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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 Cast, reference main (ff40c9), with Swift 6.0 for macOS (SPM) on 16 Sep 2024 19:45:51 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.0.0-Release.Candidate.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.53.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Catterwaul/Cast.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Catterwaul/Cast
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at ff40c9c Make `Error.init` public
Cloned https://github.com/Catterwaul/Cast.git
Revision (git rev-parse @):
ff40c9cb95e6070a9c5af8adf095e52efa1d13a9
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/Catterwaul/Cast.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/Catterwaul/Cast.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.0.0-Release.Candidate.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
[1/1] Compiling plugin Swift-DocC
[2/2] Compiling plugin Swift-DocC Preview
Building for debugging...
[2/4] Write sources
[3/4] Write swift-version-117DEE11B69C53C9.txt
[5/7] Compiling Cast forceCastError.swift
[6/7] Emitting module Cast
[7/7] Compiling Cast Error.swift
Build complete! (21.96s)
Fetching https://github.com/swiftlang/swift-docc-plugin
[1/2038] Fetching swift-docc-plugin
Fetched https://github.com/swiftlang/swift-docc-plugin from cache (1.25s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3076] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (1.25s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (0.69s)
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
Creating working copy for https://github.com/swiftlang/swift-docc-plugin
Working copy of https://github.com/swiftlang/swift-docc-plugin resolved at main (85e4bb4)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-docc-plugin",
      "requirement" : {
        "branch" : [
          "main"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/swiftlang/swift-docc-plugin"
    }
  ],
  "manifest_display_name" : "Cast",
  "name" : "Cast",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "Cast",
      "targets" : [
        "Cast"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "Cast_Tests",
      "module_type" : "SwiftTarget",
      "name" : "Cast.Tests",
      "path" : "Tests",
      "sources" : [
        "CastTests.swift",
        "ForceCastErrorTests.swift"
      ],
      "target_dependencies" : [
        "Cast"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Cast",
      "module_type" : "SwiftTarget",
      "name" : "Cast",
      "path" : "Sources",
      "product_memberships" : [
        "Cast"
      ],
      "sources" : [
        "Error.swift",
        "forceCastError.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
Done.