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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 Linux on 26 Apr 2025 16:29:13 UTC.

Swift 6 data race errors: 0

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -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 2>&1

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 /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
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
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/ptrkstr/Slab.git
https://github.com/ptrkstr/Slab.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
    {
      "identity" : "swiftsoup",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.0.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/scinfu/SwiftSoup"
    },
    {
      "identity" : "swift-collections",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-collections.git"
    }
  ],
  "manifest_display_name" : "Slab",
  "name" : "Slab",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Slab",
      "targets" : [
        "Slab"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SlabTests",
      "module_type" : "SwiftTarget",
      "name" : "SlabTests",
      "path" : "Tests/SlabTests",
      "sources" : [
        "SlabTests.swift"
      ],
      "target_dependencies" : [
        "Slab"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Slab",
      "module_type" : "SwiftTarget",
      "name" : "Slab",
      "path" : "Sources/Slab",
      "product_dependencies" : [
        "SwiftSoup",
        "Collections"
      ],
      "product_memberships" : [
        "Slab"
      ],
      "sources" : [
        "Configuration.swift",
        "Slab.swift",
        "SlabError.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -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 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Fetching https://github.com/scinfu/SwiftSoup
Fetching https://github.com/apple/swift-collections.git
[1/3908] Fetching swiftsoup
[3909/20150] Fetching swiftsoup, swift-collections
Fetched https://github.com/scinfu/SwiftSoup from cache (0.39s)
[2924/16242] Fetching swift-collections
Fetched https://github.com/apple/swift-collections.git from cache (0.95s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.1.4 (1.57s)
Computing version for https://github.com/scinfu/SwiftSoup
Computed https://github.com/scinfu/SwiftSoup at 2.8.7 (0.40s)
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
Building for debugging...
[0/11] Write sources
[10/11] Write swift-version-24593BA9C3E375BF.txt
[12/82] Emitting module InternalCollectionsUtilities
[13/84] Compiling InternalCollectionsUtilities UnsafeBufferPointer+Extras.swift
[14/84] Compiling InternalCollectionsUtilities UnsafeMutableBufferPointer+Extras.swift
[15/84] Compiling SwiftSoup DataUtil.swift
[16/84] Compiling SwiftSoup Document.swift
[17/84] Compiling SwiftSoup Comment.swift
[18/84] Compiling SwiftSoup Connection.swift
[19/84] Compiling SwiftSoup ArrayExt.swift
[20/84] Compiling SwiftSoup Attribute.swift
[21/84] Compiling SwiftSoup Attributes.swift
[22/84] Compiling SwiftSoup Collector.swift
[23/84] Compiling SwiftSoup CombiningEvaluator.swift
[24/84] Compiling SwiftSoup BinarySearch.swift
[25/84] Compiling SwiftSoup BooleanAttribute.swift
[26/84] Compiling SwiftSoup CharacterExt.swift
[27/84] Compiling SwiftSoup CharacterReader.swift
[28/84] Compiling SwiftSoup Cleaner.swift
[29/84] Compiling SwiftSoup CssSelector.swift
[30/84] Compiling SwiftSoup DataNode.swift
[32/359] Compiling HashTreeCollections _HashNode+Structural union.swift
[33/359] Compiling HashTreeCollections _HashNode+Subtree Insertions.swift
[34/361] Compiling HashTreeCollections _HashStack.swift
[35/361] Compiling HashTreeCollections _HashNode+Primitive Removals.swift
