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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Successful build of GraphViz, reference main (083bcc), with Swift 6.0 for macOS (SPM) on 6 Nov 2024 09:53:12 UTC.

Swift 6 data race errors: 2

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/tuist/GraphViz.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/tuist/GraphViz
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 083bccf Updates to work with Xcode 16
Cloned https://github.com/tuist/GraphViz.git
Revision (git rev-parse @):
083bccf9e492fd5731dd288a46741ea80148f508
SUCCESS checkout https://github.com/tuist/GraphViz.git at main
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "dependencies": [
    {
      "identity": "graphviz",
      "name": "GraphViz",
      "url": "https://github.com/tuist/GraphViz.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/GraphViz",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/tuist/GraphViz.git
[1/572] Fetching graphviz
Fetched https://github.com/tuist/GraphViz.git from cache (1.04s)
Creating working copy for https://github.com/tuist/GraphViz.git
Working copy of https://github.com/tuist/GraphViz.git resolved at main (083bccf)
warning: '.resolve-product-dependencies': dependency 'graphviz' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/tuist/GraphViz.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--7754E27361AE5C74.txt
[3/32] Emitting module GraphViz
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Extensions/KeyValuePairs+Extensions.swift:1:1: warning: extension declares a conformance of imported type 'KeyValuePairs' to imported protocol 'Equatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
 1 | extension KeyValuePairs: Equatable where Key: Equatable, Value: Equatable {
   | |- warning: extension declares a conformance of imported type 'KeyValuePairs' to imported protocol 'Equatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
 2 |     public static func == (lhs: KeyValuePairs<Key, Value>, rhs: KeyValuePairs<Key, Value>) -> Bool {
 3 |         guard lhs.count == rhs.count else { return false }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Extensions/KeyValuePairs+Extensions.swift:12:1: warning: extension declares a conformance of imported type 'KeyValuePairs' to imported protocol 'Hashable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
10 | }
11 |
12 | extension KeyValuePairs: Hashable where Key: Hashable, Value: Hashable {
   | |- warning: extension declares a conformance of imported type 'KeyValuePairs' to imported protocol 'Hashable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
13 |     public func hash(into hasher: inout Hasher) {
14 |         for (key, value) in self {
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/DOT/DOTEncoder.swift:23:24: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'DOTEncoder' may have shared mutable state; this is an error in the Swift 6 language mode
  3 | /// For more information about the DOT language,
  4 | /// see <https://www.graphviz.org/doc/info/lang.html>.
  5 | public struct DOTEncoder {
    |               `- note: consider making struct 'DOTEncoder' conform to the 'Sendable' protocol
  6 |     public enum Delimiter: String {
  7 |         case comma = ","
    :
 21 |     public var omitEmptyNodes: Bool = true
 22 |
 23 |     private static let shared = DOTEncoder()
    |                        |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'DOTEncoder' may have shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: annotate 'shared' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 24 |
 25 |     /// Creates a new DOT encoder.
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:30:20: warning: static property 'removeEdgesImpliedByTransitivity' is not concurrency-safe because non-'Sendable' type 'Renderer.Options' may have shared mutable state; this is an error in the Swift 6 language mode
 11 | public class Renderer {
 12 |     /// Rendering options.
 13 |     public struct Options: OptionSet {
    |                   `- note: consider making struct 'Options' conform to the 'Sendable' protocol
 14 |         public let rawValue: Int
 15 |
    :
 28 |          Undirected graphs are silently ignored.
