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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 swift-delta, reference v0.5.1 (24c191), with Swift 6.0 for macOS (SPM) on 3 May 2025 22:47:38 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.3
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Formkunft/swift-delta.git
Reference: v0.5.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Formkunft/swift-delta
 * tag               v0.5.1     -> FETCH_HEAD
HEAD is now at 24c191b Update version number
Cloned https://github.com/Formkunft/swift-delta.git
Revision (git rev-parse @):
24c191b977ff4f98921c4b1acb53907e4fb539f3
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/Formkunft/swift-delta.git at v0.5.1
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/Formkunft/swift-delta.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun swift build --arch arm64
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-5BDAB9E9C0126B9D.txt
[3/5] Compiling DeltaModule DeltaSide.swift
[4/5] Emitting module DeltaModule
[5/5] Compiling DeltaModule Delta.swift
Build complete! (4.39s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "swift-delta",
  "name" : "swift-delta",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "DeltaModule",
      "targets" : [
        "DeltaModule"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "DeltaTests",
      "module_type" : "SwiftTarget",
      "name" : "DeltaTests",
      "path" : "Tests/DeltaTests",
      "sources" : [
        "DeltaTests.swift"
      ],
      "target_dependencies" : [
        "DeltaModule"
      ],
      "type" : "test"
    },
    {
      "c99name" : "DeltaModule",
      "module_type" : "SwiftTarget",
      "name" : "DeltaModule",
      "path" : "Sources/DeltaModule",
      "product_memberships" : [
        "DeltaModule"
      ],
      "sources" : [
        "Delta.swift",
        "DeltaSide.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
Done.