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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 Tree, reference main (3021e4), with Swift 6.1 for Linux on 30 Apr 2025 05:27:44 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: 4.61.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/mattcox/Tree.git
Reference: main
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/mattcox/Tree
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 3021e42 Merge pull request #2 from Jomy10/main
Cloned https://github.com/mattcox/Tree.git
Revision (git rev-parse @):
3021e4280573866c3d92e5104916640a9bcc9788
SUCCESS checkout https://github.com/mattcox/Tree.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/mattcox/Tree.git
https://github.com/mattcox/Tree.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
    {
      "identity" : "swift-collections",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.1.4",
            "upper_bound" : "1.2.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-collections"
    }
  ],
  "manifest_display_name" : "Tree",
  "name" : "Tree",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "13.0"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "Tree",
      "targets" : [
        "Tree"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "TreeTests",
      "module_type" : "SwiftTarget",
      "name" : "TreeTests",
      "path" : "Tests/TreeTests",
      "sources" : [
        "NodeIteratorTests.swift",
        "NodeTests.swift",
        "Test.swift",
        "TreeBuilderTests.swift"
      ],
      "target_dependencies" : [
        "Tree"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Tree",
      "module_type" : "SwiftTarget",
      "name" : "Tree",
      "path" : "Sources/Tree",
      "product_dependencies" : [
        "Collections"
      ],
      "product_memberships" : [
        "Tree"
      ],
      "sources" : [
        "Node.swift",
        "NodeIterator.swift",
        "TreeBuilder.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$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/apple/swift-collections
[1/16269] Fetching swift-collections
Fetched https://github.com/apple/swift-collections from cache (0.94s)
Computing version for https://github.com/apple/swift-collections
Computed https://github.com/apple/swift-collections at 1.1.4 (1.58s)
Creating working copy for https://github.com/apple/swift-collections
Working copy of https://github.com/apple/swift-collections resolved at 1.1.4
Building for debugging...
[0/10] Write sources
[9/10] Write swift-version-24593BA9C3E375BF.txt
[11/27] Emitting module InternalCollectionsUtilities
[12/29] Compiling InternalCollectionsUtilities UnsafeBufferPointer+Extras.swift
[13/29] Compiling InternalCollectionsUtilities UnsafeMutableBufferPointer+Extras.swift
[14/29] Compiling InternalCollectionsUtilities UInt+reversed.swift
[15/29] Compiling InternalCollectionsUtilities _UnsafeBitSet+Index.swift
[16/29] Compiling InternalCollectionsUtilities Debugging.swift
[17/29] Compiling InternalCollectionsUtilities Descriptions.swift
[18/29] Compiling InternalCollectionsUtilities RandomAccessCollection+Offsets.swift
[19/29] Compiling InternalCollectionsUtilities Specialize.swift
[20/29] Compiling InternalCollectionsUtilities _SortedCollection.swift
[21/29] Compiling InternalCollectionsUtilities _UniqueCollection.swift
[22/29] Compiling InternalCollectionsUtilities FixedWidthInteger+roundUpToPowerOfTwo.swift
[23/29] Compiling InternalCollectionsUtilities Integer rank.swift
[24/29] Compiling InternalCollectionsUtilities UInt+first and last set bit.swift
[25/29] Compiling InternalCollectionsUtilities UnsafeMutableBufferPointer+SE-0370.swift
[26/29] Compiling InternalCollectionsUtilities UnsafeMutablePointer+SE-0370.swift
[27/29] Compiling InternalCollectionsUtilities UnsafeRawPointer extensions.swift
[28/29] Compiling InternalCollectionsUtilities _UnsafeBitSet+_Word.swift
[29/29] Compiling InternalCollectionsUtilities _UnsafeBitSet.swift
[31/304] Compiling HeapModule Heap+ExpressibleByArrayLiteral.swift
[32/304] Compiling HeapModule Heap+Invariants.swift
[33/304] Compiling HeapModule Heap+UnsafeHandle.swift
[34/304] Compiling OrderedCollections _HashTable+Testing.swift
[35/304] Compiling OrderedCollections _HashTable+UnsafeHandle.swift
