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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 1.0.7 (6da22a), with Swift 6.1 for Linux on 26 Apr 2025 16:27:53 UTC.

Swift 6 data race errors: 0

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/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: 1.0.7
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
 * tag               1.0.7      -> FETCH_HEAD
HEAD is now at 6da22ae Add localized descriptions
Cloned https://github.com/ptrkstr/Slab.git
Revision (git rev-parse @):
6da22ae415e93017ed345e6fc3eadcc4c4c3a4f0
SUCCESS checkout https://github.com/ptrkstr/Slab.git at 1.0.7
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/ptrkstr/Slab.git
https://github.com/ptrkstr/Slab.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
    {
      "identity" : "swiftsoup",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.0.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/scinfu/SwiftSoup"
    },
    {
      "identity" : "swift-collections",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-collections.git"
    }
  ],
  "manifest_display_name" : "Slab",
  "name" : "Slab",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Slab",
      "targets" : [
        "Slab"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SlabTests",
      "module_type" : "SwiftTarget",
      "name" : "SlabTests",
      "path" : "Tests/SlabTests",
      "sources" : [
        "SlabTests.swift"
      ],
      "target_dependencies" : [
        "Slab"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Slab",
      "module_type" : "SwiftTarget",
      "name" : "Slab",
      "path" : "Sources/Slab",
      "product_dependencies" : [
        "SwiftSoup",
        "Collections"
      ],
      "product_memberships" : [
        "Slab"
      ],
      "sources" : [
        "Configuration.swift",
        "Slab.swift",
        "SlabError.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$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
[353/20150] Fetching swiftsoup, swift-collections
Fetched https://github.com/scinfu/SwiftSoup from cache (2.50s)
Fetched https://github.com/apple/swift-collections.git from cache (2.54s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.1.4 (3.52s)
Computing version for https://github.com/scinfu/SwiftSoup
Computed https://github.com/scinfu/SwiftSoup at 2.8.7 (0.69s)
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/scinfu/SwiftSoup
Working copy of https://github.com/scinfu/SwiftSoup resolved at 2.8.7
Building for debugging...
[0/11] Write sources
[10/11] Write swift-version-24593BA9C3E375BF.txt
[12/82] Emitting module InternalCollectionsUtilities
[13/84] Compiling InternalCollectionsUtilities _SortedCollection.swift
[14/84] Compiling InternalCollectionsUtilities _UniqueCollection.swift
[15/84] Compiling InternalCollectionsUtilities UnsafeMutableBufferPointer+SE-0370.swift
[16/84] Compiling InternalCollectionsUtilities UnsafeMutablePointer+SE-0370.swift
[17/84] Compiling InternalCollectionsUtilities UnsafeRawPointer extensions.swift
[18/84] Compiling InternalCollectionsUtilities FixedWidthInteger+roundUpToPowerOfTwo.swift
[19/84] Compiling SwiftSoup Attribute.swift
[20/84] Compiling SwiftSoup Attributes.swift
[21/84] Compiling InternalCollectionsUtilities UnsafeBufferPointer+Extras.swift
[22/84] Compiling InternalCollectionsUtilities UnsafeMutableBufferPointer+Extras.swift
[23/84] Compiling InternalCollectionsUtilities RandomAccessCollection+Offsets.swift
[24/84] Compiling InternalCollectionsUtilities Specialize.swift
[25/84] Compiling InternalCollectionsUtilities Debugging.swift
[26/84] Compiling InternalCollectionsUtilities Descriptions.swift
