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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 XMLParsing, reference master (4bdaa5), with Swift 6.0 for macOS (SPM) on 1 Nov 2024 00:24:08 UTC.

Swift 6 data race errors: 3

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/dingwilson/XMLParsing.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/dingwilson/XMLParsing
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 4bdaa51 Updated podspec to 0.0.2
Cloned https://github.com/dingwilson/XMLParsing.git
Revision (git rev-parse @):
4bdaa51c4871654f8cae31f6683e3eaa635b36df
SUCCESS checkout https://github.com/dingwilson/XMLParsing.git at master
========================================
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": "xmlparsing",
      "name": "XMLParsing",
      "url": "https://github.com/dingwilson/XMLParsing.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/XMLParsing",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/dingwilson/XMLParsing.git
[1/319] Fetching xmlparsing
Fetched https://github.com/dingwilson/XMLParsing.git from cache (0.78s)
Creating working copy for https://github.com/dingwilson/XMLParsing.git
Working copy of https://github.com/dingwilson/XMLParsing.git resolved at master (4bdaa51)
warning: '.resolve-product-dependencies': dependency 'xmlparsing' 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/dingwilson/XMLParsing.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
[3/14] Compiling XMLParsing XMLKey.swift
[4/15] Compiling XMLParsing XMLEncoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/XMLParsing/Encoder/XMLEncoder.swift:29:27: warning: static property 'prettyPrinted' is not concurrency-safe because non-'Sendable' type 'XMLEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
 17 |     // MARK: Options
 18 |     /// The formatting of the output XML data.
 19 |     public struct OutputFormatting : OptionSet {
    |                   `- note: consider making struct 'OutputFormatting' conform to the 'Sendable' protocol
 20 |         /// The format's default value.
 21 |         public let rawValue: UInt
    :
 27 |
 28 |         /// Produce human-readable XML with indented output.
 29 |         public static let prettyPrinted = OutputFormatting(rawValue: 1 << 0)
    |                           |- warning: static property 'prettyPrinted' is not concurrency-safe because non-'Sendable' type 'XMLEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: annotate 'prettyPrinted' 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
 30 |
 31 |         /// Produce XML with dictionary keys sorted in lexicographic order.
/Users/admin/builder/spi-builder-workspace/Sources/XMLParsing/Encoder/XMLEncoder.swift:33:27: warning: static property 'sortedKeys' is not concurrency-safe because non-'Sendable' type 'XMLEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
 17 |     // MARK: Options
 18 |     /// The formatting of the output XML data.
 19 |     public struct OutputFormatting : OptionSet {
    |                   `- note: consider making struct 'OutputFormatting' conform to the 'Sendable' protocol
 20 |         /// The format's default value.
 21 |         public let rawValue: UInt
    :
 31 |         /// Produce XML with dictionary keys sorted in lexicographic order.
 32 |         @available(OSX 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *)
 33 |         public static let sortedKeys    = OutputFormatting(rawValue: 1 << 1)
    |                           |- warning: static property 'sortedKeys' is not concurrency-safe because non-'Sendable' type 'XMLEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: annotate 'sortedKeys' 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
 34 |     }
 35 |
/Users/admin/builder/spi-builder-workspace/Sources/XMLParsing/ISO8601DateFormatter.swift:17:14: warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
15 | // NOTE: This value is implicitly lazy and _must_ be lazy. We're compiled against the latest SDK (w/ ISO8601DateFormatter), but linked against whichever Foundation the user has. ISO8601DateFormatter might not exist, so we better not hit this code path on an older OS.
16 | @available(OSX 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
17 | internal var _iso8601Formatter: ISO8601DateFormatter = {
   |              |- warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |              |- note: convert '_iso8601Formatter' to a 'let' constant to make 'Sendable' shared state immutable
   |              |- note: annotate '_iso8601Formatter' 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
18 |     let formatter = ISO8601DateFormatter()
19 |     formatter.formatOptions = .withInternetDateTime
[5/15] Compiling XMLParsing XMLReferencingEncoder.swift
[6/15] Compiling XMLParsing ISO8601DateFormatter.swift
/Users/admin/builder/spi-builder-workspace/Sources/XMLParsing/ISO8601DateFormatter.swift:17:14: warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
15 | // NOTE: This value is implicitly lazy and _must_ be lazy. We're compiled against the latest SDK (w/ ISO8601DateFormatter), but linked against whichever Foundation the user has. ISO8601DateFormatter might not exist, so we better not hit this code path on an older OS.
