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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 Slab, reference develop (cddcfa), with Swift 6.1 for macOS (SPM) on 26 Apr 2025 16:34:06 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/ptrkstr/Slab.git
Reference: develop
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/ptrkstr/Slab
 * branch            develop    -> FETCH_HEAD
 * [new branch]      develop    -> origin/develop
HEAD is now at cddcfa9 Update readme
Cloned https://github.com/ptrkstr/Slab.git
Revision (git rev-parse @):
cddcfa99626ec372f31f935b85103aaf8769f4ca
SUCCESS checkout https://github.com/ptrkstr/Slab.git at develop
Fetching https://github.com/scinfu/SwiftSoup
Fetching https://github.com/apple/swift-collections.git from cache
Fetched https://github.com/apple/swift-collections.git from cache (0.75s)
[1/3908] Fetching swiftsoup
Fetched https://github.com/scinfu/SwiftSoup from cache (1.72s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.0.1 (2.34s)
Computing version for https://github.com/scinfu/SwiftSoup
Computed https://github.com/scinfu/SwiftSoup at 2.3.3 (2.76s)
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.0.1
Creating working copy for https://github.com/scinfu/SwiftSoup
Working copy of https://github.com/scinfu/SwiftSoup resolved at 2.3.3
========================================
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": "slab",
      "name": "Slab",
      "url": "https://github.com/ptrkstr/Slab.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Slab",
      "dependencies": [
        {
          "identity": "swiftsoup",
          "name": "SwiftSoup",
          "url": "https://github.com/scinfu/SwiftSoup",
          "version": "2.8.7",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/SwiftSoup",
          "dependencies": [
          ]
        },
        {
          "identity": "swift-collections",
          "name": "swift-collections",
          "url": "https://github.com/apple/swift-collections.git",
          "version": "1.1.4",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-collections",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/ptrkstr/Slab.git
[2/106] Fetching slab
Fetched https://github.com/ptrkstr/Slab.git from cache (0.62s)
Fetching https://github.com/apple/swift-collections.git from cache
Fetching https://github.com/scinfu/SwiftSoup from cache
Fetched https://github.com/scinfu/SwiftSoup from cache (0.48s)
Fetched https://github.com/apple/swift-collections.git from cache (0.53s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.1.4 (1.29s)
Computing version for https://github.com/scinfu/SwiftSoup
Computed https://github.com/scinfu/SwiftSoup at 2.8.7 (0.48s)
Creating working copy for https://github.com/scinfu/SwiftSoup
Working copy of https://github.com/scinfu/SwiftSoup resolved at 2.8.7
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.1.4
Creating working copy for https://github.com/ptrkstr/Slab.git
Working copy of https://github.com/ptrkstr/Slab.git resolved at develop (cddcfa9)
warning: '.resolve-product-dependencies': dependency 'slab' is not used by any target
Found 2 product dependencies
  - SwiftSoup
  - swift-collections
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/ptrkstr/Slab.git
https://github.com/ptrkstr/Slab.git
{
  "dependencies" : [
    {
      "identity" : "swiftsoup",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.0.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/scinfu/SwiftSoup"
    },
    {
      "identity" : "swift-collections",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-collections.git"
    }
  ],
  "manifest_display_name" : "Slab",
  "name" : "Slab",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Slab",
      "targets" : [
        "Slab"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SlabTests",
      "module_type" : "SwiftTarget",
      "name" : "SlabTests",
      "path" : "Tests/SlabTests",
      "sources" : [
        "SlabTests.swift"
      ],
      "target_dependencies" : [
        "Slab"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Slab",
      "module_type" : "SwiftTarget",
      "name" : "Slab",
      "path" : "Sources/Slab",
      "product_dependencies" : [
        "SwiftSoup",
        "Collections"
      ],
      "product_memberships" : [
        "Slab"
      ],
      "sources" : [
        "Configuration.swift",
        "Slab.swift",
        "SlabError.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
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...