 29 |          */
 30 |         static let removeEdgesImpliedByTransitivity = Options(rawValue: 1 << 0)
    |                    |- warning: static property 'removeEdgesImpliedByTransitivity' is not concurrency-safe because non-'Sendable' type 'Renderer.Options' may have shared mutable state; this is an error in the Swift 6 language mode
    |                    |- note: annotate 'removeEdgesImpliedByTransitivity' with '@MainActor' if property should only be accessed from the main actor
    |                    `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 31 |     }
 32 |
[4/35] Compiling GraphViz Position.swift
[5/35] Compiling GraphViz Rectangle.swift
[6/35] Compiling GraphViz Size.swift
[7/35] Compiling GraphViz GraphBuilder.swift
[8/35] Compiling GraphViz BackwardEdgeOperator.swift
[9/35] Compiling GraphViz BidirectionalEdgeOperator.swift
[10/35] Compiling GraphViz ForwardEdgeOperator.swift
[11/35] Compiling GraphViz Edge+Extensions.swift
[12/35] Compiling GraphViz Graph+Extensions.swift
[13/35] Compiling GraphViz Node+Extensions.swift
[14/35] Compiling GraphViz Subgraph+Extensions.swift
[15/35] Compiling GraphViz Error.swift
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:30:20: warning: static property 'removeEdgesImpliedByTransitivity' is not concurrency-safe because non-'Sendable' type 'Renderer.Options' may have shared mutable state; this is an error in the Swift 6 language mode
 11 | public class Renderer {
 12 |     /// Rendering options.
 13 |     public struct Options: OptionSet {
    |                   `- note: consider making struct 'Options' conform to the 'Sendable' protocol
 14 |         public let rawValue: Int
 15 |
    :
 28 |          Undirected graphs are silently ignored.
 29 |          */
 30 |         static let removeEdgesImpliedByTransitivity = Options(rawValue: 1 << 0)
    |                    |- warning: static property 'removeEdgesImpliedByTransitivity' is not concurrency-safe because non-'Sendable' type 'Renderer.Options' may have shared mutable state; this is an error in the Swift 6 language mode
    |                    |- note: annotate 'removeEdgesImpliedByTransitivity' with '@MainActor' if property should only be accessed from the main actor
    |                    `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 31 |     }
 32 |
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:93:20: warning: capture of 'options' with non-sendable type 'Renderer.Options' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 11 | public class Renderer {
 12 |     /// Rendering options.
 13 |     public struct Options: OptionSet {
    |                   `- note: consider making struct 'Options' conform to the 'Sendable' protocol
 14 |         public let rawValue: Int
 15 |
    :
 91 |                 }
 92 |
 93 |                 if options.contains(.removeEdgesImpliedByTransitivity) {
    |                    `- warning: capture of 'options' with non-sendable type 'Renderer.Options' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 94 |                     try attempt { gvToolTred(graph) }
 95 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:97:21: warning: capture of 'layout' with non-sendable type 'LayoutAlgorithm' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 95 |                 }
 96 |
 97 |                 try layout.rawValue.withCString { cString in
    |                     `- warning: capture of 'layout' with non-sendable type 'LayoutAlgorithm' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 98 |                     try attempt { gvLayout(context, graph, cString) }
 99 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Rendering/LayoutAlgorithm.swift:1:13: note: consider making enum 'LayoutAlgorithm' conform to the 'Sendable' protocol
 1 | public enum LayoutAlgorithm: String {
   |             `- note: consider making enum 'LayoutAlgorithm' conform to the 'Sendable' protocol
 2 |     /// dot draws directed graphs. It works well on DAGs and other graphs that can be drawn as hierarchies.
 3 |     case dot
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:104:21: warning: capture of 'format' with non-sendable type 'Format' in a `@Sendable` closure; this is an error in the Swift 6 language mode
102 |                 var data: UnsafeMutablePointer<Int8>?
103 |                 var length: UInt32 = 0
104 |                 try format.rawValue.withCString { cString in
    |                     `- warning: capture of 'format' with non-sendable type 'Format' in a `@Sendable` closure; this is an error in the Swift 6 language mode
105 |                     try attempt { gvRenderData(context, graph, cString, &data, &length) }
106 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Rendering/Format.swift:1:13: note: consider making enum 'Format' conform to the 'Sendable' protocol
  1 | public enum Format: String, Hashable {
    |             `- note: consider making enum 'Format' conform to the 'Sendable' protocol
  2 |     /// Windows Bitmap Format
  3 |     case bmp
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:113:13: warning: capture of 'completion' with non-sendable type '(Result<Data, any Error>) -> Void' in a `@Sendable` closure; this is an error in the Swift 6 language mode
111 |             }
112 |
113 |             completion(result)
    |             |- warning: capture of 'completion' with non-sendable type '(Result<Data, any Error>) -> Void' in a `@Sendable` closure; this is an error in the Swift 6 language mode
    |             `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
114 |         }
115 |     }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:93:20: warning: capture of 'options' with non-sendable type 'Renderer.Options' in an isolated closure; this is an error in the Swift 6 language mode
 11 | public class Renderer {
 12 |     /// Rendering options.