[36/361] Compiling HashTreeCollections TreeSet+Hashable.swift
[37/361] Compiling HashTreeCollections TreeSet+Sendable.swift
[38/361] Compiling HashTreeCollections TreeSet+Sequence.swift
[39/361] Compiling HashTreeCollections TreeSet+SetAlgebra Initializers.swift
[40/361] Compiling HashTreeCollections TreeSet+SetAlgebra basics.swift
[41/361] Compiling HashTreeCollections TreeSet+SetAlgebra formIntersection.swift
[42/361] Compiling HashTreeCollections TreeSet+SetAlgebra formSymmetricDifference.swift
[43/361] Compiling HashTreeCollections TreeSet+SetAlgebra formUnion.swift
[44/361] Compiling HashTreeCollections TreeSet+SetAlgebra intersection.swift
[45/361] Compiling HashTreeCollections TreeSet+SetAlgebra isDisjoint.swift
[46/371] Compiling HeapModule _HeapNode.swift
[47/371] Emitting module HeapModule
[48/371] Compiling HeapModule Heap+ExpressibleByArrayLiteral.swift
[49/371] Compiling HeapModule Heap+Descriptions.swift
[50/371] Compiling HeapModule Heap+Invariants.swift
[51/371] Compiling HeapModule Heap+UnsafeHandle.swift
[52/371] Compiling HeapModule Heap.swift
[54/372] Compiling HashTreeCollections _HashNode+Subtree Modify.swift
[55/372] Compiling HashTreeCollections _HashNode+Subtree Removals.swift
[56/372] Compiling HashTreeCollections _HashNode+UnsafeHandle.swift
[57/372] Compiling HashTreeCollections _HashNode.swift
[58/372] Compiling HashTreeCollections _HashNode+Primitive Replacement.swift
[59/372] Compiling HashTreeCollections _HashNode+Storage.swift
[60/372] Compiling HashTreeCollections _HashNodeHeader.swift
[61/372] Compiling HashTreeCollections _HashSlot.swift
[62/372] Compiling HashTreeCollections TreeDictionary+Equatable.swift
[63/372] Compiling HashTreeCollections TreeDictionary+ExpressibleByDictionaryLiteral.swift
[64/372] Compiling HashTreeCollections TreeDictionary+Filter.swift
[65/372] Compiling HashTreeCollections TreeDictionary+Hashable.swift
[66/372] Compiling HashTreeCollections TreeDictionary+Initializers.swift
[67/372] Compiling HashTreeCollections TreeDictionary+Keys.swift
[68/372] Compiling DequeModule _DequeSlot.swift
[69/372] Compiling HashTreeCollections TreeDictionary+MapValues.swift
[70/372] Compiling DequeModule _UnsafeWrappedBuffer.swift
[71/372] Compiling HashTreeCollections TreeDictionary+Merge.swift
[72/372] Compiling HashTreeCollections TreeDictionary+Sendable.swift
[73/372] Compiling HashTreeCollections TreeDictionary+Sequence.swift
[74/372] Compiling HashTreeCollections TreeDictionary+Values.swift
[79/372] Compiling HashTreeCollections _HashTreeIterator.swift
[80/372] Compiling HashTreeCollections _HashTreeStatistics.swift
[81/372] Compiling HashTreeCollections _RawHashNode+UnsafeHandle.swift
[82/372] Compiling HashTreeCollections _RawHashNode.swift
[83/372] Compiling HashTreeCollections _UnmanagedHashNode.swift
[84/372] Compiling HashTreeCollections _UnsafePath.swift
[85/372] Compiling HashTreeCollections TreeDictionary+Codable.swift
[86/372] Compiling HashTreeCollections TreeDictionary+Collection.swift
[87/372] Compiling HashTreeCollections TreeDictionary+CustomReflectable.swift
[88/372] Compiling HashTreeCollections TreeDictionary+Debugging.swift
[89/379] Emitting module BitCollections
[90/386] Compiling BitCollections Range+Utilities.swift
[91/386] Compiling BitCollections Slice+Utilities.swift
[92/386] Compiling BitCollections UInt+Tricks.swift
[93/386] Compiling BitCollections _Word.swift
[94/386] Compiling OrderedCollections OrderedSet.swift
[95/386] Compiling OrderedCollections _UnsafeBitset.swift
[96/386] Compiling HashTreeCollections TreeSet+Equatable.swift
[97/386] Compiling HashTreeCollections TreeSet+ExpressibleByArrayLiteral.swift
[98/386] Compiling HashTreeCollections TreeSet+Extras.swift
