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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

Failed to build Entwine, reference v0.9.1 (cd90cf), with Swift 6.1 for Linux on 25 Apr 2025 20:26:01 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/tcldr/Entwine.git
Reference: v0.9.1
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/tcldr/Entwine
 * tag               v0.9.1     -> FETCH_HEAD
HEAD is now at cd90cfb fix TestScheduler repeating actions
Cloned https://github.com/tcldr/Entwine.git
Revision (git rev-parse @):
cd90cfb2510c35ba082d9c7a8910bdacc6fa840f
SUCCESS checkout https://github.com/tcldr/Entwine.git at v0.9.1
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/tcldr/Entwine.git
https://github.com/tcldr/Entwine.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Entwine",
  "name" : "Entwine",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "Entwine",
      "targets" : [
        "Entwine"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "EntwineTest",
      "targets" : [
        "EntwineTest"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "EntwineTests",
      "module_type" : "SwiftTarget",
      "name" : "EntwineTests",
      "path" : "Tests/EntwineTests",
      "sources" : [
        "DematerializeTests.swift",
        "FactoryTests.swift",
        "MaterializeTests.swift",
        "ReferenceCountedTests.swift",
        "ReplaySubjectTests.swift",
        "ShareReplayTests.swift",
        "TrampolineSchedulerTests.swift",
        "WithLatestFromTests.swift"
      ],
      "target_dependencies" : [
        "Entwine",
        "EntwineTest"
      ],
      "type" : "test"
    },
    {
      "c99name" : "EntwineTestTests",
      "module_type" : "SwiftTarget",
      "name" : "EntwineTestTests",
      "path" : "Tests/EntwineTestTests",
      "sources" : [
        "TestSchedulerTests.swift",
        "TestablePublisherTests.swift",
        "TestableSubscriberTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "EntwineTest"
      ],
      "type" : "test"
    },
    {
      "c99name" : "EntwineTest",
      "module_type" : "SwiftTarget",
      "name" : "EntwineTest",
      "path" : "Sources/EntwineTest",
      "product_memberships" : [
        "EntwineTest"
      ],
      "sources" : [
        "Common/DataStructures/LinkedListQueue.swift",
        "Common/DataStructures/LinkedListStack.swift",
        "Common/DataStructures/PriorityQueue.swift",
        "Common/Utilities/SinkQueue.swift",
        "Deprecations.swift",
        "Signal+CustomDebugStringConvertible.swift",
        "TestEvent.swift",
        "TestScheduler/TestScheduler.swift",
        "TestScheduler/VirtualTime.swift",
        "TestScheduler/VirtualTimeInterval.swift",
        "TestSequence.swift",
        "TestablePublisher/TestablePublisher.swift",
        "TestableSubscriber/DemandLedger.swift",
        "TestableSubscriber/TestableSubscriber.swift"
      ],
      "target_dependencies" : [
        "Entwine"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Entwine",
      "module_type" : "SwiftTarget",
      "name" : "Entwine",
      "path" : "Sources/Entwine",
      "product_memberships" : [
        "Entwine",
        "EntwineTest"
      ],
      "sources" : [
        "Common/DataStructures/LinkedListQueue.swift",
        "Common/DataStructures/LinkedListStack.swift",
        "Common/DataStructures/PriorityQueue.swift",
        "Common/Utilities/SinkQueue.swift",
        "Deprecated/CancellableBag.swift",
        "Deprecated/Deprecations.swift",
        "Operators/Dematerialize.swift",
        "Operators/Materialize.swift",
        "Operators/ReferenceCounted.swift",
        "Operators/ReplaySubject.swift",
        "Operators/ShareReplay.swift",
        "Operators/Signpost.swift",
        "Operators/WithLatestFrom.swift",
        "Publishers/Factory.swift",
        "Schedulers/TrampolineScheduler.swift",
        "Signal.swift",
        "Utilities/DeallocToken.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/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
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/19] Emitting module Entwine
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[5/21] Compiling Entwine Signal.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[6/21] Compiling Entwine DeallocToken.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[7/21] Compiling Entwine Deprecations.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[8/21] Compiling Entwine Dematerialize.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[9/21] Compiling Entwine LinkedListQueue.swift
/host/spi-builder-workspace/Sources/Entwine/Common/DataStructures/LinkedListQueue.swift:36:12: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 34 |     private var regular = Subnode.empty
 35 |     private var inverse = Subnode.empty
 36 |     private (set) var count = 0
    |            `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 37 |
 38 |     /// O(n) where n is the length of the sequence
/host/spi-builder-workspace/Sources/Entwine/Common/DataStructures/LinkedListStack.swift:32:12: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 30 |     typealias Node = LinkedList<Element>
 31 |
 32 |     private (set) var node = Node.empty
    |            `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 33 |
 34 |     init<C: Collection>(_ elements: C) where C.Element == Element {
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[10/21] Compiling Entwine LinkedListStack.swift
/host/spi-builder-workspace/Sources/Entwine/Common/DataStructures/LinkedListQueue.swift:36:12: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 34 |     private var regular = Subnode.empty
 35 |     private var inverse = Subnode.empty
 36 |     private (set) var count = 0
    |            `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 37 |
 38 |     /// O(n) where n is the length of the sequence
/host/spi-builder-workspace/Sources/Entwine/Common/DataStructures/LinkedListStack.swift:32:12: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 30 |     typealias Node = LinkedList<Element>
 31 |
 32 |     private (set) var node = Node.empty
    |            `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 33 |
 34 |     init<C: Collection>(_ elements: C) where C.Element == Element {
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[11/21] Compiling Entwine PriorityQueue.swift
