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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 swift-async-queue, reference main (1e9c0d), with Swift 6.1 for macOS (SPM) on 25 Apr 2025 01:53:53 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/dfed/swift-async-queue.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/dfed/swift-async-queue
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 1e9c0dc Add support for Task cancellation (#54)
Cloned https://github.com/dfed/swift-async-queue.git
Revision (git rev-parse @):
1e9c0dc0edddf04fdc45b8aa19802bf327f97771
SUCCESS checkout https://github.com/dfed/swift-async-queue.git at main
========================================
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": "swift-async-queue",
      "name": "swift-async-queue",
      "url": "https://github.com/dfed/swift-async-queue.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-async-queue",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/dfed/swift-async-queue.git
[1/1253] Fetching swift-async-queue
Fetched https://github.com/dfed/swift-async-queue.git from cache (0.76s)
Creating working copy for https://github.com/dfed/swift-async-queue.git
Working copy of https://github.com/dfed/swift-async-queue.git resolved at main (1e9c0dc)
warning: '.resolve-product-dependencies': dependency 'swift-async-queue' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/dfed/swift-async-queue.git
https://github.com/dfed/swift-async-queue.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "swift-async-queue",
  "name" : "swift-async-queue",
  "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"
    },
    {
      "name" : "maccatalyst",
      "version" : "13.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "AsyncQueue",
      "targets" : [
        "AsyncQueue"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "AsyncQueueTests",
      "module_type" : "SwiftTarget",
      "name" : "AsyncQueueTests",
      "path" : "Tests/AsyncQueueTests",
      "sources" : [
        "ActorQueueTests.swift",
        "DeliveryTests.swift",
        "ExpectationTests.swift",
        "FIFOQueueTests.swift",
        "SemaphoreTests.swift",
        "Utilities/Counter.swift",
        "Utilities/Expectation.swift"
      ],
      "target_dependencies" : [
        "AsyncQueue"
      ],
      "type" : "test"
    },
    {
      "c99name" : "AsyncQueue",
      "module_type" : "SwiftTarget",
      "name" : "AsyncQueue",
      "path" : "Sources/AsyncQueue",
      "product_memberships" : [
        "AsyncQueue"
      ],
      "sources" : [
        "ActorQueue.swift",
        "FIFOQueue.swift",
        "Utilities/Delivery.swift",
        "Utilities/Semaphore.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/7] Compiling AsyncQueue Semaphore.swift
[4/7] Compiling AsyncQueue FIFOQueue.swift
[5/7] Compiling AsyncQueue ActorQueue.swift
[6/7] Emitting module AsyncQueue
[7/7] Compiling AsyncQueue Delivery.swift
Build complete! (2.68s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "swift-async-queue",
  "name" : "swift-async-queue",
  "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"
    },
    {
      "name" : "maccatalyst",
      "version" : "13.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "AsyncQueue",
      "targets" : [
        "AsyncQueue"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "AsyncQueueTests",
      "module_type" : "SwiftTarget",
      "name" : "AsyncQueueTests",
      "path" : "Tests/AsyncQueueTests",
      "sources" : [
        "ActorQueueTests.swift",
        "DeliveryTests.swift",
        "ExpectationTests.swift",
        "FIFOQueueTests.swift",
        "SemaphoreTests.swift",
        "Utilities/Counter.swift",
        "Utilities/Expectation.swift"
      ],
      "target_dependencies" : [
        "AsyncQueue"
      ],
      "type" : "test"
    },
    {
      "c99name" : "AsyncQueue",
      "module_type" : "SwiftTarget",
      "name" : "AsyncQueue",
      "path" : "Sources/AsyncQueue",
      "product_memberships" : [
        "AsyncQueue"
      ],
      "sources" : [
        "ActorQueue.swift",
        "FIFOQueue.swift",
        "Utilities/Delivery.swift",
        "Utilities/Semaphore.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
Done.