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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 build-kit, reference main (0d9800), with Swift 6.1 for macOS (SPM) on 26 Apr 2025 20:11:46 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/BinaryBirds/build-kit.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/BinaryBirds/build-kit
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 0d9800e license
Cloned https://github.com/BinaryBirds/build-kit.git
Revision (git rev-parse @):
0d9800e89e0e61d8041b3d240232e9b18f2ca7fe
SUCCESS checkout https://github.com/BinaryBirds/build-kit.git at main
Fetching https://github.com/binarybirds/shell-kit
[1/48] Fetching shell-kit
Fetched https://github.com/binarybirds/shell-kit from cache (0.63s)
Computing version for https://github.com/binarybirds/shell-kit
Computed https://github.com/binarybirds/shell-kit at 1.0.1 (1.24s)
Creating working copy for https://github.com/binarybirds/shell-kit
Working copy of https://github.com/binarybirds/shell-kit resolved at 1.0.1
========================================
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": "build-kit",
      "name": "build-kit",
      "url": "https://github.com/BinaryBirds/build-kit.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/build-kit",
      "dependencies": [
        {
          "identity": "shell-kit",
          "name": "shell-kit",
          "url": "https://github.com/binarybirds/shell-kit",
          "version": "1.0.1",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/shell-kit",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/BinaryBirds/build-kit.git
[1/21] Fetching build-kit
Fetched https://github.com/BinaryBirds/build-kit.git from cache (0.63s)
Fetching https://github.com/binarybirds/shell-kit from cache
Fetched https://github.com/binarybirds/shell-kit from cache (0.42s)
Computing version for https://github.com/binarybirds/shell-kit
Computed https://github.com/binarybirds/shell-kit at 1.0.1 (0.47s)
Creating working copy for https://github.com/BinaryBirds/build-kit.git
Working copy of https://github.com/BinaryBirds/build-kit.git resolved at main (0d9800e)
Creating working copy for https://github.com/binarybirds/shell-kit
Working copy of https://github.com/binarybirds/shell-kit resolved at 1.0.1
warning: '.resolve-product-dependencies': dependency 'build-kit' is not used by any target
Found 1 product dependencies
  - shell-kit
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/BinaryBirds/build-kit.git
https://github.com/BinaryBirds/build-kit.git
{
  "dependencies" : [
    {
      "identity" : "shell-kit",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/binarybirds/shell-kit"
    }
  ],
  "manifest_display_name" : "build-kit",
  "name" : "build-kit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "BuildKit",
      "targets" : [
        "BuildKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "BuildKitTests",
      "module_type" : "SwiftTarget",
      "name" : "BuildKitTests",
      "path" : "Tests/BuildKitTests",
      "sources" : [
        "ProjectTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "BuildKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "BuildKit",
      "module_type" : "SwiftTarget",
      "name" : "BuildKit",
      "path" : "Sources/BuildKit",
      "product_dependencies" : [
        "ShellKit"
      ],
      "product_memberships" : [
        "BuildKit"
      ],
      "sources" : [
        "Project.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
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...
[0/3] Write sources
[2/3] Write swift-version-2F0A5646E1D333AE.txt
[4/5] Compiling ShellKit Shell.swift
[5/5] Emitting module ShellKit
[6/7] Compiling BuildKit Project.swift
[7/7] Emitting module BuildKit
Build complete! (4.64s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "shell-kit",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/binarybirds/shell-kit"
    }
  ],
  "manifest_display_name" : "build-kit",
  "name" : "build-kit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "BuildKit",
      "targets" : [
        "BuildKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "BuildKitTests",
      "module_type" : "SwiftTarget",
      "name" : "BuildKitTests",
      "path" : "Tests/BuildKitTests",
      "sources" : [
        "ProjectTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "BuildKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "BuildKit",
      "module_type" : "SwiftTarget",
      "name" : "BuildKit",
      "path" : "Sources/BuildKit",
      "product_dependencies" : [
        "ShellKit"
      ],
      "product_memberships" : [
        "BuildKit"
      ],
      "sources" : [
        "Project.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
Done.