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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 UnwrapOrThrow, reference main (085ea7), with Swift 6.1 for macOS (SPM) on 27 Apr 2025 13:55:51 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 -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Frizlab/UnwrapOrThrow.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Frizlab/UnwrapOrThrow
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 085ea7b Make the error an autoclosure
Cloned https://github.com/Frizlab/UnwrapOrThrow.git
Revision (git rev-parse @):
085ea7b599b0db956541b7189a57b0c98f15337f
SUCCESS checkout https://github.com/Frizlab/UnwrapOrThrow.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": "unwraporthrow",
      "name": "UnwrapOrThrow",
      "url": "https://github.com/Frizlab/UnwrapOrThrow.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/UnwrapOrThrow",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/Frizlab/UnwrapOrThrow.git
[1/31] Fetching unwraporthrow
Fetched https://github.com/Frizlab/UnwrapOrThrow.git from cache (0.68s)
Creating working copy for https://github.com/Frizlab/UnwrapOrThrow.git
Working copy of https://github.com/Frizlab/UnwrapOrThrow.git resolved at main (085ea7b)
warning: '.resolve-product-dependencies': dependency 'unwraporthrow' 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/Frizlab/UnwrapOrThrow.git
https://github.com/Frizlab/UnwrapOrThrow.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "UnwrapOrThrow",
  "name" : "UnwrapOrThrow",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "UnwrapOrThrow",
      "targets" : [
        "UnwrapOrThrow"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "UnwrapOrThrow",
      "module_type" : "SwiftTarget",
      "name" : "UnwrapOrThrow",
      "path" : "Sources",
      "product_memberships" : [
        "UnwrapOrThrow"
      ],
      "sources" : [
        "UnwrapOrThrow.swift",
        "UnwrapOrThrowOperator.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
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 -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/5] Compiling UnwrapOrThrow UnwrapOrThrow.swift
[4/5] Emitting module UnwrapOrThrow
[5/5] Compiling UnwrapOrThrow UnwrapOrThrowOperator.swift
Build complete! (3.90s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "UnwrapOrThrow",
  "name" : "UnwrapOrThrow",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "UnwrapOrThrow",
      "targets" : [
        "UnwrapOrThrow"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "UnwrapOrThrow",
      "module_type" : "SwiftTarget",
      "name" : "UnwrapOrThrow",
      "path" : "Sources",
      "product_memberships" : [
        "UnwrapOrThrow"
      ],
      "sources" : [
        "UnwrapOrThrow.swift",
        "UnwrapOrThrowOperator.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
Done.