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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 sls, reference 1.0.1 (8ea463), with Swift 6.1 for macOS (SPM) on 29 Apr 2025 04:09:30 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/maclong9/list.git
Reference: 1.0.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/maclong9/list
 * tag               1.0.1      -> FETCH_HEAD
HEAD is now at 8ea463f fix: update url to be fetched from repo
Cloned https://github.com/maclong9/list.git
Revision (git rev-parse @):
8ea463f372298a03472a4b8e9d71250dc0270cc2
SUCCESS checkout https://github.com/maclong9/list.git at 1.0.1
Fetching https://github.com/apple/swift-argument-parser from cache
Fetched https://github.com/apple/swift-argument-parser from cache (0.62s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.4.0 (1.14s)
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.4.0
========================================
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": "list",
      "name": "sls",
      "url": "https://github.com/maclong9/list.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/list",
      "dependencies": [
        {
          "identity": "swift-argument-parser",
          "name": "swift-argument-parser",
          "url": "https://github.com/apple/swift-argument-parser",
          "version": "1.5.0",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-argument-parser",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/maclong9/list.git
[1/564] Fetching list
Fetched https://github.com/maclong9/list.git from cache (0.97s)
Fetching https://github.com/apple/swift-argument-parser from cache
Fetched https://github.com/apple/swift-argument-parser from cache (0.53s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.5.0 (0.60s)
Creating working copy for https://github.com/maclong9/list.git
Working copy of https://github.com/maclong9/list.git resolved at 1.0.1 (8ea463f)
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.5.0
Found 1 product dependencies
  - swift-argument-parser
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/maclong9/list.git
https://github.com/maclong9/list.git
{
  "dependencies" : [
    {
      "identity" : "swift-argument-parser",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-argument-parser"
    }
  ],
  "manifest_display_name" : "sls",
  "name" : "sls",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "sls",
      "targets" : [
        "sls"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "sls",
      "module_type" : "SwiftTarget",
      "name" : "sls",
      "path" : "Sources",
      "product_dependencies" : [
        "ArgumentParser"
      ],
      "product_memberships" : [
        "sls"
      ],
      "sources" : [
        "SwiftList.swift"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "SwiftListTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftListTests",
      "path" : "Tests",
      "sources" : [
        "SwiftListTests.swift"
      ],
      "target_dependencies" : [
        "sls"
      ],
      "type" : "test"
    }
  ],
  "tools_version" : "6.1"
}
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
[1/1] Compiling plugin GenerateManual
Building for debugging...
[1/9] Write sources
[4/9] Write sls-entitlement.plist
[5/9] Write swift-version-2F0A5646E1D333AE.txt
[7/11] Compiling ArgumentParserToolInfo ToolInfo.swift
[8/11] Emitting module ArgumentParserToolInfo
[9/49] Compiling ArgumentParser AsyncParsableCommand.swift
[10/49] Compiling ArgumentParser CommandConfiguration.swift
[11/49] Compiling ArgumentParser EnumerableFlag.swift
[12/49] Compiling ArgumentParser ExpressibleByArgument.swift
[13/53] Compiling ArgumentParser ArgumentHelp.swift
[14/53] Compiling ArgumentParser ArgumentVisibility.swift
[15/53] Compiling ArgumentParser CompletionKind.swift
[16/53] Compiling ArgumentParser Errors.swift
[17/53] Compiling ArgumentParser Flag.swift
[18/53] Compiling ArgumentParser NameSpecification.swift
[19/53] Compiling ArgumentParser Option.swift
[20/53] Compiling ArgumentParser OptionGroup.swift
[21/53] Compiling ArgumentParser ParsableArguments.swift
[22/53] Compiling ArgumentParser ParsableArgumentsValidation.swift
[23/53] Compiling ArgumentParser ParsableCommand.swift
[24/53] Compiling ArgumentParser ArgumentDecoder.swift
[25/53] Compiling ArgumentParser BashCompletionsGenerator.swift
[26/53] Compiling ArgumentParser CompletionsGenerator.swift
[27/53] Compiling ArgumentParser FishCompletionsGenerator.swift
[28/53] Compiling ArgumentParser ZshCompletionsGenerator.swift
[29/53] Compiling ArgumentParser Argument.swift
[30/53] Emitting module ArgumentParser
[31/53] Compiling ArgumentParser ArgumentDefinition.swift
[32/53] Compiling ArgumentParser ArgumentSet.swift
[33/53] Compiling ArgumentParser CommandParser.swift
[34/53] Compiling ArgumentParser InputKey.swift
[35/53] Compiling ArgumentParser InputOrigin.swift
[36/53] Compiling ArgumentParser Name.swift
[37/53] Compiling ArgumentParser Parsed.swift
[38/53] Compiling ArgumentParser ParsedValues.swift
[39/53] Compiling ArgumentParser Platform.swift
[40/53] Compiling ArgumentParser SequenceExtensions.swift
[41/53] Compiling ArgumentParser StringExtensions.swift
[42/53] Compiling ArgumentParser Tree.swift
[43/53] Compiling ArgumentParser ParserError.swift
[44/53] Compiling ArgumentParser SplitArguments.swift
[45/53] Compiling ArgumentParser DumpHelpGenerator.swift
[46/53] Compiling ArgumentParser HelpCommand.swift
[47/53] Compiling ArgumentParser HelpGenerator.swift
[48/53] Compiling ArgumentParser MessageInfo.swift
[49/53] Compiling ArgumentParser UsageGenerator.swift
[50/53] Compiling ArgumentParser CollectionExtensions.swift
[51/55] Compiling sls SwiftList.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[52/55] Emitting module sls
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[52/55] Write Objects.LinkFileList
[53/55] Linking sls
[54/55] Applying sls
Build complete! (9.88s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-argument-parser",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-argument-parser"
    }
  ],
  "manifest_display_name" : "sls",
  "name" : "sls",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "sls",
      "targets" : [
        "sls"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "sls",
      "module_type" : "SwiftTarget",
      "name" : "sls",
      "path" : "Sources",
      "product_dependencies" : [
        "ArgumentParser"
      ],
      "product_memberships" : [
        "sls"
      ],
      "sources" : [
        "SwiftList.swift"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "SwiftListTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftListTests",
      "path" : "Tests",
      "sources" : [
        "SwiftListTests.swift"
      ],
      "target_dependencies" : [
        "sls"
      ],
      "type" : "test"
    }
  ],
  "tools_version" : "6.1"
}
Done.