[0/6] Write sources
[5/6] Write swift-version-2F0A5646E1D333AE.txt
[7/123] Compiling OrderedCollections OrderedDictionary.swift
[8/123] Compiling OrderedCollections OrderedDictionary+Equatable.swift
[9/124] Compiling OrderedCollections OrderedSet+Equatable.swift
[10/124] Compiling OrderedCollections OrderedSet+ExpressibleByArrayLiteral.swift
[11/124] Compiling OrderedCollections OrderedSet+Hashable.swift
[12/124] Compiling OrderedCollections OrderedSet+Initializers.swift
[13/124] Compiling OrderedCollections OrderedSet+Insertions.swift
[14/129] Compiling SwiftSoup CssSelector.swift
[15/129] Compiling SwiftSoup DataNode.swift
[16/129] Compiling OrderedCollections OrderedDictionary+ExpressibleByDictionaryLiteral.swift
[17/129] Compiling OrderedCollections OrderedDictionary+Hashable.swift
[18/129] Compiling DequeModule _UnsafeWrappedBuffer.swift
[19/129] Compiling OrderedCollections _HashTable+Testing.swift
[20/129] Compiling OrderedCollections _HashTable+UnsafeHandle.swift
[21/129] Compiling OrderedCollections _HashTable.swift
[22/129] Compiling OrderedCollections _Hashtable+Header.swift
[23/129] Compiling OrderedCollections OrderedDictionary+Codable.swift
[24/129] Compiling OrderedCollections OrderedDictionary+CustomDebugStringConvertible.swift
[25/129] Compiling OrderedCollections _HashTable+Bucket.swift
[26/129] Compiling OrderedCollections _HashTable+BucketIterator.swift
[27/129] Emitting module DequeModule
[28/129] Compiling OrderedCollections _HashTable+Constants.swift
[29/129] Compiling OrderedCollections _HashTable+CustomStringConvertible.swift
[30/129] Compiling OrderedCollections OrderedDictionary+Partial MutableCollection.swift
[31/129] Compiling SwiftSoup Connection.swift
[32/129] Compiling OrderedCollections OrderedSet+Invariants.swift
[33/129] Compiling OrderedCollections OrderedSet+Partial MutableCollection.swift
[34/129] Compiling OrderedCollections OrderedSet+Partial RangeReplaceableCollection.swift
[35/129] Compiling OrderedCollections OrderedSet+Partial SetAlgebra+Basics.swift
[36/129] Compiling OrderedCollections OrderedSet+Partial SetAlgebra+Operations.swift
[37/129] Compiling OrderedCollections OrderedDictionary+CustomReflectable.swift
[38/129] Compiling OrderedCollections OrderedDictionary+CustomStringConvertible.swift
[39/129] Compiling OrderedCollections OrderedDictionary+Deprecations.swift
[40/129] Compiling OrderedCollections OrderedDictionary+Elements+SubSequence.swift
[41/129] Compiling OrderedCollections OrderedDictionary+Elements.swift
[42/129] Compiling OrderedCollections OrderedSet+Codable.swift
[43/129] Compiling OrderedCollections OrderedSet+CustomDebugStringConvertible.swift
[44/129] Compiling OrderedCollections OrderedSet+CustomReflectable.swift
[45/129] Compiling OrderedCollections OrderedSet+CustomStringConvertible.swift
[46/129] Compiling OrderedCollections OrderedSet+Diffing.swift
[47/129] Compiling OrderedCollections OrderedSet+Partial SetAlgebra+Predicates.swift
[48/129] Compiling OrderedCollections OrderedSet+RandomAccessCollection.swift
[49/129] Compiling OrderedCollections OrderedSet+ReserveCapacity.swift
[50/129] Compiling OrderedCollections OrderedSet+SubSequence.swift
[51/129] Compiling OrderedCollections OrderedSet+Testing.swift
[70/129] Compiling OrderedCollections OrderedDictionary+Initializers.swift
[71/129] Compiling OrderedCollections OrderedDictionary+Invariants.swift
[72/129] Emitting module OrderedCollections
[73/129] Compiling OrderedCollections OrderedSet+UnorderedView.swift
[74/129] Compiling OrderedCollections OrderedSet+UnstableInternals.swift
[75/129] Compiling OrderedCollections OrderedSet.swift
[76/129] Compiling OrderedCollections RandomAccessCollection+Offsets.swift
[77/129] Compiling OrderedCollections _UnsafeBitset.swift
[78/131] Compiling Collections Collections.swift
[79/131] Emitting module Collections
[95/136] Compiling SwiftSoup TreeBuilder.swift
[113/136] Emitting module SwiftSoup
[132/136] Compiling SwiftSoup UnicodeScalar.swift
[133/136] Compiling SwiftSoup Validate.swift
[134/136] Compiling SwiftSoup Whitelist.swift
[135/136] Compiling SwiftSoup XmlDeclaration.swift
[136/136] Compiling SwiftSoup XmlTreeBuilder.swift
[137/140] Compiling Slab SlabError.swift
[138/140] Compiling Slab Configuration.swift
[139/140] Compiling Slab Slab.swift
[140/140] Emitting module Slab
Build complete! (8.18s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swiftsoup",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.0.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/scinfu/SwiftSoup"
    },
    {
      "identity" : "swift-collections",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-collections.git"
    }
  ],
  "manifest_display_name" : "Slab",
  "name" : "Slab",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Slab",
      "targets" : [
        "Slab"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SlabTests",
      "module_type" : "SwiftTarget",
      "name" : "SlabTests",
      "path" : "Tests/SlabTests",
      "sources" : [
        "SlabTests.swift"
      ],
      "target_dependencies" : [
        "Slab"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Slab",
      "module_type" : "SwiftTarget",
      "name" : "Slab",
      "path" : "Sources/Slab",
      "product_dependencies" : [
        "SwiftSoup",
        "Collections"
      ],
      "product_memberships" : [
        "Slab"
      ],
      "sources" : [
        "Configuration.swift",
        "Slab.swift",
        "SlabError.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
Done.