[27/84] Compiling InternalCollectionsUtilities UInt+reversed.swift
[28/84] Compiling InternalCollectionsUtilities _UnsafeBitSet+Index.swift
[29/84] Compiling InternalCollectionsUtilities _UnsafeBitSet+_Word.swift
[30/84] Compiling InternalCollectionsUtilities _UnsafeBitSet.swift
[32/325] Compiling _RopeModule BigString+Debugging.swift
[33/325] Compiling _RopeModule BigString+Index.swift
[34/361] Compiling _RopeModule BigString+Chunk+Counts.swift
[35/361] Compiling _RopeModule BigString+Chunk+Description.swift
[36/361] Compiling HeapModule Heap+Descriptions.swift
[37/361] Compiling HeapModule Heap+ExpressibleByArrayLiteral.swift
[38/361] Compiling HeapModule Heap.swift
[39/361] Compiling HeapModule _HeapNode.swift
[40/361] Compiling _RopeModule BigString+Chunk+RopeElement.swift
[41/361] Compiling _RopeModule BigString+Chunk+Splitting.swift
[42/361] Compiling _RopeModule BigString+Chunk+Indexing by Characters.swift
[43/361] Compiling _RopeModule BigString+Chunk+Indexing by UTF16.swift
[44/361] Compiling HeapModule Heap+Invariants.swift
[45/361] Compiling HeapModule Heap+UnsafeHandle.swift
[46/361] Compiling DequeModule _DequeSlot.swift
[47/361] Compiling DequeModule _UnsafeWrappedBuffer.swift
[48/361] Emitting module HeapModule
[49/362] Compiling _RopeModule _RopeItem.swift
[50/362] Compiling _RopeModule _RopePath.swift
[51/362] Compiling HashTreeCollections TreeSet+Sequence.swift
[52/362] Compiling HashTreeCollections TreeSet+SetAlgebra Initializers.swift
[53/362] Compiling HashTreeCollections TreeSet+SetAlgebra basics.swift
[54/362] Compiling HashTreeCollections TreeSet+SetAlgebra formIntersection.swift
[55/362] Compiling HashTreeCollections TreeSet+SetAlgebra formSymmetricDifference.swift
[56/362] Compiling HashTreeCollections TreeSet+SetAlgebra formUnion.swift
[57/362] Compiling HashTreeCollections TreeSet+SetAlgebra intersection.swift
[58/362] Compiling HashTreeCollections TreeSet+SetAlgebra isDisjoint.swift
[59/362] Compiling _RopeModule BigString+ExpressibleByStringLiteral.swift
[60/362] Compiling _RopeModule BigString+Hashing.swift
[61/362] Compiling _RopeModule BigString+LosslessStringConvertible.swift
[62/362] Compiling _RopeModule BigString+RangeReplaceableCollection.swift
[63/362] Compiling _RopeModule BigString+Sequence.swift
[64/362] Compiling _RopeModule BigString+TextOutputStream.swift
[65/362] Compiling _RopeModule BigString+Append.swift
[67/379] Compiling _RopeModule BigString+UnicodeScalarView.swift
[68/379] Compiling _RopeModule BigSubstring+UTF16View.swift
[69/379] Compiling _RopeModule BigSubstring+UTF8View.swift
[70/379] Compiling _RopeModule BigSubstring+UnicodeScalarView.swift
[71/379] Compiling _RopeModule BigSubstring.swift
[72/379] Compiling _RopeModule Rope+Builder.swift
[73/379] Compiling _RopeModule Rope+Debugging.swift
[74/379] Compiling _RopeModule Rope+Invariants.swift
[75/379] Compiling _RopeModule Rope+_Node.swift
[76/379] Compiling _RopeModule _RopeVersion.swift
[77/379] Compiling _RopeModule Rope+Collection.swift
[78/379] Compiling _RopeModule Rope+Index.swift
[79/379] Compiling BitCollections BitSet.Index.swift
[80/379] Compiling BitCollections BitSet._UnsafeHandle.swift
[81/386] Compiling _RopeModule BigString+Builder.swift
[82/386] Compiling _RopeModule BigString+Contents.swift
[83/386] Compiling _RopeModule BigString+Chunk.swift
[84/386] Compiling _RopeModule BigString+BidirectionalCollection.swift
[95/386] Compiling _RopeModule BigString+Chunk+Append and Insert.swift
[96/386] Compiling _RopeModule BigString+Chunk+Breaks.swift
[97/386] Emitting module DequeModule
[98/387] Compiling _RopeModule BigString+Iterators.swift
[99/387] Compiling _RopeModule BigString+Metrics.swift