 13 |     public struct Options: OptionSet {
    |                   `- note: consider making struct 'Options' conform to the 'Sendable' protocol
 14 |         public let rawValue: Int
 15 |
    :
 91 |                 }
 92 |
 93 |                 if options.contains(.removeEdgesImpliedByTransitivity) {
    |                    `- warning: capture of 'options' with non-sendable type 'Renderer.Options' in an isolated closure; this is an error in the Swift 6 language mode
 94 |                     try attempt { gvToolTred(graph) }
 95 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:97:21: warning: capture of 'layout' with non-sendable type 'LayoutAlgorithm' in an isolated closure; this is an error in the Swift 6 language mode
 95 |                 }
 96 |
 97 |                 try layout.rawValue.withCString { cString in
    |                     `- warning: capture of 'layout' with non-sendable type 'LayoutAlgorithm' in an isolated closure; this is an error in the Swift 6 language mode
 98 |                     try attempt { gvLayout(context, graph, cString) }
 99 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Rendering/LayoutAlgorithm.swift:1:13: note: consider making enum 'LayoutAlgorithm' conform to the 'Sendable' protocol
 1 | public enum LayoutAlgorithm: String {
   |             `- note: consider making enum 'LayoutAlgorithm' conform to the 'Sendable' protocol
 2 |     /// dot draws directed graphs. It works well on DAGs and other graphs that can be drawn as hierarchies.
 3 |     case dot
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:104:21: warning: capture of 'format' with non-sendable type 'Format' in an isolated closure; this is an error in the Swift 6 language mode
102 |                 var data: UnsafeMutablePointer<Int8>?
103 |                 var length: UInt32 = 0
104 |                 try format.rawValue.withCString { cString in
    |                     `- warning: capture of 'format' with non-sendable type 'Format' in an isolated closure; this is an error in the Swift 6 language mode
105 |                     try attempt { gvRenderData(context, graph, cString, &data, &length) }
106 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Rendering/Format.swift:1:13: note: consider making enum 'Format' conform to the 'Sendable' protocol
  1 | public enum Format: String, Hashable {
    |             `- note: consider making enum 'Format' conform to the 'Sendable' protocol
  2 |     /// Windows Bitmap Format
  3 |     case bmp
[16/35] Compiling GraphViz Graph+Rendering.swift
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:30:20: warning: static property 'removeEdgesImpliedByTransitivity' is not concurrency-safe because non-'Sendable' type 'Renderer.Options' may have shared mutable state; this is an error in the Swift 6 language mode
 11 | public class Renderer {
 12 |     /// Rendering options.
 13 |     public struct Options: OptionSet {
    |                   `- note: consider making struct 'Options' conform to the 'Sendable' protocol
 14 |         public let rawValue: Int
 15 |
    :
 28 |          Undirected graphs are silently ignored.
 29 |          */
 30 |         static let removeEdgesImpliedByTransitivity = Options(rawValue: 1 << 0)
    |                    |- warning: static property 'removeEdgesImpliedByTransitivity' is not concurrency-safe because non-'Sendable' type 'Renderer.Options' may have shared mutable state; this is an error in the Swift 6 language mode
    |                    |- note: annotate 'removeEdgesImpliedByTransitivity' with '@MainActor' if property should only be accessed from the main actor
    |                    `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 31 |     }
 32 |
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:93:20: warning: capture of 'options' with non-sendable type 'Renderer.Options' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 11 | public class Renderer {
 12 |     /// Rendering options.