[36/306] Compiling HeapModule Heap.swift
[37/306] Compiling HeapModule _HeapNode.swift
[38/306] Compiling OrderedCollections OrderedSet+CustomReflectable.swift
[39/306] Compiling OrderedCollections OrderedSet+Descriptions.swift
[40/306] Compiling OrderedCollections OrderedSet+Diffing.swift
[41/306] Compiling OrderedCollections OrderedSet+Equatable.swift
[42/306] Compiling OrderedCollections OrderedSet+ExpressibleByArrayLiteral.swift
[43/306] Compiling OrderedCollections OrderedSet+Hashable.swift
[44/306] Emitting module HeapModule
[45/306] Compiling HeapModule Heap+Descriptions.swift
[46/307] Compiling HashTreeCollections TreeSet+Hashable.swift
[47/307] Compiling HashTreeCollections TreeSet+Sendable.swift
[48/307] Compiling HashTreeCollections TreeSet+Sequence.swift
[49/307] Compiling HashTreeCollections TreeSet+SetAlgebra Initializers.swift
[50/307] Compiling HashTreeCollections TreeSet+SetAlgebra basics.swift
[51/307] Compiling HashTreeCollections TreeSet+SetAlgebra formIntersection.swift
[52/307] Compiling HashTreeCollections TreeSet+SetAlgebra formSymmetricDifference.swift
[53/307] Compiling HashTreeCollections TreeSet+SetAlgebra formUnion.swift
[54/307] Compiling HashTreeCollections TreeSet+SetAlgebra intersection.swift
[55/307] Compiling HashTreeCollections TreeSet+SetAlgebra isDisjoint.swift
[56/317] Compiling OrderedCollections _HashTable+Bucket.swift
[57/317] Compiling OrderedCollections _HashTable+BucketIterator.swift
[58/317] Compiling OrderedCollections OrderedSet+Partial SetAlgebra intersection.swift
[59/317] Compiling OrderedCollections OrderedSet+Partial SetAlgebra isDisjoint.swift
[60/317] Compiling OrderedCollections OrderedSet+Partial SetAlgebra isEqualSet.swift
[61/317] Compiling OrderedCollections OrderedSet+Partial SetAlgebra isStrictSubset.swift
[62/317] Compiling OrderedCollections OrderedSet+Partial SetAlgebra isStrictSuperset.swift
[63/317] Compiling OrderedCollections OrderedSet+Partial SetAlgebra isSubset.swift
[64/317] Compiling OrderedCollections OrderedSet+Partial SetAlgebra isSuperset.swift
[66/324] Compiling DequeModule _DequeSlot.swift
[67/324] Compiling DequeModule _UnsafeWrappedBuffer.swift
[68/324] Compiling OrderedCollections OrderedDictionary.swift
[69/324] Compiling OrderedCollections OrderedSet+Codable.swift
[70/324] Compiling OrderedCollections _HashTable+Constants.swift
[71/324] Compiling OrderedCollections _HashTable+CustomStringConvertible.swift
[72/324] Compiling OrderedCollections OrderedSet+Partial SetAlgebra subtract.swift
[73/324] Compiling OrderedCollections OrderedSet+Partial SetAlgebra subtracting.swift
[74/324] Compiling OrderedCollections OrderedSet+Partial SetAlgebra symmetricDifference.swift
[75/324] Compiling OrderedCollections OrderedSet+Partial SetAlgebra union.swift
[76/324] Compiling OrderedCollections OrderedSet+Partial SetAlgebra+Basics.swift
[77/324] Compiling OrderedCollections OrderedSet+RandomAccessCollection.swift
[78/324] Compiling OrderedCollections OrderedSet+ReserveCapacity.swift
[79/324] Emitting module BitCollections
[80/331] Compiling OrderedCollections OrderedDictionary+CustomReflectable.swift
[81/331] Compiling OrderedCollections OrderedDictionary+Deprecations.swift
[82/331] Compiling OrderedCollections OrderedDictionary+Descriptions.swift
[83/331] Compiling OrderedCollections OrderedDictionary+Elements.SubSequence.swift
[84/331] Compiling OrderedCollections OrderedDictionary+Elements.swift
[85/331] Compiling OrderedCollections OrderedDictionary+Equatable.swift
[86/331] Compiling OrderedCollections OrderedDictionary+ExpressibleByDictionaryLiteral.swift
[87/331] Compiling OrderedCollections OrderedDictionary+Hashable.swift
[88/331] Compiling OrderedCollections OrderedDictionary+Initializers.swift
[89/331] Compiling OrderedCollections OrderedDictionary+Invariants.swift
[90/331] Compiling OrderedCollections OrderedDictionary+Partial MutableCollection.swift
[91/331] Compiling OrderedCollections OrderedDictionary+Partial RangeReplaceableCollection.swift
[92/331] Compiling OrderedCollections OrderedDictionary+Sendable.swift
[93/331] Compiling OrderedCollections OrderedDictionary+Sequence.swift
[94/331] Compiling OrderedCollections OrderedDictionary+Codable.swift
[117/331] Compiling HashTreeCollections _UnsafePath.swift
[118/331] Compiling HashTreeCollections TreeDictionary+Codable.swift
