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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 ISO639 with Swift 6.0 for macOS (SPM).

Swift 6 data race errors: 2

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.40.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/SwiftPackageRepository/ISO639.swift.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/SwiftPackageRepository/ISO639.swift
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 92cb77c added base ukraine
Cloned https://github.com/SwiftPackageRepository/ISO639.swift.git
Revision (git rev-parse @):
92cb77c9b0da6ec1d9ad5fd8043257c90ccc0a65
SUCCESS checkout https://github.com/SwiftPackageRepository/ISO639.swift.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/SwiftPackageRepository/ISO639.swift.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/22] Copying Localizable.strings
[15/22] Copying Info.plist
[17/22] Copying Localizable.strings
[17/22] Write sources
[19/22] Copying Localizable.strings
[21/22] Write swift-version-6F35C1178C84523A.txt
[23/39] Compiling ISO639 LetterCase.swift
/Users/admin/builder/spi-builder-workspace/Sources/ISO639/LocaleHelper.swift:11:23: warning: static property 'currentLanguageCode' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 9 |
10 | internal struct LocaleHelper {
11 |     public static var currentLanguageCode: String? = Locale.current.languageCode?.cutLanguageCode()
   |                       |- warning: static property 'currentLanguageCode' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'currentLanguageCode' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'currentLanguageCode' 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
12 |     public static var preferredLanguageCodes: [String] = Locale.preferredLanguages.map { $0.cutLanguageCode() }
13 | }
/Users/admin/builder/spi-builder-workspace/Sources/ISO639/LocaleHelper.swift:12:23: warning: static property 'preferredLanguageCodes' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
10 | internal struct LocaleHelper {
11 |     public static var currentLanguageCode: String? = Locale.current.languageCode?.cutLanguageCode()
12 |     public static var preferredLanguageCodes: [String] = Locale.preferredLanguages.map { $0.cutLanguageCode() }
   |                       |- warning: static property 'preferredLanguageCodes' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'preferredLanguageCodes' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'preferredLanguageCodes' 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
13 | }
14 |
[24/39] Compiling ISO639 LocaleHelper.swift
/Users/admin/builder/spi-builder-workspace/Sources/ISO639/LocaleHelper.swift:11:23: warning: static property 'currentLanguageCode' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 9 |
10 | internal struct LocaleHelper {
11 |     public static var currentLanguageCode: String? = Locale.current.languageCode?.cutLanguageCode()
   |                       |- warning: static property 'currentLanguageCode' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'currentLanguageCode' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'currentLanguageCode' 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
12 |     public static var preferredLanguageCodes: [String] = Locale.preferredLanguages.map { $0.cutLanguageCode() }
13 | }
/Users/admin/builder/spi-builder-workspace/Sources/ISO639/LocaleHelper.swift:12:23: warning: static property 'preferredLanguageCodes' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
10 | internal struct LocaleHelper {
11 |     public static var currentLanguageCode: String? = Locale.current.languageCode?.cutLanguageCode()
12 |     public static var preferredLanguageCodes: [String] = Locale.preferredLanguages.map { $0.cutLanguageCode() }
   |                       |- warning: static property 'preferredLanguageCodes' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'preferredLanguageCodes' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'preferredLanguageCodes' 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
13 | }
14 |
[25/39] Compiling ISO639 WritingSystem.swift
[26/40] Compiling ISO639 LanguageSymbols+Characters.swift
[27/40] Compiling ISO639 LanguageSymbols.swift
[28/40] Compiling ISO639 Language+All.swift
/Users/admin/builder/spi-builder-workspace/Sources/ISO639/LocaleHelper.swift:11:23: warning: static property 'currentLanguageCode' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 9 |
10 | internal struct LocaleHelper {
11 |     public static var currentLanguageCode: String? = Locale.current.languageCode?.cutLanguageCode()
   |                       |- warning: static property 'currentLanguageCode' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'currentLanguageCode' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'currentLanguageCode' 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
12 |     public static var preferredLanguageCodes: [String] = Locale.preferredLanguages.map { $0.cutLanguageCode() }
13 | }
/Users/admin/builder/spi-builder-workspace/Sources/ISO639/LocaleHelper.swift:12:23: warning: static property 'preferredLanguageCodes' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
10 | internal struct LocaleHelper {
11 |     public static var currentLanguageCode: String? = Locale.current.languageCode?.cutLanguageCode()
12 |     public static var preferredLanguageCodes: [String] = Locale.preferredLanguages.map { $0.cutLanguageCode() }
   |                       |- warning: static property 'preferredLanguageCodes' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'preferredLanguageCodes' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'preferredLanguageCodes' 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
13 | }
14 |
[29/40] Compiling ISO639 Language+Extensions.swift
/Users/admin/builder/spi-builder-workspace/Sources/ISO639/LocaleHelper.swift:11:23: warning: static property 'currentLanguageCode' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 9 |
10 | internal struct LocaleHelper {
11 |     public static var currentLanguageCode: String? = Locale.current.languageCode?.cutLanguageCode()
   |                       |- warning: static property 'currentLanguageCode' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'currentLanguageCode' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'currentLanguageCode' 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
12 |     public static var preferredLanguageCodes: [String] = Locale.preferredLanguages.map { $0.cutLanguageCode() }
13 | }
/Users/admin/builder/spi-builder-workspace/Sources/ISO639/LocaleHelper.swift:12:23: warning: static property 'preferredLanguageCodes' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