 13 |     public struct Options: OptionSet {
    |                   `- note: consider making struct 'Options' conform to the 'Sendable' protocol
 14 |         public let rawValue: Int
 15 |
    :
 91 |                 }
 92 |
 93 |                 if options.contains(.removeEdgesImpliedByTransitivity) {
    |                    `- warning: capture of 'options' with non-sendable type 'Renderer.Options' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 94 |                     try attempt { gvToolTred(graph) }
 95 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:97:21: warning: capture of 'layout' with non-sendable type 'LayoutAlgorithm' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 95 |                 }
 96 |
 97 |                 try layout.rawValue.withCString { cString in
    |                     `- warning: capture of 'layout' with non-sendable type 'LayoutAlgorithm' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 98 |                     try attempt { gvLayout(context, graph, cString) }
 99 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Rendering/LayoutAlgorithm.swift:1:13: note: consider making enum 'LayoutAlgorithm' conform to the 'Sendable' protocol
 1 | public enum LayoutAlgorithm: String {
   |             `- note: consider making enum 'LayoutAlgorithm' conform to the 'Sendable' protocol
 2 |     /// dot draws directed graphs. It works well on DAGs and other graphs that can be drawn as hierarchies.
 3 |     case dot
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:104:21: warning: capture of 'format' with non-sendable type 'Format' in a `@Sendable` closure; this is an error in the Swift 6 language mode
102 |                 var data: UnsafeMutablePointer<Int8>?
103 |                 var length: UInt32 = 0
104 |                 try format.rawValue.withCString { cString in
    |                     `- warning: capture of 'format' with non-sendable type 'Format' in a `@Sendable` closure; this is an error in the Swift 6 language mode
105 |                     try attempt { gvRenderData(context, graph, cString, &data, &length) }
106 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Rendering/Format.swift:1:13: note: consider making enum 'Format' conform to the 'Sendable' protocol
  1 | public enum Format: String, Hashable {
    |             `- note: consider making enum 'Format' conform to the 'Sendable' protocol
  2 |     /// Windows Bitmap Format
  3 |     case bmp
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:113:13: warning: capture of 'completion' with non-sendable type '(Result<Data, any Error>) -> Void' in a `@Sendable` closure; this is an error in the Swift 6 language mode
111 |             }
112 |
113 |             completion(result)
    |             |- warning: capture of 'completion' with non-sendable type '(Result<Data, any Error>) -> Void' in a `@Sendable` closure; this is an error in the Swift 6 language mode
    |             `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
114 |         }
115 |     }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:93:20: warning: capture of 'options' with non-sendable type 'Renderer.Options' in an isolated closure; this is an error in the Swift 6 language mode
 11 | public class Renderer {
 12 |     /// Rendering options.
 13 |     public struct Options: OptionSet {
    |                   `- note: consider making struct 'Options' conform to the 'Sendable' protocol
 14 |         public let rawValue: Int
 15 |
    :
 91 |                 }
 92 |
 93 |                 if options.contains(.removeEdgesImpliedByTransitivity) {
    |                    `- warning: capture of 'options' with non-sendable type 'Renderer.Options' in an isolated closure; this is an error in the Swift 6 language mode
 94 |                     try attempt { gvToolTred(graph) }
 95 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:97:21: warning: capture of 'layout' with non-sendable type 'LayoutAlgorithm' in an isolated closure; this is an error in the Swift 6 language mode
 95 |                 }
 96 |
 97 |                 try layout.rawValue.withCString { cString in
    |                     `- warning: capture of 'layout' with non-sendable type 'LayoutAlgorithm' in an isolated closure; this is an error in the Swift 6 language mode
 98 |                     try attempt { gvLayout(context, graph, cString) }
 99 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Rendering/LayoutAlgorithm.swift:1:13: note: consider making enum 'LayoutAlgorithm' conform to the 'Sendable' protocol
 1 | public enum LayoutAlgorithm: String {
   |             `- note: consider making enum 'LayoutAlgorithm' conform to the 'Sendable' protocol
 2 |     /// dot draws directed graphs. It works well on DAGs and other graphs that can be drawn as hierarchies.
 3 |     case dot
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:104:21: warning: capture of 'format' with non-sendable type 'Format' in an isolated closure; this is an error in the Swift 6 language mode
102 |                 var data: UnsafeMutablePointer<Int8>?
