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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 RangeTools, reference production (8efcac), with Swift 6.1 for macOS (SPM) on 26 Apr 2025 12:34:49 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: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/RougeWare/Swift-Range-Tools.git
Reference: production
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/RougeWare/Swift-Range-Tools
 * branch            production -> FETCH_HEAD
 * [new branch]      production -> origin/production
HEAD is now at 8efcac7 Merge pull request #4 from RougeWare/feature/upperBoundIsInclusive
Cloned https://github.com/RougeWare/Swift-Range-Tools.git
Revision (git rev-parse @):
8efcac712d0bd765ac903cb9fd27cc49b6b4ce58
SUCCESS checkout https://github.com/RougeWare/Swift-Range-Tools.git at production
========================================
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-range-tools",
      "name": "RangeTools",
      "url": "https://github.com/RougeWare/Swift-Range-Tools.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Swift-Range-Tools",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/RougeWare/Swift-Range-Tools.git
[1/70] Fetching swift-range-tools
Fetched https://github.com/RougeWare/Swift-Range-Tools.git from cache (0.58s)
Creating working copy for https://github.com/RougeWare/Swift-Range-Tools.git
Working copy of https://github.com/RougeWare/Swift-Range-Tools.git resolved at production (8efcac7)
warning: '.resolve-product-dependencies': dependency 'swift-range-tools' 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/RougeWare/Swift-Range-Tools.git
https://github.com/RougeWare/Swift-Range-Tools.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "RangeTools",
  "name" : "RangeTools",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "RangeTools",
      "targets" : [
        "RangeTools"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "RangeToolsTests",
      "module_type" : "SwiftTarget",
      "name" : "RangeToolsTests",
      "path" : "Tests/RangeToolsTests",
      "sources" : [
        "RangeToolsTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "RangeTools"
      ],
      "type" : "test"
    },
    {
      "c99name" : "RangeTools",
      "module_type" : "SwiftTarget",
      "name" : "RangeTools",
      "path" : "Sources/RangeTools",
      "product_memberships" : [
        "RangeTools"
      ],
      "sources" : [
        "Default conformances.swift",
        "RangeProtocol.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
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
[3/5] Emitting module RangeTools
[4/5] Compiling RangeTools Default conformances.swift
[5/5] Compiling RangeTools RangeProtocol.swift
Build complete! (4.02s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "RangeTools",
  "name" : "RangeTools",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "RangeTools",
      "targets" : [
        "RangeTools"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "RangeToolsTests",
      "module_type" : "SwiftTarget",
      "name" : "RangeToolsTests",
      "path" : "Tests/RangeToolsTests",
      "sources" : [
        "RangeToolsTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "RangeTools"
      ],
      "type" : "test"
    },
    {
      "c99name" : "RangeTools",
      "module_type" : "SwiftTarget",
      "name" : "RangeTools",
      "path" : "Sources/RangeTools",
      "product_memberships" : [
        "RangeTools"
      ],
      "sources" : [
        "Default conformances.swift",
        "RangeProtocol.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
Done.