16 | @available(OSX 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
17 | internal var _iso8601Formatter: ISO8601DateFormatter = {
   |              |- warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |              |- note: convert '_iso8601Formatter' to a 'let' constant to make 'Sendable' shared state immutable
   |              |- note: annotate '_iso8601Formatter' 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
18 |     let formatter = ISO8601DateFormatter()
19 |     formatter.formatOptions = .withInternetDateTime
[7/15] Compiling XMLParsing EncodingErrorExtension.swift
/Users/admin/builder/spi-builder-workspace/Sources/XMLParsing/Encoder/EncodingErrorExtension.swift:21:5: warning: 'internal' modifier is redundant for static method declared in an internal extension
19 |     /// - parameter path: The path of `CodingKey`s taken to encode this value.
20 |     /// - returns: An `EncodingError` with the appropriate path and debug description.
21 |     internal static func _invalidFloatingPointValue<T : FloatingPoint>(_ value: T, at codingPath: [CodingKey]) -> EncodingError {
   |     `- warning: 'internal' modifier is redundant for static method declared in an internal extension
22 |         let valueDescription: String
23 |         if value == T.infinity {
[8/15] Compiling XMLParsing XMLUnkeyedDecodingContainer.swift
[9/15] Compiling XMLParsing XMLEncodingStorage.swift
[10/15] Compiling XMLParsing DecodingErrorExtension.swift
/Users/admin/builder/spi-builder-workspace/Sources/XMLParsing/Decoder/DecodingErrorExtension.swift:22:5: warning: 'internal' modifier is redundant for static method declared in an internal extension
20 |     /// - parameter reality: The value that was encountered instead of the expected type.
21 |     /// - returns: A `DecodingError` with the appropriate path and debug description.
22 |     internal static func _typeMismatch(at path: [CodingKey], expectation: Any.Type, reality: Any) -> DecodingError {
   |     `- warning: 'internal' modifier is redundant for static method declared in an internal extension
23 |         let description = "Expected to decode \(expectation) but found \(_typeDescription(of: reality)) instead."
24 |         return .typeMismatch(expectation, Context(codingPath: path, debugDescription: description))
/Users/admin/builder/spi-builder-workspace/Sources/XMLParsing/Decoder/DecodingErrorExtension.swift:32:5: warning: 'internal' modifier is redundant for static method declared in an internal extension
30 |     /// - returns: A string describing `value`.
31 |     /// - precondition: `value` is one of the types below.
32 |     internal static func _typeDescription(of value: Any) -> String {
   |     `- warning: 'internal' modifier is redundant for static method declared in an internal extension
33 |         if value is NSNull {
34 |             return "a null value"
/Users/admin/builder/spi-builder-workspace/Sources/XMLParsing/ISO8601DateFormatter.swift:17:14: warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
15 | // NOTE: This value is implicitly lazy and _must_ be lazy. We're compiled against the latest SDK (w/ ISO8601DateFormatter), but linked against whichever Foundation the user has. ISO8601DateFormatter might not exist, so we better not hit this code path on an older OS.
16 | @available(OSX 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
17 | internal var _iso8601Formatter: ISO8601DateFormatter = {
   |              |- warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |              |- note: convert '_iso8601Formatter' to a 'let' constant to make 'Sendable' shared state immutable
   |              |- note: annotate '_iso8601Formatter' 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
18 |     let formatter = ISO8601DateFormatter()
19 |     formatter.formatOptions = .withInternetDateTime
[11/15] Compiling XMLParsing XMLDecoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/XMLParsing/Decoder/DecodingErrorExtension.swift:22:5: warning: 'internal' modifier is redundant for static method declared in an internal extension
20 |     /// - parameter reality: The value that was encountered instead of the expected type.
