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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 Lista, reference main (588790), with Swift 6.1 for macOS (SPM) on 29 Apr 2025 18:29:06 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/ptsochantaris/lista.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/ptsochantaris/lista
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 588790a Locking for non-Apple platforms
Cloned https://github.com/ptsochantaris/lista.git
Revision (git rev-parse @):
588790a0bef7f4f6cdfcc8d072e37a4b0c5e2ba9
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/ptsochantaris/lista.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/ptsochantaris/lista.git
https://github.com/ptsochantaris/lista.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Lista",
  "name" : "Lista",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Lista",
      "targets" : [
        "Lista"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ListaTests",
      "module_type" : "SwiftTarget",
      "name" : "ListaTests",
      "path" : "Tests/ListaTests",
      "sources" : [
        "ListaTests.swift"
      ],
      "target_dependencies" : [
        "Lista"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Lista",
      "module_type" : "SwiftTarget",
      "name" : "Lista",
      "path" : "Sources/Lista",
      "product_memberships" : [
        "Lista"
      ],
      "sources" : [
        "Lista.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] Compiling Lista Lista.swift
[4/4] Emitting module Lista
Build complete! (4.79s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Lista",
  "name" : "Lista",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Lista",
      "targets" : [
        "Lista"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ListaTests",
      "module_type" : "SwiftTarget",
      "name" : "ListaTests",
      "path" : "Tests/ListaTests",
      "sources" : [
        "ListaTests.swift"
      ],
      "target_dependencies" : [
        "Lista"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Lista",
      "module_type" : "SwiftTarget",
      "name" : "Lista",
      "path" : "Sources/Lista",
      "product_memberships" : [
        "Lista"
      ],
      "sources" : [
        "Lista.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
Done.