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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 Lazy, reference 1.1.0 (96ff53), with Swift 6.1 for macOS (SPM) on 30 Apr 2025 05:12:16 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/space-code/lazy.git
Reference: 1.1.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/space-code/lazy
 * tag               1.1.0      -> FETCH_HEAD
HEAD is now at 96ff53d Update `CHANGELOG.md` (#3)
Cloned https://github.com/space-code/lazy.git
Revision (git rev-parse @):
96ff53de924fd91a753c9ac3d30e922dde707162
SUCCESS checkout https://github.com/space-code/lazy.git at 1.1.0
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/space-code/lazy.git
https://github.com/space-code/lazy.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Lazy",
  "name" : "Lazy",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "12.0"
    },
    {
      "name" : "macos",
      "version" : "10.13"
    },
    {
      "name" : "tvos",
      "version" : "12.0"
    },
    {
      "name" : "watchos",
      "version" : "4.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "Lazy",
      "targets" : [
        "Lazy"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LazyTests",
      "module_type" : "SwiftTarget",
      "name" : "LazyTests",
      "path" : "Tests/LazyTests",
      "sources" : [
        "LazyTests.swift"
      ],
      "target_dependencies" : [
        "Lazy"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Lazy",
      "module_type" : "SwiftTarget",
      "name" : "Lazy",
      "path" : "Sources/Lazy",
      "product_memberships" : [
        "Lazy"
      ],
      "sources" : [
        "Classes/Lazy.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
[3/4] Compiling Lazy Lazy.swift
[4/4] Emitting module Lazy
Build complete! (4.54s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Lazy",
  "name" : "Lazy",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "12.0"
    },
    {
      "name" : "macos",
      "version" : "10.13"
    },
    {
      "name" : "tvos",
      "version" : "12.0"
    },
    {
      "name" : "watchos",
      "version" : "4.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "Lazy",
      "targets" : [
        "Lazy"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LazyTests",
      "module_type" : "SwiftTarget",
      "name" : "LazyTests",
      "path" : "Tests/LazyTests",
      "sources" : [
        "LazyTests.swift"
      ],
      "target_dependencies" : [
        "Lazy"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Lazy",
      "module_type" : "SwiftTarget",
      "name" : "Lazy",
      "path" : "Sources/Lazy",
      "product_memberships" : [
        "Lazy"
      ],
      "sources" : [
        "Classes/Lazy.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
Done.