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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 StackWrapper, reference main (50a2f1), with Swift 6.1 for macOS (SPM) on 3 May 2025 15:52:19 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: 4.61.3
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Desp0o/StackWrapper.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Desp0o/StackWrapper
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 50a2f15 update package
Cloned https://github.com/Desp0o/StackWrapper.git
Revision (git rev-parse @):
50a2f15ef9fec57aafe83a51f48994e4b078e88f
SUCCESS checkout https://github.com/Desp0o/StackWrapper.git at main
========================================
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": "stackwrapper",
      "name": "StackWrapper",
      "url": "https://github.com/Desp0o/StackWrapper.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/StackWrapper",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/Desp0o/StackWrapper.git
[1/34] Fetching stackwrapper
Fetched https://github.com/Desp0o/StackWrapper.git from cache (0.58s)
Creating working copy for https://github.com/Desp0o/StackWrapper.git
Working copy of https://github.com/Desp0o/StackWrapper.git resolved at main (50a2f15)
warning: '.resolve-product-dependencies': dependency 'stackwrapper' 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/Desp0o/StackWrapper.git
https://github.com/Desp0o/StackWrapper.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "StackWrapper",
  "name" : "StackWrapper",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "StackWrapper",
      "targets" : [
        "StackWrapper"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "StackWrapper",
      "module_type" : "SwiftTarget",
      "name" : "StackWrapper",
      "path" : "Sources/StackWrapper",
      "product_memberships" : [
        "StackWrapper"
      ],
      "sources" : [
        "StackWrapper.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] Emitting module StackWrapper
[4/4] Compiling StackWrapper StackWrapper.swift
Build complete! (7.45s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "StackWrapper",
  "name" : "StackWrapper",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "StackWrapper",
      "targets" : [
        "StackWrapper"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "StackWrapper",
      "module_type" : "SwiftTarget",
      "name" : "StackWrapper",
      "path" : "Sources/StackWrapper",
      "product_memberships" : [
        "StackWrapper"
      ],
      "sources" : [
        "StackWrapper.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
Done.