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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 0.4.0 (a2860d), with Swift 6.1 for macOS (SPM) on 25 Apr 2025 15:22:20 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: 0.4.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/mitsuse/swim
 * tag               0.4.0      -> FETCH_HEAD
HEAD is now at a2860de 0.4.0
Cloned https://github.com/mitsuse/swim.git
Revision (git rev-parse @):
a2860dee5e1ed63e33bc9356c9293ed721268e3e
SUCCESS checkout https://github.com/mitsuse/swim.git at 0.4.0
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
[2330/17084] Fetching commandant, quick
[3658/36651] Fetching commandant, quick, nimble
Fetched https://github.com/Carthage/Commandant.git from cache (1.90s)
Fetched https://github.com/Quick/Quick.git from cache (1.90s)
Fetched https://github.com/Quick/Nimble.git from cache (1.90s)
Computing version for https://github.com/Carthage/Commandant.git
Computed https://github.com/Carthage/Commandant.git at 0.17.0 (2.50s)
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 (0.62s)
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/Quick.git
Working copy of https://github.com/Quick/Quick.git resolved at 2.1.0
Creating working copy for https://github.com/Quick/Nimble.git
Working copy of https://github.com/Quick/Nimble.git resolved at 8.0.2
========================================
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
[1/99] Fetching swim
Fetched https://github.com/mitsuse/swim.git from cache (0.60s)
Fetching https://github.com/Carthage/Commandant.git from cache
Fetched https://github.com/Carthage/Commandant.git from cache (0.46s)
Computing version for https://github.com/Carthage/Commandant.git
Computed https://github.com/Carthage/Commandant.git at 0.17.0 (0.51s)
Fetching https://github.com/Quick/Quick.git from cache
Fetching https://github.com/Quick/Nimble.git from cache
Fetched https://github.com/Quick/Nimble.git from cache (0.54s)
Fetched https://github.com/Quick/Quick.git from cache (0.54s)
Computing version for https://github.com/Quick/Quick.git
Computed https://github.com/Quick/Quick.git at 2.2.1 (1.16s)
Computing version for https://github.com/Quick/Nimble.git
Computed https://github.com/Quick/Nimble.git at 8.1.2 (0.59s)
Creating working copy for https://github.com/mitsuse/swim.git
Working copy of https://github.com/mitsuse/swim.git resolved at 0.4.0 (a2860de)
Creating working copy for https://github.com/Quick/Nimble.git
Working copy of https://github.com/Quick/Nimble.git resolved at 8.1.2
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
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
[3/7] Write swift-version-2F0A5646E1D333AE.txt
[5/17] Compiling Commandant OrderedSet.swift
[6/17] Compiling Commandant Result+Additions.swift
[7/17] 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 |
[8/18] Compiling Commandant Errors.swift
[9/18] Compiling Commandant ArgumentProtocol.swift
[10/18] Compiling Commandant Argument.swift
[11/18] Emitting module Commandant
[12/18] Compiling Commandant Command.swift
[13/18] Compiling Commandant ArgumentParser.swift
[14/18] Compiling Commandant HelpCommand.swift
[15/18] Compiling Commandant Switch.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 Result+Additions.swift
[3/15] Compiling Commandant OrderedSet.swift
[4/15] Compiling Commandant Option.swift
[5/15] Compiling Commandant Errors.swift
[6/15] Compiling Commandant HelpCommand.swift
[7/15] Compiling Commandant ArgumentProtocol.swift
[8/15] Compiling Commandant ArgumentParser.swift
[9/15] Compiling Commandant Argument.swift
[10/15] Compiling Commandant Command.swift
[11/15] Emitting module Commandant
[12/15] Compiling Commandant Switch.swift
[13/21] Compiling swim Object.swift
[14/21] Compiling swim InputSource.swift
[15/21] Emitting module swim
[16/21] Compiling swim Command.swift
[17/21] Compiling swim RawInputSource.swift
[18/21] Compiling swim main.swift
[18/21] Write Objects.LinkFileList
[19/21] Linking swim
[20/21] Applying swim
Build complete! (5.48s)
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.