103 |                 var length: UInt32 = 0
104 |                 try format.rawValue.withCString { cString in
    |                     `- warning: capture of 'format' with non-sendable type 'Format' in an isolated closure; this is an error in the Swift 6 language mode
105 |                     try attempt { gvRenderData(context, graph, cString, &data, &length) }
106 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Rendering/Format.swift:1:13: note: consider making enum 'Format' conform to the 'Sendable' protocol
  1 | public enum Format: String, Hashable {
    |             `- note: consider making enum 'Format' conform to the 'Sendable' protocol
  2 |     /// Windows Bitmap Format
  3 |     case bmp
[17/35] Compiling GraphViz Renderer.swift
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:30:20: warning: static property 'removeEdgesImpliedByTransitivity' is not concurrency-safe because non-'Sendable' type 'Renderer.Options' may have shared mutable state; this is an error in the Swift 6 language mode
 11 | public class Renderer {
 12 |     /// Rendering options.
 13 |     public struct Options: OptionSet {
    |                   `- note: consider making struct 'Options' conform to the 'Sendable' protocol
 14 |         public let rawValue: Int
 15 |
    :
 28 |          Undirected graphs are silently ignored.
 29 |          */
 30 |         static let removeEdgesImpliedByTransitivity = Options(rawValue: 1 << 0)
    |                    |- warning: static property 'removeEdgesImpliedByTransitivity' is not concurrency-safe because non-'Sendable' type 'Renderer.Options' may have shared mutable state; this is an error in the Swift 6 language mode
    |                    |- note: annotate 'removeEdgesImpliedByTransitivity' with '@MainActor' if property should only be accessed from the main actor
    |                    `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 31 |     }
 32 |
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:93:20: warning: capture of 'options' with non-sendable type 'Renderer.Options' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 11 | public class Renderer {
 12 |     /// Rendering options.
 13 |     public struct Options: OptionSet {
    |                   `- note: consider making struct 'Options' conform to the 'Sendable' protocol
 14 |         public let rawValue: Int
 15 |
    :
 91 |                 }
 92 |
 93 |                 if options.contains(.removeEdgesImpliedByTransitivity) {
    |                    `- warning: capture of 'options' with non-sendable type 'Renderer.Options' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 94 |                     try attempt { gvToolTred(graph) }
 95 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:97:21: warning: capture of 'layout' with non-sendable type 'LayoutAlgorithm' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 95 |                 }
 96 |
 97 |                 try layout.rawValue.withCString { cString in
    |                     `- warning: capture of 'layout' with non-sendable type 'LayoutAlgorithm' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 98 |                     try attempt { gvLayout(context, graph, cString) }
 99 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Rendering/LayoutAlgorithm.swift:1:13: note: consider making enum 'LayoutAlgorithm' conform to the 'Sendable' protocol
 1 | public enum LayoutAlgorithm: String {
   |             `- note: consider making enum 'LayoutAlgorithm' conform to the 'Sendable' protocol
 2 |     /// dot draws directed graphs. It works well on DAGs and other graphs that can be drawn as hierarchies.
 3 |     case dot
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:104:21: warning: capture of 'format' with non-sendable type 'Format' in a `@Sendable` closure; this is an error in the Swift 6 language mode
102 |                 var data: UnsafeMutablePointer<Int8>?
103 |                 var length: UInt32 = 0
104 |                 try format.rawValue.withCString { cString in
    |                     `- warning: capture of 'format' with non-sendable type 'Format' in a `@Sendable` closure; this is an error in the Swift 6 language mode
105 |                     try attempt { gvRenderData(context, graph, cString, &data, &length) }
106 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Rendering/Format.swift:1:13: note: consider making enum 'Format' conform to the 'Sendable' protocol
  1 | public enum Format: String, Hashable {
    |             `- note: consider making enum 'Format' conform to the 'Sendable' protocol
  2 |     /// Windows Bitmap Format
  3 |     case bmp
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:113:13: warning: capture of 'completion' with non-sendable type '(Result<Data, any Error>) -> Void' in a `@Sendable` closure; this is an error in the Swift 6 language mode
111 |             }
112 |
113 |             completion(result)
    |             |- warning: capture of 'completion' with non-sendable type '(Result<Data, any Error>) -> Void' in a `@Sendable` closure; this is an error in the Swift 6 language mode
    |             `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
114 |         }
115 |     }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:93:20: warning: capture of 'options' with non-sendable type 'Renderer.Options' in an isolated closure; this is an error in the Swift 6 language mode
 11 | public class Renderer {
 12 |     /// Rendering options.
