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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 swim, reference master (a29d99), with Swift 6.1 for macOS (SPM) on 25 Apr 2025 15:22:23 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/mitsuse/swim.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/mitsuse/swim
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at a29d999 Merge branch 'update-readme'
Cloned https://github.com/mitsuse/swim.git
Revision (git rev-parse @):
a29d999c27475bfb3859c7d48b51f8353c0410b1
SUCCESS checkout https://github.com/mitsuse/swim.git at master
Fetching https://github.com/Quick/Quick.git
Fetching https://github.com/Carthage/Commandant.git
Fetching https://github.com/Quick/Nimble.git
[1/2329] Fetching commandant
[2330/21896] Fetching commandant, nimble
[2722/36651] Fetching commandant, nimble, quick
Fetched https://github.com/Quick/Quick.git from cache (1.66s)
Fetched https://github.com/Carthage/Commandant.git from cache (1.66s)
Fetched https://github.com/Quick/Nimble.git from cache (1.66s)
Computing version for https://github.com/Carthage/Commandant.git
Computed https://github.com/Carthage/Commandant.git at 0.17.0 (2.27s)
Computing version for https://github.com/Quick/Nimble.git
Computed https://github.com/Quick/Nimble.git at 8.0.2 (0.58s)
Computing version for https://github.com/Quick/Quick.git
Computed https://github.com/Quick/Quick.git at 2.1.0 (0.59s)
Creating working copy for https://github.com/Carthage/Commandant.git
Working copy of https://github.com/Carthage/Commandant.git resolved at 0.17.0
Creating working copy for https://github.com/Quick/Nimble.git
Working copy of https://github.com/Quick/Nimble.git resolved at 8.0.2
Creating working copy for https://github.com/Quick/Quick.git
Working copy of https://github.com/Quick/Quick.git resolved at 2.1.0
========================================
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": "swim",
      "name": "swim",
      "url": "https://github.com/mitsuse/swim.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swim",
      "dependencies": [
        {
          "identity": "commandant",
          "name": "Commandant",
          "url": "https://github.com/Carthage/Commandant.git",
          "version": "0.17.0",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Commandant",
          "dependencies": [
            {
              "identity": "quick",
              "name": "Quick",
              "url": "https://github.com/Quick/Quick.git",
              "version": "2.2.1",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Quick",
              "dependencies": [
                {
                  "identity": "nimble",
                  "name": "Nimble",
                  "url": "https://github.com/Quick/Nimble.git",
                  "version": "8.1.2",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Nimble",
                  "dependencies": [
                  ]
                }
              ]
            },
            {
              "identity": "nimble",
              "name": "Nimble",
              "url": "https://github.com/Quick/Nimble.git",
              "version": "8.1.2",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Nimble",
              "dependencies": [
              ]
            }
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/mitsuse/swim.git
[3/99] Fetching swim
Fetched https://github.com/mitsuse/swim.git from cache (0.57s)
Fetching https://github.com/Carthage/Commandant.git from cache
Fetched https://github.com/Carthage/Commandant.git from cache (0.44s)
Computing version for https://github.com/Carthage/Commandant.git
Computed https://github.com/Carthage/Commandant.git at 0.17.0 (0.49s)
Fetching https://github.com/Quick/Quick.git from cache
Fetching https://github.com/Quick/Nimble.git from cache
Fetched https://github.com/Quick/Quick.git from cache (0.60s)
Fetched https://github.com/Quick/Nimble.git from cache (0.60s)
Computing version for https://github.com/Quick/Quick.git
Computed https://github.com/Quick/Quick.git at 2.2.1 (1.19s)
Computing version for https://github.com/Quick/Nimble.git
Computed https://github.com/Quick/Nimble.git at 8.1.2 (0.57s)
Creating working copy for https://github.com/Quick/Quick.git
Working copy of https://github.com/Quick/Quick.git resolved at 2.2.1
Creating working copy for https://github.com/Carthage/Commandant.git
Working copy of https://github.com/Carthage/Commandant.git resolved at 0.17.0
Creating working copy for https://github.com/mitsuse/swim.git
Working copy of https://github.com/mitsuse/swim.git resolved at master (a29d999)
Creating working copy for https://github.com/Quick/Nimble.git
Working copy of https://github.com/Quick/Nimble.git resolved at 8.1.2
Found 1 product dependencies
  - Commandant
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/mitsuse/swim.git
https://github.com/mitsuse/swim.git
{
  "dependencies" : [
    {
      "identity" : "commandant",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.17.0",
            "upper_bound" : "0.18.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Carthage/Commandant.git"
    }
  ],
  "manifest_display_name" : "swim",
  "name" : "swim",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.14"
    }
  ],
  "products" : [
    {
      "name" : "swim",
      "targets" : [
        "swim"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "swim",
      "module_type" : "SwiftTarget",
      "name" : "swim",
      "path" : "Sources/swim",
      "product_dependencies" : [
        "Commandant"
      ],
      "product_memberships" : [
        "swim"
      ],
      "sources" : [
        "Command.swift",
        "InputSource.swift",
        "Object.swift",
        "RawInputSource.swift",
        "main.swift"
      ],
      "type" : "executable"
    }
  ],
  "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...
