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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 LocaleSupport, reference main (c2dc01), with Swift 6.0 for macOS (SPM) on 4 Nov 2024 10:07:11 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/richardpiazza/LocaleSupport.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/richardpiazza/LocaleSupport
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at c2dc014 LocalizedStringConvertible (#10)
Cloned https://github.com/richardpiazza/LocaleSupport.git
Revision (git rev-parse @):
c2dc014d8ae8befc54a79f34dce7d23f3d6bef91
SUCCESS checkout https://github.com/richardpiazza/LocaleSupport.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": "localesupport",
      "name": "LocaleSupport",
      "url": "https://github.com/richardpiazza/LocaleSupport.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/LocaleSupport",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/richardpiazza/LocaleSupport.git
[1/686] Fetching localesupport
Fetched https://github.com/richardpiazza/LocaleSupport.git from cache (0.87s)
Creating working copy for https://github.com/richardpiazza/LocaleSupport.git
Working copy of https://github.com/richardpiazza/LocaleSupport.git resolved at main (c2dc014)
warning: '.resolve-product-dependencies': dependency 'localesupport' 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/richardpiazza/LocaleSupport.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
[3/9] Compiling LocaleSupport ScriptCode.swift
[4/9] Compiling LocaleSupport RegionCode.swift
/Users/admin/builder/spi-builder-workspace/Sources/LocaleSupport/RegionCode.swift:262:23: warning: static property 'default' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
260 |     case ZW
261 |
262 |     public static var `default`: Self = .US
    |                       |- warning: static property 'default' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'default' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'default' 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
263 | }
264 |
[5/9] Compiling LocaleSupport LocaleSupportConfiguration.swift
/Users/admin/builder/spi-builder-workspace/Sources/LocaleSupport/LocaleSupportConfiguration.swift:7:23: warning: static property 'defaultIndicators' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
5 |
6 |     /// Characters that will be prepended/appended to any default `LocalizedStringConvertible` implementation.
7 |     public static var defaultIndicators: (prefix: Character, suffix: Character)?
  |                       |- warning: static property 'defaultIndicators' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  |                       |- note: convert 'defaultIndicators' to a 'let' constant to make 'Sendable' shared state immutable
  |                       |- note: annotate 'defaultIndicators' 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
8 | }
9 |
[6/9] Compiling LocaleSupport Locale+LocaleSupport.swift
/Users/admin/builder/spi-builder-workspace/Sources/LocaleSupport/Locale+LocaleSupport.swift:100:1: warning: extension declares a conformance of imported type 'Locale' to imported protocol 'Identifiable'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
 98 | }
 99 |
100 | extension Locale: Identifiable {
    | |- warning: extension declares a conformance of imported type 'Locale' to imported protocol 'Identifiable'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
101 |     public var id: String { identifier }
102 | }
[7/9] Compiling LocaleSupport LanguageCode.swift
/Users/admin/builder/spi-builder-workspace/Sources/LocaleSupport/LanguageCode.swift:602:23: warning: static property 'default' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
600 |     case zza
601 |
602 |     public static var `default`: Self = .en
    |                       |- warning: static property 'default' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'default' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'default' 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
603 | }
604 |
[8/9] Compiling LocaleSupport LocalizedStringConvertible.swift
/Users/admin/builder/spi-builder-workspace/Sources/LocaleSupport/LocaleSupportConfiguration.swift:7:23: warning: static property 'defaultIndicators' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
5 |
6 |     /// Characters that will be prepended/appended to any default `LocalizedStringConvertible` implementation.
7 |     public static var defaultIndicators: (prefix: Character, suffix: Character)?
  |                       |- warning: static property 'defaultIndicators' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  |                       |- note: convert 'defaultIndicators' to a 'let' constant to make 'Sendable' shared state immutable
  |                       |- note: annotate 'defaultIndicators' 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
8 | }
9 |
[9/9] Emitting module LocaleSupport
/Users/admin/builder/spi-builder-workspace/Sources/LocaleSupport/LanguageCode.swift:602:23: warning: static property 'default' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
600 |     case zza
601 |
602 |     public static var `default`: Self = .en
    |                       |- warning: static property 'default' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'default' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'default' 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
603 | }
604 |
/Users/admin/builder/spi-builder-workspace/Sources/LocaleSupport/Locale+LocaleSupport.swift:100:1: warning: extension declares a conformance of imported type 'Locale' to imported protocol 'Identifiable'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
 98 | }
 99 |
100 | extension Locale: Identifiable {
    | |- warning: extension declares a conformance of imported type 'Locale' to imported protocol 'Identifiable'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
101 |     public var id: String { identifier }
102 | }
/Users/admin/builder/spi-builder-workspace/Sources/LocaleSupport/LocaleSupportConfiguration.swift:7:23: warning: static property 'defaultIndicators' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
5 |
6 |     /// Characters that will be prepended/appended to any default `LocalizedStringConvertible` implementation.
7 |     public static var defaultIndicators: (prefix: Character, suffix: Character)?
  |                       |- warning: static property 'defaultIndicators' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  |                       |- note: convert 'defaultIndicators' to a 'let' constant to make 'Sendable' shared state immutable
  |                       |- note: annotate 'defaultIndicators' 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
8 | }
9 |
/Users/admin/builder/spi-builder-workspace/Sources/LocaleSupport/RegionCode.swift:262:23: warning: static property 'default' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
260 |     case ZW
261 |
262 |     public static var `default`: Self = .US
    |                       |- warning: static property 'default' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'default' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'default' 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
263 | }
264 |
Build complete! (8.13s)
Build complete.
{
  "default_localization" : "en",
  "dependencies" : [
  ],
  "manifest_display_name" : "LocaleSupport",
  "name" : "LocaleSupport",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "12.0"
    },
    {
      "name" : "tvos",
      "version" : "12.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "LocaleSupport",
      "targets" : [
        "LocaleSupport"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "LocaleSupportTests",
      "module_type" : "SwiftTarget",
      "name" : "LocaleSupportTests",
      "path" : "Tests/LocaleSupportTests",
      "resources" : [
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Tests/LocaleSupportTests/Resources/en.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "en"
            }
          }
        }
      ],
      "sources" : [
        "LocalizedStringConvertibleTests.swift",
        "LocalizedStrings.swift"
      ],
      "target_dependencies" : [
        "LocaleSupport"
      ],
      "type" : "test"
    },
    {
      "c99name" : "LocaleSupport",
      "module_type" : "SwiftTarget",
      "name" : "LocaleSupport",
      "path" : "Sources/LocaleSupport",
      "product_memberships" : [
        "LocaleSupport"
      ],
      "sources" : [
        "LanguageCode.swift",
        "Locale+LocaleSupport.swift",
        "LocaleSupportConfiguration.swift",
        "LocalizedStringConvertible.swift",
        "RegionCode.swift",
        "ScriptCode.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
Done.