 13 |     public struct Options: OptionSet {
    |                   `- note: consider making struct 'Options' conform to the 'Sendable' protocol
 14 |         public let rawValue: Int
 15 |
    :
 91 |                 }
 92 |
 93 |                 if options.contains(.removeEdgesImpliedByTransitivity) {
    |                    `- warning: capture of 'options' with non-sendable type 'Renderer.Options' in an isolated closure; this is an error in the Swift 6 language mode
 94 |                     try attempt { gvToolTred(graph) }
 95 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:97:21: warning: capture of 'layout' with non-sendable type 'LayoutAlgorithm' in an isolated closure; this is an error in the Swift 6 language mode
 95 |                 }
 96 |
 97 |                 try layout.rawValue.withCString { cString in
    |                     `- warning: capture of 'layout' with non-sendable type 'LayoutAlgorithm' in an isolated closure; this is an error in the Swift 6 language mode
 98 |                     try attempt { gvLayout(context, graph, cString) }
 99 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Rendering/LayoutAlgorithm.swift:1:13: note: consider making enum 'LayoutAlgorithm' conform to the 'Sendable' protocol
 1 | public enum LayoutAlgorithm: String {
   |             `- note: consider making enum 'LayoutAlgorithm' conform to the 'Sendable' protocol
 2 |     /// dot draws directed graphs. It works well on DAGs and other graphs that can be drawn as hierarchies.
 3 |     case dot
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Tools/Renderer.swift:104:21: warning: capture of 'format' with non-sendable type 'Format' in an isolated closure; this is an error in the Swift 6 language mode
102 |                 var data: UnsafeMutablePointer<Int8>?
103 |                 var length: UInt32 = 0
104 |                 try format.rawValue.withCString { cString in
    |                     `- warning: capture of 'format' with non-sendable type 'Format' in an isolated closure; this is an error in the Swift 6 language mode
105 |                     try attempt { gvRenderData(context, graph, cString, &data, &length) }
106 |                 }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Rendering/Format.swift:1:13: note: consider making enum 'Format' conform to the 'Sendable' protocol
  1 | public enum Format: String, Hashable {
    |             `- note: consider making enum 'Format' conform to the 'Sendable' protocol
  2 |     /// Windows Bitmap Format
  3 |     case bmp
[18/35] Compiling GraphViz UndirectedEdgeOperator.swift
[19/35] Compiling GraphViz SubgraphBuilder.swift
[20/35] Compiling GraphViz Attribute.swift
[21/35] Compiling GraphViz DOT.swift
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/DOT/DOTEncoder.swift:23:24: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'DOTEncoder' may have shared mutable state; this is an error in the Swift 6 language mode
  3 | /// For more information about the DOT language,
  4 | /// see <https://www.graphviz.org/doc/info/lang.html>.
  5 | public struct DOTEncoder {
    |               `- note: consider making struct 'DOTEncoder' conform to the 'Sendable' protocol
  6 |     public enum Delimiter: String {
  7 |         case comma = ","
    :
 21 |     public var omitEmptyNodes: Bool = true
 22 |
 23 |     private static let shared = DOTEncoder()
    |                        |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'DOTEncoder' may have shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: annotate 'shared' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 24 |
 25 |     /// Creates a new DOT encoder.
[22/35] Compiling GraphViz DOTEncoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/DOT/DOTEncoder.swift:23:24: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'DOTEncoder' may have shared mutable state; this is an error in the Swift 6 language mode
  3 | /// For more information about the DOT language,
  4 | /// see <https://www.graphviz.org/doc/info/lang.html>.
