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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 Arguments, reference 1.1.1 (580f0f), with Swift 6.1 for macOS (SPM) on 25 Apr 2025 16:39:43 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/elegantchaos/Arguments.git
Reference: 1.1.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/elegantchaos/Arguments
 * tag               1.1.1      -> FETCH_HEAD
HEAD is now at 580f0f7 use newer Docopt which builds under Swift 5.2
Cloned https://github.com/elegantchaos/Arguments.git
Revision (git rev-parse @):
580f0f7886f1ac2c94358dbf042c5e00a93d69c8
SUCCESS checkout https://github.com/elegantchaos/Arguments.git at 1.1.1
Fetching https://github.com/elegantchaos/docopt.swift.git
[1/787] Fetching docopt.swift
Fetched https://github.com/elegantchaos/docopt.swift.git from cache (0.90s)
Computing version for https://github.com/elegantchaos/docopt.swift.git
Computed https://github.com/elegantchaos/docopt.swift.git at 0.6.12 (1.52s)
Creating working copy for https://github.com/elegantchaos/docopt.swift.git
Working copy of https://github.com/elegantchaos/docopt.swift.git resolved at 0.6.12
========================================
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": "arguments",
      "name": "Arguments",
      "url": "https://github.com/elegantchaos/Arguments.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Arguments",
      "dependencies": [
        {
          "identity": "docopt.swift",
          "name": "Docopt",
          "url": "https://github.com/elegantchaos/docopt.swift.git",
          "version": "0.6.12",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/docopt.swift",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/elegantchaos/Arguments.git
[1/116] Fetching arguments
Fetched https://github.com/elegantchaos/Arguments.git from cache (0.64s)
Fetching https://github.com/elegantchaos/docopt.swift.git from cache
Fetched https://github.com/elegantchaos/docopt.swift.git from cache (0.43s)
Computing version for https://github.com/elegantchaos/docopt.swift.git
Computed https://github.com/elegantchaos/docopt.swift.git at 0.6.12 (0.48s)
Creating working copy for https://github.com/elegantchaos/Arguments.git
Working copy of https://github.com/elegantchaos/Arguments.git resolved at 1.1.1 (580f0f7)
Creating working copy for https://github.com/elegantchaos/docopt.swift.git
Working copy of https://github.com/elegantchaos/docopt.swift.git resolved at 0.6.12
warning: '.resolve-product-dependencies': dependency 'arguments' is not used by any target
Found 1 product dependencies
  - Docopt
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/elegantchaos/Arguments.git
https://github.com/elegantchaos/Arguments.git
{
  "dependencies" : [
    {
      "identity" : "docopt.swift",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.6.12",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/elegantchaos/docopt.swift.git"
    }
  ],
  "manifest_display_name" : "Arguments",
  "name" : "Arguments",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Arguments",
      "targets" : [
        "Arguments"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ArgumentsTests",
      "module_type" : "SwiftTarget",
      "name" : "ArgumentsTests",
      "path" : "Tests/ArgumentsTests",
      "sources" : [
        "ArgumentsTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "Arguments"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Arguments",
      "module_type" : "SwiftTarget",
      "name" : "Arguments",
      "path" : "Sources/Arguments",
      "product_dependencies" : [
        "Docopt"
      ],
      "product_memberships" : [
        "Arguments"
      ],
      "sources" : [
        "Arguments.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...
[0/3] Write sources
[2/3] Write swift-version-2F0A5646E1D333AE.txt
[4/18] Compiling Docopt String.swift
[5/18] Compiling Docopt OptionsShortcut.swift
[6/18] Compiling Docopt Pattern.swift
[7/18] Compiling Docopt Required.swift
[8/19] Compiling Docopt LeafPattern.swift
[9/19] Compiling Docopt OneOrMore.swift
[10/19] Compiling Docopt Argument.swift
[11/19] Compiling Docopt BranchPattern.swift
[12/19] Compiling Docopt Command.swift
[13/19] Compiling Docopt Docopt.swift
[14/19] Compiling Docopt DocoptError.swift
[15/19] Compiling Docopt Either.swift
[16/19] Emitting module Docopt
[17/19] Compiling Docopt Option.swift
[18/19] Compiling Docopt Optional.swift
[19/19] Compiling Docopt Tokens.swift
[20/21] Compiling Arguments Arguments.swift
[21/21] Emitting module Arguments
Build complete! (9.25s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "docopt.swift",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.6.12",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/elegantchaos/docopt.swift.git"
    }
  ],
  "manifest_display_name" : "Arguments",
  "name" : "Arguments",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Arguments",
      "targets" : [
        "Arguments"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ArgumentsTests",
      "module_type" : "SwiftTarget",
      "name" : "ArgumentsTests",
      "path" : "Tests/ArgumentsTests",
      "sources" : [
        "ArgumentsTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "Arguments"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Arguments",
      "module_type" : "SwiftTarget",
      "name" : "Arguments",
      "path" : "Sources/Arguments",
      "product_dependencies" : [
        "Docopt"
      ],
      "product_memberships" : [
        "Arguments"
      ],
      "sources" : [
        "Arguments.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Done.