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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-log, reference 1.6.3 (3d8596), with Swift 5.10 for macOS (SPM) on 13 Mar 2025 11:16:46 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.60.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/apple/swift-log.git
Reference: 1.6.3
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/apple/swift-log
 * tag               1.6.3      -> FETCH_HEAD
HEAD is now at 3d8596e Fix building on Fedora 39 and Ubuntu 24.04 (#354)
Cloned https://github.com/apple/swift-log.git
Revision (git rev-parse @):
3d8596ed08bd13520157f0355e35caed215ffbfa
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/apple/swift-log.git at 1.6.3
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.10
Building package at path:  $PWD
https://github.com/apple/swift-log.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-33747A42983211AE.txt
[3/7] Compiling Logging Locks.swift
[4/7] Compiling Logging LogHandler.swift
[5/7] Emitting module Logging
[6/7] Compiling Logging Logging.swift
[7/7] Compiling Logging MetadataProvider.swift
Build complete! (2.63s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "swift-log",
  "name" : "swift-log",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Logging",
      "targets" : [
        "Logging"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LoggingTests",
      "module_type" : "SwiftTarget",
      "name" : "LoggingTests",
      "path" : "Tests/LoggingTests",
      "sources" : [
        "CompatibilityTest.swift",
        "GlobalLoggingTest.swift",
        "LocalLoggingTest.swift",
        "LoggingTest.swift",
        "MDCTest.swift",
        "MetadataProviderTest.swift",
        "SubDirectoryOfLoggingTests/EmitALogFromSubDirectory.swift",
        "TestLogger.swift",
        "TestSendable.swift"
      ],
      "target_dependencies" : [
        "Logging"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Logging",
      "module_type" : "SwiftTarget",
      "name" : "Logging",
      "path" : "Sources/Logging",
      "product_memberships" : [
        "Logging"
      ],
      "sources" : [
        "Locks.swift",
        "LogHandler.swift",
        "Logging.swift",
        "MetadataProvider.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
Done.