  5 | public struct DOTEncoder {
    |               `- note: consider making struct 'DOTEncoder' conform to the 'Sendable' protocol
  6 |     public enum Delimiter: String {
  7 |         case comma = ","
    :
 21 |     public var omitEmptyNodes: Bool = true
 22 |
 23 |     private static let shared = DOTEncoder()
    |                        |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'DOTEncoder' may have shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: annotate 'shared' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 24 |
 25 |     /// Creates a new DOT encoder.
[23/35] Compiling GraphViz DOTRepresentable.swift
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/DOT/DOTEncoder.swift:23:24: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'DOTEncoder' may have shared mutable state; this is an error in the Swift 6 language mode
  3 | /// For more information about the DOT language,
  4 | /// see <https://www.graphviz.org/doc/info/lang.html>.
  5 | public struct DOTEncoder {
    |               `- note: consider making struct 'DOTEncoder' conform to the 'Sendable' protocol
  6 |     public enum Delimiter: String {
  7 |         case comma = ","
    :
 21 |     public var omitEmptyNodes: Bool = true
 22 |
 23 |     private static let shared = DOTEncoder()
    |                        |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'DOTEncoder' may have shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: annotate 'shared' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 24 |
 25 |     /// Creates a new DOT encoder.
[24/35] Compiling GraphViz Edge.swift
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Extensions/KeyValuePairs+Extensions.swift:1:1: warning: extension declares a conformance of imported type 'KeyValuePairs' to imported protocol 'Equatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
 1 | extension KeyValuePairs: Equatable where Key: Equatable, Value: Equatable {
   | |- warning: extension declares a conformance of imported type 'KeyValuePairs' to imported protocol 'Equatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
 2 |     public static func == (lhs: KeyValuePairs<Key, Value>, rhs: KeyValuePairs<Key, Value>) -> Bool {
 3 |         guard lhs.count == rhs.count else { return false }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Extensions/KeyValuePairs+Extensions.swift:12:1: warning: extension declares a conformance of imported type 'KeyValuePairs' to imported protocol 'Hashable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
10 | }
11 |
12 | extension KeyValuePairs: Hashable where Key: Hashable, Value: Hashable {
   | |- warning: extension declares a conformance of imported type 'KeyValuePairs' to imported protocol 'Hashable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
13 |     public func hash(into hasher: inout Hasher) {
14 |         for (key, value) in self {
[25/35] Compiling GraphViz KeyValuePairs+Extensions.swift
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Extensions/KeyValuePairs+Extensions.swift:1:1: warning: extension declares a conformance of imported type 'KeyValuePairs' to imported protocol 'Equatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
 1 | extension KeyValuePairs: Equatable where Key: Equatable, Value: Equatable {
   | |- warning: extension declares a conformance of imported type 'KeyValuePairs' to imported protocol 'Equatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
 2 |     public static func == (lhs: KeyValuePairs<Key, Value>, rhs: KeyValuePairs<Key, Value>) -> Bool {
 3 |         guard lhs.count == rhs.count else { return false }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Extensions/KeyValuePairs+Extensions.swift:12:1: warning: extension declares a conformance of imported type 'KeyValuePairs' to imported protocol 'Hashable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
10 | }
11 |
12 | extension KeyValuePairs: Hashable where Key: Hashable, Value: Hashable {
   | |- warning: extension declares a conformance of imported type 'KeyValuePairs' to imported protocol 'Hashable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
13 |     public func hash(into hasher: inout Hasher) {
14 |         for (key, value) in self {
[26/35] Compiling GraphViz Graph.swift
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Extensions/KeyValuePairs+Extensions.swift:1:1: warning: extension declares a conformance of imported type 'KeyValuePairs' to imported protocol 'Equatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