[99/386] Compiling HashTreeCollections TreeSet+Filter.swift
[100/386] Compiling HashTreeCollections _Bucket.swift
[101/386] Compiling HashTreeCollections _Hash.swift
[102/386] Compiling HashTreeCollections _HashLevel.swift
[103/386] Compiling HashTreeCollections _HashNode+Builder.swift
[104/386] Compiling HashTreeCollections _HashNode+Debugging.swift
[105/386] Compiling HashTreeCollections _HashNode+Initializers.swift
[106/386] Compiling HashTreeCollections _HashNode+Invariants.swift
[107/386] Compiling HashTreeCollections _HashNode+Lookups.swift
[108/386] Compiling HashTreeCollections _HashNode+Primitive Insertions.swift
[114/386] Compiling HashTreeCollections TreeSet+SetAlgebra isEqualSet.swift
[115/386] Compiling HashTreeCollections TreeSet+SetAlgebra isStrictSubset.swift
[116/386] Compiling HashTreeCollections TreeSet+SetAlgebra isStrictSuperset.swift
[117/386] Compiling HashTreeCollections TreeSet+SetAlgebra isSubset.swift
[118/386] Compiling HashTreeCollections TreeSet+SetAlgebra isSuperset.swift
[119/386] Compiling HashTreeCollections TreeSet+SetAlgebra subtract.swift
[120/386] Compiling HashTreeCollections TreeSet+SetAlgebra subtracting.swift
[121/386] Compiling HashTreeCollections TreeSet+SetAlgebra symmetricDifference.swift
[122/386] Compiling HashTreeCollections TreeSet+SetAlgebra union.swift
[123/386] Compiling HashTreeCollections TreeSet.swift
[132/386] Compiling HashTreeCollections _HashNode+Structural subtracting.swift
[133/386] Compiling HashTreeCollections _HashNode+Structural symmetricDifference.swift
[142/386] Compiling HashTreeCollections _HashNode+Structural intersection.swift
[143/386] Compiling HashTreeCollections _HashNode+Structural isDisjoint.swift
[144/386] Compiling HashTreeCollections _HashNode+Structural isEqualSet.swift
[145/386] Compiling HashTreeCollections _HashNode+Structural isSubset.swift
[146/386] Compiling HashTreeCollections _HashNode+Structural mapValues.swift
[147/386] Compiling HashTreeCollections _HashNode+Structural merge.swift
[148/386] Compiling HashTreeCollections _AncestorHashSlots.swift
[149/386] Compiling HashTreeCollections _Bitmap.swift
[158/386] Emitting module DequeModule
[198/387] Emitting module OrderedCollections
[227/396] Compiling BitCollections BitSet.Index.swift
[228/396] Compiling BitCollections BitSet._UnsafeHandle.swift
[229/396] Compiling BitCollections BitSet.swift
[302/397] Emitting module SwiftSoup
[357/405] Emitting module HashTreeCollections
[380/406] Emitting module _RopeModule
[382/406] Compiling _RopeModule Rope+Join.swift
[383/406] Compiling _RopeModule Rope+MutatingForEach.swift
[384/406] Compiling _RopeModule Rope+Remove.swift
[385/406] Compiling _RopeModule Rope+RemoveSubrange.swift
[386/406] Compiling _RopeModule Rope+Split.swift
[387/406] Compiling _RopeModule Optional Utilities.swift
[388/406] Compiling _RopeModule String Utilities.swift
[389/406] Compiling _RopeModule String.Index+ABI.swift
[390/406] Compiling _RopeModule _CharacterRecognizer.swift
[401/409] Compiling SwiftSoup UTF8Arrays.swift
[402/409] Compiling SwiftSoup UnfairLock.swift
[403/409] Compiling SwiftSoup UnicodeScalar.swift
[404/409] Compiling SwiftSoup Validate.swift
[405/409] Compiling SwiftSoup Whitelist.swift
[406/409] Compiling SwiftSoup XmlDeclaration.swift
[407/409] Compiling SwiftSoup XmlTreeBuilder.swift
[408/409] Emitting module Collections
[409/409] Compiling Collections Collections.swift
[412/415] Compiling Slab SlabError.swift
[413/415] Compiling Slab Slab.swift
[414/415] Compiling Slab Configuration.swift
[415/415] Emitting module Slab
Build complete! (22.78s)
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" : "/host/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"
}
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Done.