/host/spi-builder-workspace/Sources/Entwine/Common/DataStructures/LinkedListQueue.swift:36:12: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 34 |     private var regular = Subnode.empty
 35 |     private var inverse = Subnode.empty
 36 |     private (set) var count = 0
    |            `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 37 |
 38 |     /// O(n) where n is the length of the sequence
/host/spi-builder-workspace/Sources/Entwine/Common/DataStructures/LinkedListStack.swift:32:12: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 30 |     typealias Node = LinkedList<Element>
 31 |
 32 |     private (set) var node = Node.empty
    |            `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 33 |
 34 |     init<C: Collection>(_ elements: C) where C.Element == Element {
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[12/21] Compiling Entwine SinkQueue.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[13/21] Compiling Entwine CancellableBag.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[14/21] Compiling Entwine ReplaySubject.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[15/21] Compiling Entwine ShareReplay.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[16/21] Compiling Entwine Materialize.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[17/21] Compiling Entwine ReferenceCounted.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[18/21] Compiling Entwine Signpost.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[19/21] Compiling Entwine WithLatestFrom.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[20/21] Compiling Entwine Factory.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[21/21] Compiling Entwine TrampolineScheduler.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 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
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
[2/17] Compiling Entwine Deprecations.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[3/17] Compiling Entwine Dematerialize.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[4/19] Compiling Entwine Factory.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[5/19] Compiling Entwine TrampolineScheduler.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
error: emit-module command failed with exit code 1 (use -v to see invocation)
[6/19] Emitting module Entwine
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[7/19] Compiling Entwine Signal.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[8/19] Compiling Entwine DeallocToken.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[9/19] Compiling Entwine ReplaySubject.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[10/19] Compiling Entwine ShareReplay.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[11/19] Compiling Entwine Signpost.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[12/19] Compiling Entwine WithLatestFrom.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[13/19] Compiling Entwine SinkQueue.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[14/19] Compiling Entwine CancellableBag.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[15/19] Compiling Entwine Materialize.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[16/19] Compiling Entwine ReferenceCounted.swift
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[17/19] Compiling Entwine LinkedListQueue.swift
/host/spi-builder-workspace/Sources/Entwine/Common/DataStructures/LinkedListQueue.swift:36:12: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 34 |     private var regular = Subnode.empty
 35 |     private var inverse = Subnode.empty
 36 |     private (set) var count = 0
    |            `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 37 |
 38 |     /// O(n) where n is the length of the sequence
/host/spi-builder-workspace/Sources/Entwine/Common/DataStructures/LinkedListStack.swift:32:12: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 30 |     typealias Node = LinkedList<Element>
 31 |
 32 |     private (set) var node = Node.empty
    |            `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 33 |
 34 |     init<C: Collection>(_ elements: C) where C.Element == Element {
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[18/19] Compiling Entwine LinkedListStack.swift
/host/spi-builder-workspace/Sources/Entwine/Common/DataStructures/LinkedListQueue.swift:36:12: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 34 |     private var regular = Subnode.empty
 35 |     private var inverse = Subnode.empty
 36 |     private (set) var count = 0
    |            `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 37 |
 38 |     /// O(n) where n is the length of the sequence
/host/spi-builder-workspace/Sources/Entwine/Common/DataStructures/LinkedListStack.swift:32:12: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 30 |     typealias Node = LinkedList<Element>
 31 |
 32 |     private (set) var node = Node.empty
    |            `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 33 |
 34 |     init<C: Collection>(_ elements: C) where C.Element == Element {
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
[19/19] Compiling Entwine PriorityQueue.swift
/host/spi-builder-workspace/Sources/Entwine/Common/DataStructures/LinkedListQueue.swift:36:12: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 34 |     private var regular = Subnode.empty
 35 |     private var inverse = Subnode.empty
 36 |     private (set) var count = 0
    |            `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 37 |
 38 |     /// O(n) where n is the length of the sequence
/host/spi-builder-workspace/Sources/Entwine/Common/DataStructures/LinkedListStack.swift:32:12: warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 30 |     typealias Node = LinkedList<Element>
 31 |
 32 |     private (set) var node = Node.empty
    |            `- warning: extraneous whitespace between attribute name and '('; this is an error in the Swift 6 language mode
 33 |
 34 |     init<C: Collection>(_ elements: C) where C.Element == Element {
/host/spi-builder-workspace/Sources/Entwine/Common/Utilities/SinkQueue.swift:25:8: error: no such module 'Combine'
 23 | //  THE SOFTWARE.
 24 |
 25 | import Combine
    |        `- error: no such module 'Combine'
 26 |
 27 | // MARK: - SinkQueue definition
BUILD FAILURE 6.1 linux