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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 Mutex, reference main (c7c477), with Swift 5.10 for macOS (SPM) on 18 Apr 2025 04:23:50 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.60.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swhitty/swift-mutex.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/swhitty/swift-mutex
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at c7c4773 Merge pull request #4 from swhitty/swift-6.1
Cloned https://github.com/swhitty/swift-mutex.git
Revision (git rev-parse @):
c7c4773090f8e8fc3998289b64a10d88845516b4
SUCCESS checkout https://github.com/swhitty/swift-mutex.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.10
Building package at path:  $PWD
https://github.com/swhitty/swift-mutex.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-33747A42983211AE.txt
[3/5] Emitting module Mutex
[4/5] Compiling Mutex Mutex.swift
[5/5] Compiling Mutex AllocatedLock.swift
Build complete! (2.84s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Mutex",
  "name" : "Mutex",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "Mutex",
      "targets" : [
        "Mutex"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MutexTests",
      "module_type" : "SwiftTarget",
      "name" : "MutexTests",
      "path" : "Tests",
      "sources" : [
        "AllocatedLock+Unsafe.swift",
        "AllocatedLockTests.swift",
        "AllocatedLockXCTests.swift",
        "MutexTests.swift",
        "MutexXCTests.swift"
      ],
      "target_dependencies" : [
        "Mutex"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Mutex",
      "module_type" : "SwiftTarget",
      "name" : "Mutex",
      "path" : "Sources",
      "product_memberships" : [
        "Mutex"
      ],
      "sources" : [
        "AllocatedLock.swift",
        "Mutex.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
Done.