10 | internal struct LocaleHelper {
11 |     public static var currentLanguageCode: String? = Locale.current.languageCode?.cutLanguageCode()
12 |     public static var preferredLanguageCodes: [String] = Locale.preferredLanguages.map { $0.cutLanguageCode() }
   |                       |- warning: static property 'preferredLanguageCodes' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'preferredLanguageCodes' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'preferredLanguageCodes' 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
13 | }
14 |
[30/40] Compiling ISO639 Language.swift
[31/40] Compiling ISO639 LanguageArray+Extensions.swift
[32/40] Emitting module ISO639
/Users/admin/builder/spi-builder-workspace/Sources/ISO639/LocaleHelper.swift:11:23: warning: static property 'currentLanguageCode' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 9 |
10 | internal struct LocaleHelper {
11 |     public static var currentLanguageCode: String? = Locale.current.languageCode?.cutLanguageCode()
   |                       |- warning: static property 'currentLanguageCode' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'currentLanguageCode' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'currentLanguageCode' 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
12 |     public static var preferredLanguageCodes: [String] = Locale.preferredLanguages.map { $0.cutLanguageCode() }
13 | }
/Users/admin/builder/spi-builder-workspace/Sources/ISO639/LocaleHelper.swift:12:23: warning: static property 'preferredLanguageCodes' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
10 | internal struct LocaleHelper {
11 |     public static var currentLanguageCode: String? = Locale.current.languageCode?.cutLanguageCode()
12 |     public static var preferredLanguageCodes: [String] = Locale.preferredLanguages.map { $0.cutLanguageCode() }
   |                       |- warning: static property 'preferredLanguageCodes' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: convert 'preferredLanguageCodes' to a 'let' constant to make 'Sendable' shared state immutable
   |                       |- note: annotate 'preferredLanguageCodes' 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
13 | }
14 |
[33/40] Compiling ISO639 ChineseLanguageSymbols.swift
[34/40] Compiling ISO639 JapaneseLanguageSymbols.swift
[35/40] Compiling ISO639 Character+Extensions.swift
[36/40] Compiling ISO639 CharacterArray+Extensions.swift
[37/40] Compiling ISO639 ISO639Alpha1.swift
[38/40] Compiling ISO639 ISO639Alpha2.swift
[39/40] Compiling ISO639 String+Extensions.swift
[40/40] Compiling ISO639 resource_bundle_accessor.swift
Build complete! (20.56s)
warning: 'spi-builder-workspace': found 1 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
    /Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/Localizable.strings
Build complete.
{
  "default_localization" : "en",
  "dependencies" : [
  ],
  "manifest_display_name" : "ISO639",
  "name" : "ISO639",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "ISO639",
      "targets" : [
        "ISO639"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ISO639Tests",
      "module_type" : "SwiftTarget",
      "name" : "ISO639Tests",
      "path" : "Tests/ISO639Tests",
      "sources" : [
        "GenerateResourcesTests.swift",
        "LanguageCharactersTests.swift",
        "LanguageTests.swift",
        "String+ExtensionsTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "ISO639"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ISO639",
      "module_type" : "SwiftTarget",
      "name" : "ISO639",
      "path" : "Sources/ISO639",
      "product_memberships" : [
        "ISO639"
      ],
      "resources" : [
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/fi.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "fi"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/ru.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "ru"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/pl.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "pl"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/es.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "es"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/uk.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "uk"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/it.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "it"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/da.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "da"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/pt.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "pt"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/ro.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "ro"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/el.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "el"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/nl.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "nl"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/de.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "de"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/fr.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "fr"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/ja.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "ja"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/bg.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "bg"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/cs.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "cs"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/en.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "en"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/lv.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "lv"
            }
          }
        },
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/ISO639/Resources/zh.lproj/Localizable.strings",
          "rule" : {
            "process" : {
              "localization" : "zh"
            }
          }
        }
      ],
      "sources" : [
        "Character+Extensions.swift",
        "CharacterArray+Extensions.swift",
        "ISO639Alpha1.swift",
        "ISO639Alpha2.swift",
        "Language+All.swift",
        "Language+Extensions.swift",
        "Language.swift",
        "LanguageArray+Extensions.swift",
        "LanguageSymbols+Characters.swift",
        "LanguageSymbols.swift",
        "LanguageSymbols/ChineseLanguageSymbols.swift",
        "LanguageSymbols/JapaneseLanguageSymbols.swift",
        "LetterCase.swift",
        "LocaleHelper.swift",
        "String+Extensions.swift",
        "WritingSystem.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.4"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.