21 |     /// - returns: A `DecodingError` with the appropriate path and debug description.
22 |     internal static func _typeMismatch(at path: [CodingKey], expectation: Any.Type, reality: Any) -> DecodingError {
   |     `- warning: 'internal' modifier is redundant for static method declared in an internal extension
23 |         let description = "Expected to decode \(expectation) but found \(_typeDescription(of: reality)) instead."
24 |         return .typeMismatch(expectation, Context(codingPath: path, debugDescription: description))
/Users/admin/builder/spi-builder-workspace/Sources/XMLParsing/Decoder/DecodingErrorExtension.swift:32:5: warning: 'internal' modifier is redundant for static method declared in an internal extension
30 |     /// - returns: A string describing `value`.
31 |     /// - precondition: `value` is one of the types below.
32 |     internal static func _typeDescription(of value: Any) -> String {
   |     `- warning: 'internal' modifier is redundant for static method declared in an internal extension
33 |         if value is NSNull {
34 |             return "a null value"
/Users/admin/builder/spi-builder-workspace/Sources/XMLParsing/ISO8601DateFormatter.swift:17:14: warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
15 | // NOTE: This value is implicitly lazy and _must_ be lazy. We're compiled against the latest SDK (w/ ISO8601DateFormatter), but linked against whichever Foundation the user has. ISO8601DateFormatter might not exist, so we better not hit this code path on an older OS.
16 | @available(OSX 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
17 | internal var _iso8601Formatter: ISO8601DateFormatter = {
   |              |- warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |              |- note: convert '_iso8601Formatter' to a 'let' constant to make 'Sendable' shared state immutable
   |              |- note: annotate '_iso8601Formatter' 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
18 |     let formatter = ISO8601DateFormatter()
19 |     formatter.formatOptions = .withInternetDateTime
[12/15] Compiling XMLParsing XMLDecodingStorage.swift
[13/15] Compiling XMLParsing XMLKeyedDecodingContainer.swift
[14/15] Emitting module XMLParsing
/Users/admin/builder/spi-builder-workspace/Sources/XMLParsing/Decoder/DecodingErrorExtension.swift:22:5: warning: 'internal' modifier is redundant for static method declared in an internal extension
20 |     /// - parameter reality: The value that was encountered instead of the expected type.
21 |     /// - returns: A `DecodingError` with the appropriate path and debug description.
22 |     internal static func _typeMismatch(at path: [CodingKey], expectation: Any.Type, reality: Any) -> DecodingError {
   |     `- warning: 'internal' modifier is redundant for static method declared in an internal extension
23 |         let description = "Expected to decode \(expectation) but found \(_typeDescription(of: reality)) instead."
24 |         return .typeMismatch(expectation, Context(codingPath: path, debugDescription: description))
/Users/admin/builder/spi-builder-workspace/Sources/XMLParsing/Decoder/DecodingErrorExtension.swift:32:5: warning: 'internal' modifier is redundant for static method declared in an internal extension
30 |     /// - returns: A string describing `value`.
31 |     /// - precondition: `value` is one of the types below.
32 |     internal static func _typeDescription(of value: Any) -> String {
   |     `- warning: 'internal' modifier is redundant for static method declared in an internal extension
33 |         if value is NSNull {
34 |             return "a null value"
/Users/admin/builder/spi-builder-workspace/Sources/XMLParsing/Encoder/EncodingErrorExtension.swift:21:5: warning: 'internal' modifier is redundant for static method declared in an internal extension
19 |     /// - parameter path: The path of `CodingKey`s taken to encode this value.
20 |     /// - returns: An `EncodingError` with the appropriate path and debug description.
21 |     internal static func _invalidFloatingPointValue<T : FloatingPoint>(_ value: T, at codingPath: [CodingKey]) -> EncodingError {
   |     `- warning: 'internal' modifier is redundant for static method declared in an internal extension
22 |         let valueDescription: String
23 |         if value == T.infinity {
/Users/admin/builder/spi-builder-workspace/Sources/XMLParsing/Encoder/XMLEncoder.swift:29:27: warning: static property 'prettyPrinted' is not concurrency-safe because non-'Sendable' type 'XMLEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
 17 |     // MARK: Options
 18 |     /// The formatting of the output XML data.
