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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 LoggingKit, reference master (1f4e4b), with Swift 6.0 for macOS (SPM) on 1 Nov 2024 10:28:14 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/alexanderwe/LoggingKit.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/alexanderwe/LoggingKit
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 1f4e4b7 Merge branch 'release/v3.0.0'
Cloned https://github.com/alexanderwe/LoggingKit.git
Revision (git rev-parse @):
1f4e4b72b6ed04fb03b3aec0cdc14abd53499585
SUCCESS checkout https://github.com/alexanderwe/LoggingKit.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": "loggingkit",
      "name": "LoggingKit",
      "url": "https://github.com/alexanderwe/LoggingKit.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/LoggingKit",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/alexanderwe/LoggingKit.git
[1/277] Fetching loggingkit
Fetched https://github.com/alexanderwe/LoggingKit.git from cache (0.99s)
Creating working copy for https://github.com/alexanderwe/LoggingKit.git
Working copy of https://github.com/alexanderwe/LoggingKit.git resolved at master (1f4e4b7)
warning: '.resolve-product-dependencies': dependency 'loggingkit' 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/alexanderwe/LoggingKit.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
[3/8] Compiling LoggingKit LogService.swift
/Users/admin/builder/spi-builder-workspace/Sources/LogService.swift:36:24: warning: static property 'providers' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 34 | public final class LogService {
 35 |
 36 |     private static var providers = [LogProvider]()
    |                        |- warning: static property 'providers' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'providers' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'providers' 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
 37 |
 38 |     /// Singleton instance of the log service
/Users/admin/builder/spi-builder-workspace/Sources/LogService.swift:39:23: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'LogService' may have shared mutable state; this is an error in the Swift 6 language mode
 32 | ///
 33 | /// Responsible for distributing the log messages to the log providers
 34 | public final class LogService {
    |                    `- note: class 'LogService' does not conform to the 'Sendable' protocol
 35 |
 36 |     private static var providers = [LogProvider]()
 37 |
 38 |     /// Singleton instance of the log service
 39 |     public static let shared = LogService(providers: providers)
    |                       |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'LogService' 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
 40 |
 41 |     private init(providers: [LogProvider]) {
[4/8] Compiling LoggingKit LogCategory.swift
/Users/admin/builder/spi-builder-workspace/Sources/LogCategory.swift:16:12: warning: var 'LoggingCategories' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
14 | //swiftlint:disable identifier_name
15 | // Default log categories container
16 | public var LoggingCategories = LogCategories()
   |            |- warning: var 'LoggingCategories' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'LoggingCategories' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'LoggingCategories' 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
17 | //swiftlint:enable identifier_name
18 |
[5/8] Compiling LoggingKit Combine+LoggingKit.swift
/Users/admin/builder/spi-builder-workspace/Sources/LogService.swift:39:23: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'LogService' may have shared mutable state; this is an error in the Swift 6 language mode
 32 | ///
 33 | /// Responsible for distributing the log messages to the log providers
 34 | public final class LogService {
    |                    `- note: class 'LogService' does not conform to the 'Sendable' protocol
 35 |
 36 |     private static var providers = [LogProvider]()
 37 |
 38 |     /// Singleton instance of the log service
 39 |     public static let shared = LogService(providers: providers)
    |                       |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'LogService' 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
 40 |
 41 |     private init(providers: [LogProvider]) {
[6/8] Compiling LoggingKit OSLogProvider.swift
/Users/admin/builder/spi-builder-workspace/Sources/LogCategory.swift:16:12: warning: var 'LoggingCategories' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
14 | //swiftlint:disable identifier_name
15 | // Default log categories container
16 | public var LoggingCategories = LogCategories()
   |            |- warning: var 'LoggingCategories' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'LoggingCategories' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'LoggingCategories' 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
17 | //swiftlint:enable identifier_name
18 |
[7/8] Compiling LoggingKit LogType.swift
[8/8] Emitting module LoggingKit
/Users/admin/builder/spi-builder-workspace/Sources/LogCategory.swift:16:12: warning: var 'LoggingCategories' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
14 | //swiftlint:disable identifier_name
15 | // Default log categories container
16 | public var LoggingCategories = LogCategories()
   |            |- warning: var 'LoggingCategories' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'LoggingCategories' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'LoggingCategories' 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
17 | //swiftlint:enable identifier_name
18 |
/Users/admin/builder/spi-builder-workspace/Sources/LogService.swift:36:24: warning: static property 'providers' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 34 | public final class LogService {
 35 |
 36 |     private static var providers = [LogProvider]()
    |                        |- warning: static property 'providers' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'providers' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'providers' 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
 37 |
 38 |     /// Singleton instance of the log service
/Users/admin/builder/spi-builder-workspace/Sources/LogService.swift:39:23: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'LogService' may have shared mutable state; this is an error in the Swift 6 language mode
 32 | ///
 33 | /// Responsible for distributing the log messages to the log providers
 34 | public final class LogService {
    |                    `- note: class 'LogService' does not conform to the 'Sendable' protocol
 35 |
 36 |     private static var providers = [LogProvider]()
 37 |
 38 |     /// Singleton instance of the log service
 39 |     public static let shared = LogService(providers: providers)
    |                       |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'LogService' 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
 40 |
 41 |     private init(providers: [LogProvider]) {
Build complete! (6.64s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "LoggingKit",
  "name" : "LoggingKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "10.0"
    },
    {
      "name" : "tvos",
      "version" : "10.0"
    },
    {
      "name" : "watchos",
      "version" : "3.0"
    },
    {
      "name" : "macos",
      "version" : "10.12"
    }
  ],
  "products" : [
    {
      "name" : "LoggingKit",
      "targets" : [
        "LoggingKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LoggingKitTests",
      "module_type" : "SwiftTarget",
      "name" : "LoggingKitTests",
      "path" : "Tests",
      "sources" : [
        "LinuxMain.swift",
        "LoggingKitTests.swift",
        "OSLogProviderTests.swift"
      ],
      "target_dependencies" : [
        "LoggingKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "LoggingKit",
      "module_type" : "SwiftTarget",
      "name" : "LoggingKit",
      "path" : "Sources",
      "product_memberships" : [
        "LoggingKit"
      ],
      "sources" : [
        "Combine/Combine+LoggingKit.swift",
        "LogCategory.swift",
        "LogService.swift",
        "LogType.swift",
        "Providers/OSLogProvider.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Done.