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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 Tribool, reference master (4afddc), with Swift 6.1 for macOS (SPM) on 29 Apr 2025 22:23:54 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: 4.61.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/capnslipp/Tribool.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/capnslipp/Tribool
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 4afddce Bumped project version to 1.2.3
Cloned https://github.com/capnslipp/Tribool.git
Revision (git rev-parse @):
4afddce6d3644f15c3990efdaa19e8024cfa0878
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/capnslipp/Tribool.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/capnslipp/Tribool.git
https://github.com/capnslipp/Tribool.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Tribool",
  "name" : "Tribool",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Tribool",
      "targets" : [
        "Tribool"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "3",
    "4",
    "4.2",
    "5"
  ],
  "targets" : [
    {
      "c99name" : "TriboolTests",
      "module_type" : "SwiftTarget",
      "name" : "TriboolTests",
      "path" : "Tests",
      "sources" : [
        "TriboolTests.swift"
      ],
      "target_dependencies" : [
        "Tribool"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Tribool",
      "module_type" : "SwiftTarget",
      "name" : "Tribool",
      "path" : "Sources",
      "product_memberships" : [
        "Tribool"
      ],
      "sources" : [
        "Tribool.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
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 -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
[3/4] Emitting module Tribool
[4/4] Compiling Tribool Tribool.swift
Build complete! (4.76s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Tribool",
  "name" : "Tribool",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Tribool",
      "targets" : [
        "Tribool"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "3",
    "4",
    "4.2",
    "5"
  ],
  "targets" : [
    {
      "c99name" : "TriboolTests",
      "module_type" : "SwiftTarget",
      "name" : "TriboolTests",
      "path" : "Tests",
      "sources" : [
        "TriboolTests.swift"
      ],
      "target_dependencies" : [
        "Tribool"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Tribool",
      "module_type" : "SwiftTarget",
      "name" : "Tribool",
      "path" : "Sources",
      "product_memberships" : [
        "Tribool"
      ],
      "sources" : [
        "Tribool.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Done.