 19 |     public struct OutputFormatting : OptionSet {
    |                   `- note: consider making struct 'OutputFormatting' conform to the 'Sendable' protocol
 20 |         /// The format's default value.
 21 |         public let rawValue: UInt
    :
 27 |
 28 |         /// Produce human-readable XML with indented output.
 29 |         public static let prettyPrinted = OutputFormatting(rawValue: 1 << 0)
    |                           |- warning: static property 'prettyPrinted' is not concurrency-safe because non-'Sendable' type 'XMLEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: annotate 'prettyPrinted' 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
 30 |
 31 |         /// Produce XML with dictionary keys sorted in lexicographic order.
/Users/admin/builder/spi-builder-workspace/Sources/XMLParsing/Encoder/XMLEncoder.swift:33:27: warning: static property 'sortedKeys' is not concurrency-safe because non-'Sendable' type 'XMLEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
 17 |     // MARK: Options
 18 |     /// The formatting of the output XML data.
 19 |     public struct OutputFormatting : OptionSet {
    |                   `- note: consider making struct 'OutputFormatting' conform to the 'Sendable' protocol
 20 |         /// The format's default value.
 21 |         public let rawValue: UInt
    :
 31 |         /// Produce XML with dictionary keys sorted in lexicographic order.
 32 |         @available(OSX 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *)
 33 |         public static let sortedKeys    = OutputFormatting(rawValue: 1 << 1)
    |                           |- warning: static property 'sortedKeys' is not concurrency-safe because non-'Sendable' type 'XMLEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: annotate 'sortedKeys' 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
 34 |     }
 35 |
/Users/admin/builder/spi-builder-workspace/Sources/XMLParsing/ISO8601DateFormatter.swift:17:14: warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
15 | // NOTE: This value is implicitly lazy and _must_ be lazy. We're compiled against the latest SDK (w/ ISO8601DateFormatter), but linked against whichever Foundation the user has. ISO8601DateFormatter might not exist, so we better not hit this code path on an older OS.
16 | @available(OSX 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
17 | internal var _iso8601Formatter: ISO8601DateFormatter = {
   |              |- warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |              |- note: convert '_iso8601Formatter' to a 'let' constant to make 'Sendable' shared state immutable
   |              |- note: annotate '_iso8601Formatter' 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
18 |     let formatter = ISO8601DateFormatter()
19 |     formatter.formatOptions = .withInternetDateTime
[15/15] Compiling XMLParsing XMLStackParser.swift
Build complete! (15.18s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "XMLParsing",
  "name" : "XMLParsing",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "XMLParsing",
      "targets" : [
        "XMLParsing"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "XMLParsingTests",
      "module_type" : "SwiftTarget",
      "name" : "XMLParsingTests",
      "path" : "Tests/XMLParsingTests",
      "sources" : [
        "XMLParsingTests.swift"
      ],
      "target_dependencies" : [
        "XMLParsing"
      ],
      "type" : "test"
    },
    {
      "c99name" : "XMLParsing",
      "module_type" : "SwiftTarget",
      "name" : "XMLParsing",
      "path" : "Sources/XMLParsing",
      "product_memberships" : [
        "XMLParsing"
      ],
      "sources" : [
        "Decoder/DecodingErrorExtension.swift",
        "Decoder/XMLDecoder.swift",
        "Decoder/XMLDecodingStorage.swift",
        "Decoder/XMLKeyedDecodingContainer.swift",
        "Decoder/XMLUnkeyedDecodingContainer.swift",
        "Encoder/EncodingErrorExtension.swift",
        "Encoder/XMLEncoder.swift",
        "Encoder/XMLEncodingStorage.swift",
        "Encoder/XMLReferencingEncoder.swift",
        "ISO8601DateFormatter.swift",
        "XMLKey.swift",
        "XMLStackParser.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
Done.