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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 Alley, reference 4.0.1 (e11a9e), with Swift 6.1 for macOS (SPM) on 29 Apr 2025 18:16:16 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: 4.61.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/radianttap/Alley.git
Reference: 4.0.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/radianttap/Alley
 * tag               4.0.1      -> FETCH_HEAD
HEAD is now at e11a9ed Make version badge more readable
Cloned https://github.com/radianttap/Alley.git
Revision (git rev-parse @):
e11a9edb8e64ec1c3fc38cc44095d72f6f497410
SUCCESS checkout https://github.com/radianttap/Alley.git at 4.0.1
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/radianttap/Alley.git
https://github.com/radianttap/Alley.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Alley",
  "name" : "Alley",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "tvos",
      "version" : "15.0"
    },
    {
      "name" : "watchos",
      "version" : "10.0"
    },
    {
      "name" : "macos",
      "version" : "12.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "Alley",
      "targets" : [
        "Alley"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "6"
  ],
  "targets" : [
    {
      "c99name" : "Alley",
      "module_type" : "SwiftTarget",
      "name" : "Alley",
      "path" : "Sources/Alley",
      "product_memberships" : [
        "Alley"
      ],
      "sources" : [
        "Alley.swift",
        "NetworkError-Localized.swift",
        "NetworkError-Retries.swift",
        "NetworkError.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 Alley NetworkError.swift
[4/7] Compiling Alley NetworkError-Retries.swift
[5/7] Emitting module Alley
[6/7] Compiling Alley NetworkError-Localized.swift
[7/7] Compiling Alley Alley.swift
Build complete! (4.54s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Alley",
  "name" : "Alley",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "tvos",
      "version" : "15.0"
    },
    {
      "name" : "watchos",
      "version" : "10.0"
    },
    {
      "name" : "macos",
      "version" : "12.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "Alley",
      "targets" : [
        "Alley"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "6"
  ],
  "targets" : [
    {
      "c99name" : "Alley",
      "module_type" : "SwiftTarget",
      "name" : "Alley",
      "path" : "Sources/Alley",
      "product_memberships" : [
        "Alley"
      ],
      "sources" : [
        "Alley.swift",
        "NetworkError-Localized.swift",
        "NetworkError-Retries.swift",
        "NetworkError.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
Done.