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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 Semver, reference v0.2.1 (6094e6), with Swift 6.1 for macOS (SPM) on 25 Apr 2025 02:43:51 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 -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/ddddxxx/Semver.git
Reference: v0.2.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/ddddxxx/Semver
 * tag               v0.2.1     -> FETCH_HEAD
HEAD is now at 6094e6f add operatingSystemSemanticVersion for ProcessInfo
Cloned https://github.com/ddddxxx/Semver.git
Revision (git rev-parse @):
6094e6f23a02b52b5d211fd114a4750c4f3ecef3
SUCCESS checkout https://github.com/ddddxxx/Semver.git at v0.2.1
========================================
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": "semver",
      "name": "Semver",
      "url": "https://github.com/ddddxxx/Semver.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Semver",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/ddddxxx/Semver.git
[4/398] Fetching semver
Fetched https://github.com/ddddxxx/Semver.git from cache (0.58s)
Creating working copy for https://github.com/ddddxxx/Semver.git
Working copy of https://github.com/ddddxxx/Semver.git resolved at v0.2.1 (6094e6f)
warning: '.resolve-product-dependencies': dependency 'semver' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/ddddxxx/Semver.git
https://github.com/ddddxxx/Semver.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Semver",
  "name" : "Semver",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Semver",
      "targets" : [
        "Semver"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SemverTests",
      "module_type" : "SwiftTarget",
      "name" : "SemverTests",
      "path" : "Tests/SemverTests",
      "sources" : [
        "SemverTests.swift"
      ],
      "target_dependencies" : [
        "Semver"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Semver",
      "module_type" : "SwiftTarget",
      "name" : "Semver",
      "path" : "Sources/Semver",
      "product_memberships" : [
        "Semver"
      ],
      "sources" : [
        "Semver.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
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 -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/4] Compiling Semver Semver.swift
[4/4] Emitting module Semver
Build complete! (4.80s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Semver",
  "name" : "Semver",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Semver",
      "targets" : [
        "Semver"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SemverTests",
      "module_type" : "SwiftTarget",
      "name" : "SemverTests",
      "path" : "Tests/SemverTests",
      "sources" : [
        "SemverTests.swift"
      ],
      "target_dependencies" : [
        "Semver"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Semver",
      "module_type" : "SwiftTarget",
      "name" : "Semver",
      "path" : "Sources/Semver",
      "product_memberships" : [
        "Semver"
      ],
      "sources" : [
        "Semver.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Done.