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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 SwiftyTimber with Swift 6.0 for macOS (SPM).

Swift 6 data race errors: 1

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/iballan/SwiftyTimber.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/iballan/SwiftyTimber
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 142b11e Update ReadMe
Cloned https://github.com/iballan/SwiftyTimber.git
Revision (git rev-parse @):
142b11e82327cd37c9e740323e7604f4ec956c59
SUCCESS checkout https://github.com/iballan/SwiftyTimber.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/iballan/SwiftyTimber.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...
[0/2] Write sources
[1/2] Write swift-version-6F35C1178C84523A.txt
[3/6] Compiling SwiftyTimber TimberTree.swift
[4/6] Compiling SwiftyTimber Timber.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyTimber/Timber.swift:37:23: warning: static property 'shared' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 35 |     ///
 36 |     /// For local usage please create a separate instance of the logger.
 37 |     public static var shared = Timber()
    |                       |- warning: static property 'shared' 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 'shared' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- 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
 38 |
 39 |     private var forest: [TimberTree] = []
[5/6] Compiling SwiftyTimber TimberDebugTree.swift
[6/6] Emitting module SwiftyTimber
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyTimber/Timber.swift:37:23: warning: static property 'shared' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 35 |     ///
 36 |     /// For local usage please create a separate instance of the logger.
 37 |     public static var shared = Timber()
    |                       |- warning: static property 'shared' 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 'shared' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- 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
 38 |
 39 |     private var forest: [TimberTree] = []
Build complete! (17.70s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftyTimber",
  "name" : "SwiftyTimber",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "11.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftyTimber",
      "targets" : [
        "SwiftyTimber"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "SwiftyTimber",
      "module_type" : "SwiftTarget",
      "name" : "SwiftyTimber",
      "path" : "Sources/SwiftyTimber",
      "product_memberships" : [
        "SwiftyTimber"
      ],
      "sources" : [
        "Timber.swift",
        "TimberDebugTree.swift",
        "TimberTree.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.8"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.