[119/331] Compiling HashTreeCollections TreeDictionary+Collection.swift
[120/331] Compiling OrderedCollections OrderedSet+Invariants.swift
[121/331] Compiling OrderedCollections OrderedSet+Partial MutableCollection.swift
[122/331] Compiling OrderedCollections OrderedSet+Partial RangeReplaceableCollection.swift
[123/331] Compiling OrderedCollections OrderedSet+Partial SetAlgebra formIntersection.swift
[124/331] Compiling OrderedCollections OrderedSet+Partial SetAlgebra formSymmetricDifference.swift
[125/331] Compiling OrderedCollections OrderedSet+Partial SetAlgebra formUnion.swift
[126/331] Compiling BitCollections Range+Utilities.swift
[127/331] Compiling BitCollections Slice+Utilities.swift
[128/331] Compiling BitCollections UInt+Tricks.swift
[129/331] Compiling BitCollections _Word.swift
[130/331] Compiling OrderedCollections OrderedSet.swift
[131/331] Compiling OrderedCollections _UnsafeBitset.swift
[132/331] Compiling HashTreeCollections TreeSet+Equatable.swift
[133/331] Compiling HashTreeCollections TreeSet+ExpressibleByArrayLiteral.swift
[134/331] Compiling HashTreeCollections TreeSet+Extras.swift
[135/331] Compiling HashTreeCollections TreeSet+Filter.swift
[150/331] Compiling HashTreeCollections TreeSet+SetAlgebra isEqualSet.swift
[151/331] Compiling HashTreeCollections TreeSet+SetAlgebra isStrictSubset.swift
[152/331] Compiling HashTreeCollections TreeSet+SetAlgebra isStrictSuperset.swift
[153/331] Compiling HashTreeCollections TreeSet+SetAlgebra isSubset.swift
[154/331] Compiling HashTreeCollections TreeSet+SetAlgebra isSuperset.swift
[155/331] Compiling HashTreeCollections TreeSet+SetAlgebra subtract.swift
[156/331] Compiling HashTreeCollections TreeSet+SetAlgebra subtracting.swift
[157/331] Compiling HashTreeCollections TreeSet+SetAlgebra symmetricDifference.swift
[158/331] Compiling HashTreeCollections TreeSet+SetAlgebra union.swift
[159/331] Compiling HashTreeCollections TreeSet.swift
[160/331] Emitting module DequeModule
[169/332] Compiling BitCollections BitSet.Index.swift
[170/332] Compiling BitCollections BitSet._UnsafeHandle.swift
[171/332] Compiling BitCollections BitSet.swift
[311/342] Emitting module OrderedCollections
[324/343] Emitting module _RopeModule
[325/343] Emitting module HashTreeCollections
[336/344] Compiling _RopeModule Rope+Join.swift
[337/344] Compiling _RopeModule Rope+MutatingForEach.swift
[338/344] Compiling _RopeModule Rope+Remove.swift
[339/344] Compiling _RopeModule Rope+RemoveSubrange.swift
[340/344] Compiling _RopeModule Rope+Split.swift
[341/344] Compiling _RopeModule Optional Utilities.swift
[342/344] Compiling _RopeModule String Utilities.swift
[343/344] Compiling _RopeModule String.Index+ABI.swift
[344/344] Compiling _RopeModule _CharacterRecognizer.swift
[346/347] Compiling Collections Collections.swift
[347/347] Emitting module Collections
[349/352] Compiling Tree TreeBuilder.swift
[350/352] Compiling Tree NodeIterator.swift
[351/352] Emitting module Tree
[352/352] Compiling Tree Node.swift
Build complete! (20.70s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-collections",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.1.4",
            "upper_bound" : "1.2.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-collections"
    }
  ],
  "manifest_display_name" : "Tree",
  "name" : "Tree",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "13.0"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "Tree",
      "targets" : [
        "Tree"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "TreeTests",
      "module_type" : "SwiftTarget",
      "name" : "TreeTests",
      "path" : "Tests/TreeTests",
      "sources" : [
        "NodeIteratorTests.swift",
        "NodeTests.swift",
        "Test.swift",
        "TreeBuilderTests.swift"
      ],
      "target_dependencies" : [
        "Tree"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Tree",
      "module_type" : "SwiftTarget",
      "name" : "Tree",
      "path" : "Sources/Tree",
      "product_dependencies" : [
        "Collections"
      ],
      "product_memberships" : [
        "Tree"
      ],
      "sources" : [
        "Node.swift",
        "NodeIterator.swift",
        "TreeBuilder.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
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.