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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 Redline, reference main (3da505), with Swift 6.1 for macOS (SPM) on 29 Apr 2025 22:43:45 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/robb/Redline.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/robb/Redline
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 3da505c Initial commit
Cloned https://github.com/robb/Redline.git
Revision (git rev-parse @):
3da505c314d7316cc22e78eeda970b0c7f318b87
SUCCESS checkout https://github.com/robb/Redline.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/robb/Redline.git
https://github.com/robb/Redline.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Redline",
  "name" : "Redline",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "18.0"
    },
    {
      "name" : "macos",
      "version" : "15.0"
    }
  ],
  "products" : [
    {
      "name" : "Redline",
      "targets" : [
        "Redline"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "Redline",
      "module_type" : "SwiftTarget",
      "name" : "Redline",
      "path" : "Sources/Redline",
      "product_memberships" : [
        "Redline"
      ],
      "sources" : [
        "CGPoint+Offset.swift",
        "CGRect+UnitPoint.swift",
        "DimensionLabel.swift",
        "IBeam.swift",
        "Line.swift",
        "VisualizeAlignmentGuide.swift",
        "VisualizeDimension.swift",
        "VisualizePosition.swift",
        "VisualizeSpacing.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
[3/12] Compiling Redline VisualizeDimension.swift
[4/12] Compiling Redline VisualizeSpacing.swift
[5/12] Compiling Redline VisualizePosition.swift
[6/12] Compiling Redline VisualizeAlignmentGuide.swift
[7/12] Compiling Redline IBeam.swift
[8/12] Compiling Redline CGRect+UnitPoint.swift
[9/12] Compiling Redline CGPoint+Offset.swift
[10/12] Emitting module Redline
[11/12] Compiling Redline Line.swift
[12/12] Compiling Redline DimensionLabel.swift
Build complete! (9.47s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Redline",
  "name" : "Redline",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "18.0"
    },
    {
      "name" : "macos",
      "version" : "15.0"
    }
  ],
  "products" : [
    {
      "name" : "Redline",
      "targets" : [
        "Redline"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "Redline",
      "module_type" : "SwiftTarget",
      "name" : "Redline",
      "path" : "Sources/Redline",
      "product_memberships" : [
        "Redline"
      ],
      "sources" : [
        "CGPoint+Offset.swift",
        "CGRect+UnitPoint.swift",
        "DimensionLabel.swift",
        "IBeam.swift",
        "Line.swift",
        "VisualizeAlignmentGuide.swift",
        "VisualizeDimension.swift",
        "VisualizePosition.swift",
        "VisualizeSpacing.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
Done.