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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 DeltaLogger, reference main (bb2c44), with Swift 6.0 for macOS (SPM) on 2 Nov 2024 22:16:25 UTC.

Swift 6 data race errors: 1

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/stackotter/delta-logger.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/stackotter/delta-logger
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at bb2c440 Update README.md
Cloned https://github.com/stackotter/delta-logger.git
Revision (git rev-parse @):
bb2c4402569e93957795ed166d737d42cdf8d534
SUCCESS checkout https://github.com/stackotter/delta-logger.git at main
Fetching https://github.com/apple/swift-log
[1/3660] Fetching swift-log
Fetched https://github.com/apple/swift-log from cache (1.14s)
Computing version for https://github.com/apple/swift-log
Computed https://github.com/apple/swift-log at 1.4.2 (0.65s)
Creating working copy for https://github.com/apple/swift-log
Working copy of https://github.com/apple/swift-log resolved at 1.4.2
========================================
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": "delta-logger",
      "name": "DeltaLogger",
      "url": "https://github.com/stackotter/delta-logger.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/delta-logger",
      "dependencies": [
        {
          "identity": "swift-log",
          "name": "swift-log",
          "url": "https://github.com/apple/swift-log",
          "version": "1.6.1",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-log",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/stackotter/delta-logger.git
[1/31] Fetching delta-logger
Fetched https://github.com/stackotter/delta-logger.git from cache (0.64s)
Fetching https://github.com/apple/swift-log from cache
Fetched https://github.com/apple/swift-log from cache (0.48s)
Computing version for https://github.com/apple/swift-log
Computed https://github.com/apple/swift-log at 1.6.1 (0.47s)
Creating working copy for https://github.com/apple/swift-log
Working copy of https://github.com/apple/swift-log resolved at 1.6.1
Creating working copy for https://github.com/stackotter/delta-logger.git
Working copy of https://github.com/stackotter/delta-logger.git resolved at main (bb2c440)
warning: '.resolve-product-dependencies': dependency 'delta-logger' is not used by any target
Found 1 product dependencies
  - swift-log
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/stackotter/delta-logger.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...
[0/3] Write sources
[2/3] Write swift-version--7754E27361AE5C74.txt
[4/7] Emitting module Logging
[5/7] Compiling Logging LogHandler.swift
[6/7] Compiling Logging Locks.swift
[7/7] Compiling Logging Logging.swift
[8/11] Compiling DeltaLogger LogLevel.swift
/Users/admin/builder/spi-builder-workspace/Sources/DeltaLogger/LogLevel.swift:12:22: warning: static property 'errorLevels' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
10 |
11 | extension Logger.Level {
12 |   private static var errorLevels: [Logger.Level] = [
   |                      |- warning: static property 'errorLevels' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                      |- note: convert 'errorLevels' to a 'let' constant to make 'Sendable' shared state immutable
   |                      |- note: annotate 'errorLevels' 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 |     .error,
14 |     .critical]
[9/11] Compiling DeltaLogger Logger.swift
[10/11] Compiling DeltaLogger DeltaLogHandler.swift
[11/11] Emitting module DeltaLogger
/Users/admin/builder/spi-builder-workspace/Sources/DeltaLogger/LogLevel.swift:12:22: warning: static property 'errorLevels' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
10 |
11 | extension Logger.Level {
12 |   private static var errorLevels: [Logger.Level] = [
   |                      |- warning: static property 'errorLevels' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                      |- note: convert 'errorLevels' to a 'let' constant to make 'Sendable' shared state immutable
   |                      |- note: annotate 'errorLevels' 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 |     .error,
14 |     .critical]
Build complete! (7.73s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-log",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.4.2",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-log"
    }
  ],
  "manifest_display_name" : "DeltaLogger",
  "name" : "DeltaLogger",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "DeltaLogger",
      "targets" : [
        "DeltaLogger"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "DeltaLoggerTests",
      "module_type" : "SwiftTarget",
      "name" : "DeltaLoggerTests",
      "path" : "Tests/DeltaLoggerTests",
      "sources" : [
        "DeltaLoggerTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "DeltaLogger"
      ],
      "type" : "test"
    },
    {
      "c99name" : "DeltaLogger",
      "module_type" : "SwiftTarget",
      "name" : "DeltaLogger",
      "path" : "Sources/DeltaLogger",
      "product_dependencies" : [
        "Logging"
      ],
      "product_memberships" : [
        "DeltaLogger"
      ],
      "sources" : [
        "DeltaLogHandler.swift",
        "LogLevel.swift",
        "Logger.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
Done.