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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 SwiftAsyncAssert, reference main (40d9c1), with Swift 6.1 for macOS (SPM) on 30 Apr 2025 05:49:39 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 -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures

Build Log

========================================
RunAll
========================================
Builder version: 4.61.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/angu-software/SwiftAsyncAssert.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/angu-software/SwiftAsyncAssert
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 40d9c1c Account for possible data races when evaluating Assert expressions when throwing an error to be compatible with Swift 6.0
Cloned https://github.com/angu-software/SwiftAsyncAssert.git
Revision (git rev-parse @):
40d9c1c11ad9ae25d0870b284b43745abf291b2f
SUCCESS checkout https://github.com/angu-software/SwiftAsyncAssert.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/angu-software/SwiftAsyncAssert.git
https://github.com/angu-software/SwiftAsyncAssert.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftAsyncAssert",
  "name" : "SwiftAsyncAssert",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftAsyncAssert",
      "targets" : [
        "SwiftAsyncAssert"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftAsyncAssertTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftAsyncAssertTests",
      "path" : "Tests/SwiftAsyncAssertTests",
      "sources" : [
        "AssertExpressionEvaluatorTest.swift",
        "SwiftAsyncAssertTests.swift",
        "TestingError.swift",
        "ThrownErrorFormatterTests.swift"
      ],
      "target_dependencies" : [
        "SwiftAsyncAssert"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftAsyncAssert",
      "module_type" : "SwiftTarget",
      "name" : "SwiftAsyncAssert",
      "path" : "Sources/SwiftAsyncAssert",
      "product_memberships" : [
        "SwiftAsyncAssert"
      ],
      "sources" : [
        "AssertExpressionEvaluator.swift",
        "SwiftAsyncAssert.swift",
        "ThrownErrorFormatter.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
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 -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/6] Compiling SwiftAsyncAssert ThrownErrorFormatter.swift
[4/6] Compiling SwiftAsyncAssert SwiftAsyncAssert.swift
[5/6] Emitting module SwiftAsyncAssert
[6/6] Compiling SwiftAsyncAssert AssertExpressionEvaluator.swift
Build complete! (10.13s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftAsyncAssert",
  "name" : "SwiftAsyncAssert",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftAsyncAssert",
      "targets" : [
        "SwiftAsyncAssert"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftAsyncAssertTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftAsyncAssertTests",
      "path" : "Tests/SwiftAsyncAssertTests",
      "sources" : [
        "AssertExpressionEvaluatorTest.swift",
        "SwiftAsyncAssertTests.swift",
        "TestingError.swift",
        "ThrownErrorFormatterTests.swift"
      ],
      "target_dependencies" : [
        "SwiftAsyncAssert"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftAsyncAssert",
      "module_type" : "SwiftTarget",
      "name" : "SwiftAsyncAssert",
      "path" : "Sources/SwiftAsyncAssert",
      "product_memberships" : [
        "SwiftAsyncAssert"
      ],
      "sources" : [
        "AssertExpressionEvaluator.swift",
        "SwiftAsyncAssert.swift",
        "ThrownErrorFormatter.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
Done.