[100/387] Compiling _RopeModule BigString+Summary.swift
[101/387] Compiling _RopeModule BigString.swift
[102/387] Compiling _RopeModule BigString+Comparable.swift
[103/387] Compiling _RopeModule BigString+CustomDebugStringConvertible.swift
[104/387] Compiling _RopeModule BigString+CustomStringConvertible.swift
[105/387] Compiling _RopeModule BigString+Equatable.swift
[122/387] Compiling _RopeModule BigString+Initializers.swift
[123/387] Compiling _RopeModule BigString+Insert.swift
[124/387] Compiling _RopeModule BigString+Managing Breaks.swift
[125/387] Compiling _RopeModule BigString+RemoveSubrange.swift
[126/387] Compiling _RopeModule BigString+ReplaceSubrange.swift
[127/387] Compiling _RopeModule BigString+Split.swift
[128/387] Compiling _RopeModule Range+BigString.swift
[129/387] Compiling _RopeModule BigString+UTF16View.swift
[130/387] Compiling _RopeModule BigString+UTF8View.swift
[163/387] Compiling HashTreeCollections TreeSet+SetAlgebra isEqualSet.swift
[164/387] Compiling HashTreeCollections TreeSet+SetAlgebra isStrictSubset.swift
[165/387] Compiling HashTreeCollections TreeSet+SetAlgebra isStrictSuperset.swift
[166/387] Compiling HashTreeCollections TreeSet+SetAlgebra isSubset.swift
[167/387] Compiling HashTreeCollections TreeSet+SetAlgebra isSuperset.swift
[168/387] Compiling HashTreeCollections TreeSet+SetAlgebra subtract.swift
[169/387] Compiling HashTreeCollections TreeSet+SetAlgebra subtracting.swift
[170/387] Compiling HashTreeCollections TreeSet+SetAlgebra symmetricDifference.swift
[171/387] Compiling HashTreeCollections TreeSet+SetAlgebra union.swift
[172/387] Compiling HashTreeCollections TreeSet.swift
[189/387] Emitting module BitCollections
[208/387] Compiling OrderedCollections OrderedSet+Sendable.swift
[209/387] Compiling OrderedCollections OrderedSet+SubSequence.swift
[210/387] Compiling OrderedCollections OrderedSet+Testing.swift
[211/387] Compiling OrderedCollections OrderedSet+UnorderedView.swift
[212/387] Compiling OrderedCollections OrderedSet+UnstableInternals.swift
[213/388] Emitting module _RopeModule
[216/397] Compiling OrderedCollections OrderedSet.swift
[217/397] Compiling OrderedCollections _UnsafeBitset.swift
[218/397] Compiling _RopeModule Rope.swift
[219/397] Compiling _RopeModule RopeElement.swift
[220/397] Compiling _RopeModule RopeMetric.swift
[221/397] Compiling _RopeModule RopeSummary.swift
[259/404] Compiling SwiftSoup UnfairLock.swift
[260/404] Compiling SwiftSoup UnicodeScalar.swift
[261/404] Compiling SwiftSoup Validate.swift
[262/404] Compiling SwiftSoup Whitelist.swift
[263/404] Compiling SwiftSoup XmlDeclaration.swift
[264/404] Compiling SwiftSoup XmlTreeBuilder.swift
[266/404] Emitting module OrderedCollections
[298/405] Emitting module SwiftSoup
[340/405] Compiling SwiftSoup UTF8Arrays.swift
[348/406] Compiling _RopeModule Rope+Join.swift
[349/406] Compiling _RopeModule Rope+MutatingForEach.swift
[350/406] Compiling _RopeModule Rope+Remove.swift
[351/406] Compiling _RopeModule Rope+RemoveSubrange.swift
[352/406] Compiling _RopeModule Rope+Split.swift
[353/406] Compiling _RopeModule Optional Utilities.swift
[354/406] Compiling _RopeModule String Utilities.swift
[355/406] Compiling _RopeModule String.Index+ABI.swift
[356/406] Compiling _RopeModule _CharacterRecognizer.swift
[357/406] Emitting module HashTreeCollections
[409/410] Emitting module Collections
[410/410] Compiling Collections Collections.swift
[412/415] Compiling Slab Configuration.swift
[413/415] Emitting module Slab
[414/415] Compiling Slab SlabError.swift
[415/415] Compiling Slab Slab.swift
Build complete! (36.99s)
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.