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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 SpecialString, reference master (7a82d5), with Swift 6.1 for macOS (SPM) on 29 Apr 2025 01:52:07 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-Special-String.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/RougeWare/Swift-Special-String
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 7a82d5b Merge pull request #8 from RougeWare/feature/Concurrency
Cloned https://github.com/RougeWare/Swift-Special-String.git
Revision (git rev-parse @):
7a82d5b07b72aed848b028d3e8bf6d9591ec108a
SUCCESS checkout https://github.com/RougeWare/Swift-Special-String.git at master
========================================
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-special-string",
      "name": "SpecialString",
      "url": "https://github.com/RougeWare/Swift-Special-String.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Swift-Special-String",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/RougeWare/Swift-Special-String.git
[1/74] Fetching swift-special-string
Fetched https://github.com/RougeWare/Swift-Special-String.git from cache (0.58s)
Creating working copy for https://github.com/RougeWare/Swift-Special-String.git
Working copy of https://github.com/RougeWare/Swift-Special-String.git resolved at master (7a82d5b)
warning: '.resolve-product-dependencies': dependency 'swift-special-string' 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-Special-String.git
https://github.com/RougeWare/Swift-Special-String.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SpecialString",
  "name" : "SpecialString",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SpecialString",
      "targets" : [
        "SpecialString"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "SpecialString_dynamic",
      "targets" : [
        "SpecialString"
      ],
      "type" : {
        "library" : [
          "dynamic"
        ]
      }
    },
    {
      "name" : "SpecialStringDynamic",
      "targets" : [
        "SpecialString"
      ],
      "type" : {
        "library" : [
          "dynamic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SpecialStringTests",
      "module_type" : "SwiftTarget",
      "name" : "SpecialStringTests",
      "path" : "Tests/SpecialStringTests",
      "sources" : [
        "Build Test.swift",
        "SpecialStringTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "SpecialString"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SpecialString",
      "module_type" : "SwiftTarget",
      "name" : "SpecialString",
      "path" : "Sources/SpecialString",
      "product_memberships" : [
        "SpecialString",
        "SpecialString_dynamic",
        "SpecialStringDynamic"
      ],
      "sources" : [
        "EssentiallyAString.swift",
        "Premade Special Strings.swift",
        "SpecialString.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
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...
[0/6] Write sources
[1/6] Write swift-version-2F0A5646E1D333AE.txt
[3/10] Compiling SpecialString SpecialString.swift
[4/10] Compiling SpecialString Premade Special Strings.swift
[5/10] Emitting module SpecialString
[6/10] Compiling SpecialString EssentiallyAString.swift
[6/10] Write Objects.LinkFileList
[8/10] Linking libSpecialString_dynamic.dylib
[9/10] Linking libSpecialStringDynamic.dylib
Build complete! (4.85s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SpecialString",
  "name" : "SpecialString",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SpecialString",
      "targets" : [
        "SpecialString"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "SpecialString_dynamic",
      "targets" : [
        "SpecialString"
      ],
      "type" : {
        "library" : [
          "dynamic"
        ]
      }
    },
    {
      "name" : "SpecialStringDynamic",
      "targets" : [
        "SpecialString"
      ],
      "type" : {
        "library" : [
          "dynamic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SpecialStringTests",
      "module_type" : "SwiftTarget",
      "name" : "SpecialStringTests",
      "path" : "Tests/SpecialStringTests",
      "sources" : [
        "Build Test.swift",
        "SpecialStringTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "SpecialString"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SpecialString",
      "module_type" : "SwiftTarget",
      "name" : "SpecialString",
      "path" : "Sources/SpecialString",
      "product_memberships" : [
        "SpecialString",
        "SpecialString_dynamic",
        "SpecialStringDynamic"
      ],
      "sources" : [
        "EssentiallyAString.swift",
        "Premade Special Strings.swift",
        "SpecialString.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Done.