newer
      if self.showingFullDiff {
                              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:21:31: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
      if self.showingFullDiff {
                              ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:26:7: error: 'buildIf' is only available in macOS 10.15 or newer
      }
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:28:6: error: 'padding' is only available in macOS 10.15 or newer
    .padding(.init(
     ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:33:6: error: 'background(_:ignoresSafeAreaEdges:)' is only available in macOS 12.0 or newer
    .background(.background)
     ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:33:18: error: 'background' is only available in macOS 11.0 or newer
    .background(.background)
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:34:6: error: 'onTapGesture(count:perform:)' is only available in macOS 10.15 or newer
    .onTapGesture {
     ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:34:6: note: add 'if #available' version check
    .onTapGesture {
     ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:35:7: error: 'withAnimation' is only available in macOS 10.15 or newer
      withAnimation {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:35:7: note: add 'if #available' version check
      withAnimation {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:36:9: error: cannot pass as inout because setter for 'showingFullDiff' is only available in macOS 10.15 or newer
        self.showingFullDiff.toggle()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:36:9: note: add 'if #available' version check
        self.showingFullDiff.toggle()
        ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:12:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionView.swift:6:8: note: add @available attribute to enclosing struct
struct AssertionView: View {
       ^
[14/15] Compiling PlaygroundTester AssertionsView.swift
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionsView.swift:10:18: error: 'View' is only available in macOS 10.15 or newer
  var body: some View {
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionsView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionsView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionsView.swift:25:34: error: cannot find 'UIColor' in scope
    .background(content: { Color(UIColor.tertiarySystemGroupedBackground) })
                                 ^~~~~~~
[15/15] Compiling PlaygroundTester ResultViewModel.swift
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionsView.swift:10:18: error: 'View' is only available in macOS 10.15 or newer
  var body: some View {
                 ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionsView.swift:10:7: note: add @available attribute to enclosing property
  var body: some View {
      ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionsView.swift:5:8: note: add @available attribute to enclosing struct
struct AssertionsView: View {
       ^
/Users/builder/builds/TDmZkXJm/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/PlaygroundTester/Sources/PlaygroundTester/Views/AssertionsView.swift:25:34: error: cannot find 'UIColor' in scope
    .background(content: { Color(UIColor.tertiarySystemGroupedBackground) })
                                 ^~~~~~~
error: fatalError
BUILD FAILURE 5.9 macosSpm