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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 Regex, reference master (6ceb24), with Swift 6.1 for macOS (SPM) on 24 Apr 2025 11:47:36 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/davidskrundz/regex.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/davidskrundz/regex
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 6ceb24d Corrected spelling
Cloned https://github.com/davidskrundz/regex.git
Revision (git rev-parse @):
6ceb24d26dd1c8e4c0fc239ec779c13938c672f6
SUCCESS checkout https://github.com/davidskrundz/regex.git at master
Fetching https://github.com/DavidSkrundz/Collections.git
[1/203] Fetching collections
Fetched https://github.com/DavidSkrundz/Collections.git from cache (0.63s)
Computing version for https://github.com/DavidSkrundz/Collections.git
Computed https://github.com/DavidSkrundz/Collections.git at 1.1.2 (1.24s)
Creating working copy for https://github.com/DavidSkrundz/Collections.git
Working copy of https://github.com/DavidSkrundz/Collections.git resolved at 1.1.2
========================================
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": "regex",
      "name": "Regex",
      "url": "https://github.com/davidskrundz/regex.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/regex",
      "dependencies": [
        {
          "identity": "collections",
          "name": "Collections",
          "url": "https://github.com/DavidSkrundz/Collections.git",
          "version": "1.1.2",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Collections",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/davidskrundz/regex.git
[1/227] Fetching regex
Fetched https://github.com/davidskrundz/regex.git from cache (0.72s)
Fetching https://github.com/DavidSkrundz/Collections.git from cache
Fetched https://github.com/DavidSkrundz/Collections.git from cache (0.40s)
Computing version for https://github.com/DavidSkrundz/Collections.git
Computed https://github.com/DavidSkrundz/Collections.git at 1.1.2 (0.45s)
Creating working copy for https://github.com/davidskrundz/regex.git
Working copy of https://github.com/davidskrundz/regex.git resolved at master (6ceb24d)
Creating working copy for https://github.com/DavidSkrundz/Collections.git
Working copy of https://github.com/DavidSkrundz/Collections.git resolved at 1.1.2
warning: '.resolve-product-dependencies': dependency 'regex' is not used by any target
Found 1 product dependencies
  - Collections
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/davidskrundz/regex.git
https://github.com/davidskrundz/regex.git
{
  "dependencies" : [
    {
      "identity" : "collections",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.1.0",
            "upper_bound" : "1.2.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/DavidSkrundz/Collections.git"
    }
  ],
  "manifest_display_name" : "Regex",
  "name" : "Regex",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Regex",
      "targets" : [
        "Regex"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "sRegex",
      "targets" : [
        "Regex"
      ],
      "type" : {
        "library" : [
          "static"
        ]
      }
    },
    {
      "name" : "dRegex",
      "targets" : [
        "Regex"
      ],
      "type" : {
        "library" : [
          "dynamic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "RegexTests",
      "module_type" : "SwiftTarget",
      "name" : "RegexTests",
      "path" : "Tests/RegexTests",
      "sources" : [
        "CompilerTests.swift",
        "LexerTests.swift",
        "OptimizerTests.swift",
        "ParserTests.swift",
        "RegexTests.swift"
      ],
      "target_dependencies" : [
        "Regex"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Regex",
      "module_type" : "SwiftTarget",
      "name" : "Regex",
      "path" : "Sources/Regex",
      "product_dependencies" : [
        "Generator"
      ],
      "product_memberships" : [
        "Regex",
        "sRegex",
        "dRegex"
      ],
      "sources" : [
        "Automaton.swift",
        "Compiler/Compiler.swift",
        "Lexer/Lexer.swift",
        "Lexer/Token.swift",
        "Optimizer/Optimizer.swift",
        "Parser/Parser.swift",
        "Parser/Symbol.swift",
        "Regex.swift",
        "RegexError.swift",
        "RegexMatch.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.1"
}
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...
[0/7] Write sources
[2/7] Write swift-version-2F0A5646E1D333AE.txt
[4/17] Compiling Generator Generator+Previous.swift
[5/17] Emitting module Generator
[6/17] Compiling Generator Generator.swift
[7/17] Compiling Generator Generator+Iterator.swift
[8/17] Compiling Generator Character.swift
[9/17] Compiling Generator Generator+Peek.swift
[10/17] Compiling Generator Generator+String.swift
[11/17] Compiling Generator Generator+Move.swift
[12/17] Compiling Generator Collection+Generator.swift
[13/17] Compiling Generator Generator+Sequence.swift
[14/27] Compiling Regex RegexError.swift
[15/27] Compiling Regex Regex.swift
[16/28] Compiling Regex Symbol.swift
[17/28] Compiling Regex Token.swift
[18/28] Compiling Regex Optimizer.swift
[19/28] Compiling Regex Parser.swift
[20/28] Compiling Regex Lexer.swift
[21/28] Compiling Regex Automaton.swift
[22/28] Emitting module Regex
[23/28] Compiling Regex Compiler.swift
[24/28] Compiling Regex RegexMatch.swift
[24/28] Write Objects.LinkFileList
[26/28] Archiving libsRegex.a
[27/28] Linking libdRegex.dylib
Build complete! (2.15s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "collections",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.1.0",
            "upper_bound" : "1.2.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/DavidSkrundz/Collections.git"
    }
  ],
  "manifest_display_name" : "Regex",
  "name" : "Regex",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Regex",
      "targets" : [
        "Regex"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "sRegex",
      "targets" : [
        "Regex"
      ],
      "type" : {
        "library" : [
          "static"
        ]
      }
    },
    {
      "name" : "dRegex",
      "targets" : [
        "Regex"
      ],
      "type" : {
        "library" : [
          "dynamic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "RegexTests",
      "module_type" : "SwiftTarget",
      "name" : "RegexTests",
      "path" : "Tests/RegexTests",
      "sources" : [
        "CompilerTests.swift",
        "LexerTests.swift",
        "OptimizerTests.swift",
        "ParserTests.swift",
        "RegexTests.swift"
      ],
      "target_dependencies" : [
        "Regex"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Regex",
      "module_type" : "SwiftTarget",
      "name" : "Regex",
      "path" : "Sources/Regex",
      "product_dependencies" : [
        "Generator"
      ],
      "product_memberships" : [
        "Regex",
        "sRegex",
        "dRegex"
      ],
      "sources" : [
        "Automaton.swift",
        "Compiler/Compiler.swift",
        "Lexer/Lexer.swift",
        "Lexer/Token.swift",
        "Optimizer/Optimizer.swift",
        "Parser/Parser.swift",
        "Parser/Symbol.swift",
        "Regex.swift",
        "RegexError.swift",
        "RegexMatch.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.1"
}
Done.