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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 SourceMapper, reference main (8fb4bd), with Swift 6.0 for macOS (SPM) on 29 Apr 2025 15:31:19 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: 4.61.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/johnfairh/SourceMapper.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/johnfairh/SourceMapper
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 8fb4bd6 Move CI to Swift 6.1 (#8)
Cloned https://github.com/johnfairh/SourceMapper.git
Revision (git rev-parse @):
8fb4bd6d9eeb064a77642d61b75d396127b71741
SUCCESS checkout https://github.com/johnfairh/SourceMapper.git at main
========================================
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": "sourcemapper",
      "name": "SourceMapper",
      "url": "https://github.com/johnfairh/SourceMapper.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/SourceMapper",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/johnfairh/SourceMapper.git
[6/540] Fetching sourcemapper
Fetched https://github.com/johnfairh/SourceMapper.git from cache (1.03s)
Creating working copy for https://github.com/johnfairh/SourceMapper.git
Working copy of https://github.com/johnfairh/SourceMapper.git resolved at main (8fb4bd6)
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/johnfairh/SourceMapper.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun swift build --arch arm64
Building for debugging...
[0/7] Write sources
[2/7] Write srcmapcat-entitlement.plist
[3/7] Write swift-version-5BDAB9E9C0126B9D.txt
[5/14] Compiling SourceMapper UnpackedSourceMap.swift
[6/14] Compiling SourceMapper Mappings.swift
[7/14] Compiling SourceMapper Errors.swift
[8/14] Emitting module SourceMapper
[9/14] Compiling SourceMapper JSON.swift
[10/14] Compiling SourceMapper SourceMap.swift
[11/14] Compiling SourceMapper VLQ.swift
[12/16] Compiling Cli main.swift
[13/16] Emitting module Cli
[13/16] Write Objects.LinkFileList
[14/16] Linking srcmapcat
[15/16] Applying srcmapcat
Build complete! (5.10s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SourceMapper",
  "name" : "SourceMapper",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SourceMapper",
      "targets" : [
        "SourceMapper"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "srcmapcat",
      "targets" : [
        "Cli"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SourceMapperTests",
      "module_type" : "SwiftTarget",
      "name" : "SourceMapperTests",
      "path" : "Tests/SourceMapperTests",
      "sources" : [
        "TestBasics.swift",
        "TestHelpers.swift",
        "TestJSON.swift",
        "TestMappings.swift",
        "TestVLQ.swift"
      ],
      "target_dependencies" : [
        "SourceMapper"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SourceMapper",
      "module_type" : "SwiftTarget",
      "name" : "SourceMapper",
      "path" : "Sources/SourceMapper",
      "product_memberships" : [
        "SourceMapper",
        "srcmapcat"
      ],
      "sources" : [
        "Errors.swift",
        "JSON.swift",
        "Mappings.swift",
        "SourceMap.swift",
        "UnpackedSourceMap.swift",
        "VLQ.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Cli",
      "module_type" : "SwiftTarget",
      "name" : "Cli",
      "path" : "Sources/Cli",
      "product_memberships" : [
        "srcmapcat"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "SourceMapper"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "6.0"
}
Done.