 1 | extension KeyValuePairs: Equatable where Key: Equatable, Value: Equatable {
   | |- warning: extension declares a conformance of imported type 'KeyValuePairs' to imported protocol 'Equatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
 2 |     public static func == (lhs: KeyValuePairs<Key, Value>, rhs: KeyValuePairs<Key, Value>) -> Bool {
 3 |         guard lhs.count == rhs.count else { return false }
/Users/admin/builder/spi-builder-workspace/Sources/GraphViz/Core/Extensions/KeyValuePairs+Extensions.swift:12:1: warning: extension declares a conformance of imported type 'KeyValuePairs' to imported protocol 'Hashable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
10 | }
11 |
12 | extension KeyValuePairs: Hashable where Key: Hashable, Value: Hashable {
   | |- warning: extension declares a conformance of imported type 'KeyValuePairs' to imported protocol 'Hashable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
13 |     public func hash(into hasher: inout Hasher) {
14 |         for (key, value) in self {
[27/35] Compiling GraphViz Node.swift
[28/35] Compiling GraphViz Format.swift
[29/35] Compiling GraphViz LayoutAlgorithm.swift
[30/35] Compiling GraphViz Location.swift
[31/35] Compiling GraphViz Ordering.swift
[32/35] Compiling GraphViz Point.swift
[33/35] Compiling GraphViz Subgraph.swift
[34/35] Compiling GraphViz AspectRatio.swift
[35/35] Compiling GraphViz Color.swift
Build complete! (14.03s)
warning: failed to retrieve search paths with pkg-config; maybe pkg-config is not installed
warning: you may be able to install libcgraph using your system-packager:
    brew install graphviz
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "GraphViz",
  "name" : "GraphViz",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "GraphViz",
      "targets" : [
        "GraphViz"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "GraphVizTests",
      "module_type" : "SwiftTarget",
      "name" : "GraphVizTests",
      "path" : "Tests/GraphVizTests",
      "sources" : [
        "AttributesTest.swift",
        "EdgeTests.swift",
        "GraphBuilderTests.swift",
        "GraphTests.swift",
        "NodeTests.swift",
        "RenderingTests.swift",
        "SubgraphBuilderTests.swift",
        "SubgraphTests.swift"
      ],
      "target_dependencies" : [
        "GraphViz"
      ],
      "type" : "test"
    },
    {
      "c99name" : "GraphViz",
      "module_type" : "SwiftTarget",
      "name" : "GraphViz",
      "path" : "Sources/GraphViz",
      "product_memberships" : [
        "GraphViz"
      ],
      "sources" : [
        "Builder/Extensions/Edge+Extensions.swift",
        "Builder/Extensions/Graph+Extensions.swift",
        "Builder/Extensions/Node+Extensions.swift",
        "Builder/Extensions/Subgraph+Extensions.swift",
        "Builder/GraphBuilder.swift",
        "Builder/Operators/BackwardEdgeOperator.swift",
        "Builder/Operators/BidirectionalEdgeOperator.swift",
        "Builder/Operators/ForwardEdgeOperator.swift",
        "Builder/Operators/UndirectedEdgeOperator.swift",
        "Builder/SubgraphBuilder.swift",
        "Core/Attribute.swift",
        "Core/Edge.swift",
        "Core/Extensions/KeyValuePairs+Extensions.swift",
        "Core/Graph.swift",
        "Core/Node.swift",
        "Core/Rendering/Format.swift",
        "Core/Rendering/LayoutAlgorithm.swift",
        "Core/Subgraph.swift",
        "Core/Supporting Types/AspectRatio.swift",
        "Core/Supporting Types/Color.swift",
        "Core/Supporting Types/Location.swift",
        "Core/Supporting Types/Ordering.swift",
        "Core/Supporting Types/Point.swift",
        "Core/Supporting Types/Position.swift",
        "Core/Supporting Types/Rectangle.swift",
        "Core/Supporting Types/Size.swift",
        "DOT/DOT.swift",
        "DOT/DOTEncoder.swift",
        "DOT/DOTRepresentable.swift",
        "Tools/Error.swift",
        "Tools/Extensions/Graph+Rendering.swift",
        "Tools/Renderer.swift"
      ],
      "target_dependencies" : [
        "Clibgraphviz"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Clibgraphviz",
      "module_type" : "SystemLibraryTarget",
      "name" : "Clibgraphviz",
      "path" : "Sources/Clibgraphviz",
      "product_memberships" : [
        "GraphViz"
      ],
      "sources" : [
      ],
      "type" : "system-target"
    }
  ],
  "tools_version" : "5.2"
}
Done.