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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 TemplatePackage, reference 0.3.0 (117e8d), with Swift 6.1 for macOS (SPM) on 29 Apr 2025 23:11:02 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/StanfordBDHG/SwiftPackageTemplate.git
Reference: 0.3.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/StanfordBDHG/SwiftPackageTemplate
 * tag               0.3.0      -> FETCH_HEAD
HEAD is now at 117e8d5 Fix Swift Language mode for UITest targets (#20)
Cloned https://github.com/StanfordBDHG/SwiftPackageTemplate.git
Revision (git rev-parse @):
117e8d53f94b06178829aaf70909b4ee73ca1fb1
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/StanfordBDHG/SwiftPackageTemplate.git at 0.3.0
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/StanfordBDHG/SwiftPackageTemplate.git
https://github.com/StanfordBDHG/SwiftPackageTemplate.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "TemplatePackage",
  "name" : "TemplatePackage",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "17.0"
    },
    {
      "name" : "watchos",
      "version" : "10.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    },
    {
      "name" : "tvos",
      "version" : "17.0"
    },
    {
      "name" : "macos",
      "version" : "14.0"
    }
  ],
  "products" : [
    {
      "name" : "TemplatePackage",
      "targets" : [
        "TemplatePackage"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "TemplatePackageTests",
      "module_type" : "SwiftTarget",
      "name" : "TemplatePackageTests",
      "path" : "Tests/TemplatePackageTests",
      "sources" : [
        "TemplatePackageTests.swift"
      ],
      "target_dependencies" : [
        "TemplatePackage"
      ],
      "type" : "test"
    },
    {
      "c99name" : "TemplatePackage",
      "module_type" : "SwiftTarget",
      "name" : "TemplatePackage",
      "path" : "Sources/TemplatePackage",
      "product_memberships" : [
        "TemplatePackage"
      ],
      "sources" : [
        "TemplatePackage.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] Emitting module TemplatePackage
[4/4] Compiling TemplatePackage TemplatePackage.swift
Build complete! (0.79s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "TemplatePackage",
  "name" : "TemplatePackage",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "17.0"
    },
    {
      "name" : "watchos",
      "version" : "10.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    },
    {
      "name" : "tvos",
      "version" : "17.0"
    },
    {
      "name" : "macos",
      "version" : "14.0"
    }
  ],
  "products" : [
    {
      "name" : "TemplatePackage",
      "targets" : [
        "TemplatePackage"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "TemplatePackageTests",
      "module_type" : "SwiftTarget",
      "name" : "TemplatePackageTests",
      "path" : "Tests/TemplatePackageTests",
      "sources" : [
        "TemplatePackageTests.swift"
      ],
      "target_dependencies" : [
        "TemplatePackage"
      ],
      "type" : "test"
    },
    {
      "c99name" : "TemplatePackage",
      "module_type" : "SwiftTarget",
      "name" : "TemplatePackage",
      "path" : "Sources/TemplatePackage",
      "product_memberships" : [
        "TemplatePackage"
      ],
      "sources" : [
        "TemplatePackage.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
Done.