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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 xmlwrangler, reference main (26d896), with Swift 6.1 for macOS (SPM) on 29 Apr 2025 10:08:53 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

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/sersoft-gmbh/xmlwrangler.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/sersoft-gmbh/xmlwrangler
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 26d8961 Fix build on older Swift versions
Cloned https://github.com/sersoft-gmbh/xmlwrangler.git
Revision (git rev-parse @):
26d896107a0cd1b8a523cc5c0425ad54aced31a7
SUCCESS checkout https://github.com/sersoft-gmbh/xmlwrangler.git at main
Fetching https://github.com/swiftlang/swift-docc-plugin from cache
Fetching https://github.com/swiftlang/swift-docc-symbolkit from cache
Fetched https://github.com/swiftlang/swift-docc-plugin from cache (0.84s)
Computing version for https://github.com/swiftlang/swift-docc-plugin
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (0.84s)
Computed https://github.com/swiftlang/swift-docc-plugin at 1.4.3 (1.80s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (0.64s)
Creating working copy for https://github.com/swiftlang/swift-docc-plugin
Working copy of https://github.com/swiftlang/swift-docc-plugin resolved at 1.4.3
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
========================================
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": "xmlwrangler",
      "name": "xmlwrangler",
      "url": "https://github.com/sersoft-gmbh/xmlwrangler.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/xmlwrangler",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/sersoft-gmbh/xmlwrangler.git
[1/6786] Fetching xmlwrangler
Fetched https://github.com/sersoft-gmbh/xmlwrangler.git from cache (1.09s)
Creating working copy for https://github.com/sersoft-gmbh/xmlwrangler.git
Working copy of https://github.com/sersoft-gmbh/xmlwrangler.git resolved at main (26d8961)
warning: '.resolve-product-dependencies': dependency 'xmlwrangler' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/sersoft-gmbh/xmlwrangler.git
https://github.com/sersoft-gmbh/xmlwrangler.git
{
  "dependencies" : [
    {
      "identity" : "swift-docc-plugin",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/swiftlang/swift-docc-plugin"
    }
  ],
  "manifest_display_name" : "xmlwrangler",
  "name" : "xmlwrangler",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    },
    {
      "name" : "maccatalyst",
      "version" : "13.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "XMLWrangler",
      "targets" : [
        "XMLWrangler"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "XMLWranglerTests",
      "module_type" : "SwiftTarget",
      "name" : "XMLWranglerTests",
      "path" : "Tests/XMLWranglerTests",
      "sources" : [
        "ErrorsTests.swift",
        "GitHubIssueTests.swift",
        "LookupErrorHelpers.swift",
        "ParsingTests.swift",
        "SerializationTests.swift",
        "XMLContentBuilderTests.swift",
        "XMLElement+AttributesTests.swift",
        "XMLElement+ContentTests.swift",
        "XMLElement+LookupTests.swift",
        "XMLElement+MutationTests.swift",
        "XMLElementContent+LookupTests.swift",
        "XMLElementContentElementTests.swift",
        "XMLElementProtocolsTests.swift",
        "XMLElementTests.swift"
      ],
      "target_dependencies" : [
        "XMLWrangler"
      ],
      "type" : "test"
    },
    {
      "c99name" : "XMLWrangler",
      "module_type" : "SwiftTarget",
      "name" : "XMLWrangler",
      "path" : "Sources/XMLWrangler",
      "product_memberships" : [
        "XMLWrangler"
      ],
      "sources" : [
        "Helpers.swift",
        "LookupError.swift",
        "Parsing.swift",
        "Serialization.swift",
        "XMLContentBuilder.swift",
        "XMLElement+Attributes.swift",
        "XMLElement+Content.swift",
        "XMLElement+Lookup.swift",
        "XMLElement+Mutation.swift",
        "XMLElement.swift",
        "XMLElementContent+Lookup.swift",
        "XMLElementContent+Mutation.swift",
        "XMLElementContentElement+InternalHelpers.swift",
        "XMLElementProtocols.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
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
[1/1] Compiling plugin Swift-DocC Preview
[2/2] Compiling plugin Swift-DocC
Building for debugging...
