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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 SwiftCustomLogger, reference master (5eea14), with Swift 5.9 for macOS (SPM) on 18 Apr 2025 19:19:09 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.2.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.60.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/nerzh/swift-custom-logger.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/nerzh/swift-custom-logger
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 5eea143 Merge pull request #1 from makoni/master
Cloned https://github.com/nerzh/swift-custom-logger.git
Revision (git rev-parse @):
5eea143e6674a7a263b96cdf51e4db8bad07820c
SUCCESS checkout https://github.com/nerzh/swift-custom-logger.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.9
Building package at path:  $PWD
https://github.com/nerzh/swift-custom-logger.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.2.0.app xcrun swift build --arch arm64
Building for debugging...
[1/5] Compiling Logging LogHandler.swift
[2/5] Compiling Logging MetadataProvider.swift
[3/5] Emitting module Logging
[4/5] Compiling Logging Locks.swift
[5/5] Compiling Logging Logging.swift
[6/10] Compiling SwiftCustomLogger Printer.swift
[7/10] Compiling SwiftCustomLogger LogFormatter.swift
[8/10] Emitting module SwiftCustomLogger
[9/10] Compiling SwiftCustomLogger CustomHandler.swift
[10/10] Compiling SwiftCustomLogger BasicFormatter.swift
Build complete! (7.60s)
Fetching https://github.com/apple/swift-log
[1/3832] Fetching swift-log
Fetched https://github.com/apple/swift-log (1.54s)
Computing version for https://github.com/apple/swift-log
Computed https://github.com/apple/swift-log at 1.6.3 (0.33s)
Creating working copy for https://github.com/apple/swift-log
Working copy of https://github.com/apple/swift-log resolved at 1.6.3
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-log",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.5.4",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-log"
    }
  ],
  "manifest_display_name" : "SwiftCustomLogger",
  "name" : "SwiftCustomLogger",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SwiftCustomLogger",
      "targets" : [
        "SwiftCustomLogger"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftCustomLogger",
      "module_type" : "SwiftTarget",
      "name" : "SwiftCustomLogger",
      "path" : "Sources/SwiftCustomLogger",
      "product_dependencies" : [
        "Logging"
      ],
      "product_memberships" : [
        "SwiftCustomLogger"
      ],
      "sources" : [
        "BasicFormatter.swift",
        "CustomHandler.swift",
        "LogFormatter.swift",
        "Printer.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
Done.