[0/7] Write sources
[0/7] Write swim-entitlement.plist
[2/7] Write sources
[3/7] Write swift-version-2F0A5646E1D333AE.txt
[5/17] Compiling Commandant OrderedSet.swift
[6/17] Compiling Commandant Result+Additions.swift
[7/18] Compiling Commandant Switch.swift
[8/18] Compiling Commandant ArgumentProtocol.swift
[9/18] Compiling Commandant ArgumentParser.swift
[10/18] Compiling Commandant Command.swift
[11/18] Emitting module Commandant
[12/18] Compiling Commandant HelpCommand.swift
[13/18] Compiling Commandant Option.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/Commandant/Sources/Commandant/Option.swift:239:32: error: instance method 'contains' requires that 'String.Element' (aka 'Character') conform to 'Collection'
237 | 			let components = unwrappedStringValue.split(
238 | 				omittingEmptySubsequences: true,
239 | 				whereSeparator: [",", " "].contains
    |                                `- error: instance method 'contains' requires that 'String.Element' (aka 'Character') conform to 'Collection'
240 | 			)
241 | 			var resultValues: [T] = []
_StringProcessing.Collection.contains:3:15: note: where 'C' = 'String.Element' (aka 'Character')
1 | protocol Collection {
2 | @available(macOS 13.0, iOS 16.0, watchOS 9.0, tvOS 16.0, *)
3 |   public func contains<C>(_ other: C) -> Bool where C : Collection, Self.Element == C.Element}
  |               `- note: where 'C' = 'String.Element' (aka 'Character')
4 |
[14/18] Compiling Commandant Argument.swift
[15/18] Compiling Commandant Errors.swift
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
[0/1] Planning build
Building for debugging...
[0/4] Write swift-version-2F0A5646E1D333AE.txt
[2/14] Compiling Commandant OrderedSet.swift
[3/15] Compiling Commandant Result+Additions.swift
[4/15] Compiling Commandant Errors.swift
[5/15] Compiling Commandant Option.swift
[6/15] Compiling Commandant Command.swift
[7/15] Compiling Commandant ArgumentProtocol.swift
[8/15] Compiling Commandant HelpCommand.swift
[9/15] Compiling Commandant Argument.swift
[10/15] Emitting module Commandant
[11/15] Compiling Commandant ArgumentParser.swift
[12/15] Compiling Commandant Switch.swift
[13/21] Emitting module swim
[14/21] Compiling swim main.swift
[15/21] Compiling swim Object.swift
[16/21] Compiling swim InputSource.swift
[17/21] Compiling swim RawInputSource.swift
[18/21] Compiling swim Command.swift
[18/21] Write Objects.LinkFileList
[19/21] Linking swim
[20/21] Applying swim
Build complete! (5.42s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "commandant",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.17.0",
            "upper_bound" : "0.18.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Carthage/Commandant.git"
    }
  ],
  "manifest_display_name" : "swim",
  "name" : "swim",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.14"
    }
  ],
  "products" : [
    {
      "name" : "swim",
      "targets" : [
        "swim"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "swim",
      "module_type" : "SwiftTarget",
      "name" : "swim",
      "path" : "Sources/swim",
      "product_dependencies" : [
        "Commandant"
      ],
      "product_memberships" : [
        "swim"
      ],
      "sources" : [
        "Command.swift",
        "InputSource.swift",
        "Object.swift",
        "RawInputSource.swift",
        "main.swift"
      ],
      "type" : "executable"
    }
  ],
  "tools_version" : "5.0"
}
Done.