[2/4] Write sources
[3/4] Write swift-version-2F0A5646E1D333AE.txt
[5/18] Compiling XMLWrangler XMLElementContentElement+InternalHelpers.swift
<unknown>:0: warning: upcoming feature 'GlobalConcurrency' is already enabled as of Swift version 6
[6/18] Compiling XMLWrangler XMLElementContent+Lookup.swift
<unknown>:0: warning: upcoming feature 'GlobalConcurrency' is already enabled as of Swift version 6
[7/19] Compiling XMLWrangler XMLElement+Mutation.swift
<unknown>:0: warning: upcoming feature 'GlobalConcurrency' is already enabled as of Swift version 6
[8/19] Compiling XMLWrangler XMLElement+Content.swift
<unknown>:0: warning: upcoming feature 'GlobalConcurrency' is already enabled as of Swift version 6
[9/19] Compiling XMLWrangler XMLElement+Lookup.swift
<unknown>:0: warning: upcoming feature 'GlobalConcurrency' is already enabled as of Swift version 6
[10/19] Compiling XMLWrangler XMLElement.swift
<unknown>:0: warning: upcoming feature 'GlobalConcurrency' is already enabled as of Swift version 6
[11/19] Compiling XMLWrangler XMLElementContent+Mutation.swift
<unknown>:0: warning: upcoming feature 'GlobalConcurrency' is already enabled as of Swift version 6
[12/19] Compiling XMLWrangler XMLContentBuilder.swift
<unknown>:0: warning: upcoming feature 'GlobalConcurrency' is already enabled as of Swift version 6
[13/19] Compiling XMLWrangler XMLElement+Attributes.swift
<unknown>:0: warning: upcoming feature 'GlobalConcurrency' is already enabled as of Swift version 6
[14/19] Compiling XMLWrangler XMLElementProtocols.swift
<unknown>:0: warning: upcoming feature 'GlobalConcurrency' is already enabled as of Swift version 6
[15/19] Compiling XMLWrangler Helpers.swift
<unknown>:0: warning: upcoming feature 'GlobalConcurrency' is already enabled as of Swift version 6
[16/19] Compiling XMLWrangler LookupError.swift
<unknown>:0: warning: upcoming feature 'GlobalConcurrency' is already enabled as of Swift version 6
[17/19] Emitting module XMLWrangler
<unknown>:0: warning: upcoming feature 'GlobalConcurrency' is already enabled as of Swift version 6
[18/19] Compiling XMLWrangler Parsing.swift
<unknown>:0: warning: upcoming feature 'GlobalConcurrency' is already enabled as of Swift version 6
[19/19] Compiling XMLWrangler Serialization.swift
<unknown>:0: warning: upcoming feature 'GlobalConcurrency' is already enabled as of Swift version 6
Build complete! (13.68s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-docc-plugin",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/swiftlang/swift-docc-plugin"
    }
  ],
  "manifest_display_name" : "xmlwrangler",
  "name" : "xmlwrangler",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    },
    {
      "name" : "maccatalyst",
      "version" : "13.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "XMLWrangler",
      "targets" : [
        "XMLWrangler"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "XMLWranglerTests",
      "module_type" : "SwiftTarget",
      "name" : "XMLWranglerTests",
      "path" : "Tests/XMLWranglerTests",
      "sources" : [
        "ErrorsTests.swift",
        "GitHubIssueTests.swift",
        "LookupErrorHelpers.swift",
        "ParsingTests.swift",
        "SerializationTests.swift",
        "XMLContentBuilderTests.swift",
        "XMLElement+AttributesTests.swift",
        "XMLElement+ContentTests.swift",
        "XMLElement+LookupTests.swift",
        "XMLElement+MutationTests.swift",
        "XMLElementContent+LookupTests.swift",
        "XMLElementContentElementTests.swift",
        "XMLElementProtocolsTests.swift",
        "XMLElementTests.swift"
      ],
      "target_dependencies" : [
        "XMLWrangler"
      ],
      "type" : "test"
    },
    {
      "c99name" : "XMLWrangler",
      "module_type" : "SwiftTarget",
      "name" : "XMLWrangler",
      "path" : "Sources/XMLWrangler",
      "product_memberships" : [
        "XMLWrangler"
      ],
      "sources" : [
        "Helpers.swift",
        "LookupError.swift",
        "Parsing.swift",
        "Serialization.swift",
        "XMLContentBuilder.swift",
        "XMLElement+Attributes.swift",
        "XMLElement+Content.swift",
        "XMLElement+Lookup.swift",
        "XMLElement+Mutation.swift",
        "XMLElement.swift",
        "XMLElementContent+Lookup.swift",
        "XMLElementContent+Mutation.swift",
        "XMLElementContentElement+InternalHelpers.swift",
        "XMLElementProtocols.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
Done.