XCTest – Build Information – Swift Package Index

Build Information

Failed to build XCTest, reference main (80a3f9), with Swift 6.4 for Wasm on 29 Sep 2026 04:33:21 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344843-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swiftlang/swift-corelibs-xctest.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/swiftlang/swift-corelibs-xctest
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 80a3f95 Revert "Update minimum CMake version to 3.29 (#553)" (#554)
Cloned https://github.com/swiftlang/swift-corelibs-xctest.git
Revision (git rev-parse @):
80a3f9545d26c43d50ed1e0f377504ae00e759d2
SUCCESS checkout https://github.com/swiftlang/swift-corelibs-xctest.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/swiftlang/swift-corelibs-xctest.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:4328fdb43c680d205c1d6761b1e3267aa38277eefdda9ddfb17b6a0f1a77857a
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
Building for debugging...
[Planning deferred tasks]
[18 / 27] XCTest
error: SwiftCompile normal wasm32 failed with a nonzero exit code. Command line:     cd /host

/host/spi-builder-workspace/Sources/XCTest/Private/WaiterManager.swift:25:11: [1;31merror: [1;39mcannot find type 'DispatchWorkItem' in scope[0;0m
 [0;36m23 |[0;0m     func cancel()
 [0;36m24 |[0;0m }
 [0;36m25 |[0;0m extension [4;39mDispatchWorkItem[0;0m: ManageableWaiterWatchdog {}
    [0;36m|[0;0m           `- [1;31merror: [1;39mcannot find type 'DispatchWorkItem' in scope[0;0m
 [0;36m26 |[0;0m
 [0;36m27 |[0;0m /// This class manages the XCTWaiter instances which are currently waiting on a particular thread.
/host/spi-builder-workspace/Sources/XCTest/Private/WaiterManager.swift:54:25: [1;31merror: [1;39mcannot find 'DispatchQueue' in scope[0;0m
 [0;36m52 |[0;0m     private var managedWaiterStack = [ManagedWaiterDetails]()
 [0;36m53 |[0;0m     private weak var thread = Thread.current
 [0;36m54 |[0;0m     private let queue = [4;39mDispatchQueue[0;0m(label: "org.swift.XCTest.WaiterManager")
    [0;36m|[0;0m                         `- [1;31merror: [1;39mcannot find 'DispatchQueue' in scope[0;0m
 [0;36m55 |[0;0m
 [0;36m56 |[0;0m     // Use `WaiterManager.current` to access the thread-specific instance
/host/spi-builder-workspace/Sources/XCTest/Public/Asynchronous/XCTNSNotificationExpectation.swift:26:25: [1;31merror: [1;39mcannot find 'DispatchQueue' in scope[0;0m
 [0;36m24 |[0;0m     public typealias Handler = @Sendable (Notification) -> Bool
 [0;36m25 |[0;0m
 [0;36m26 |[0;0m     private let queue = [4;39mDispatchQueue[0;0m(label: "org.swift.XCTest.XCTNSNotificationExpectation")
    [0;36m|[0;0m                         `- [1;31merror: [1;39mcannot find 'DispatchQueue' in scope[0;0m
 [0;36m27 |[0;0m
 [0;36m28 |[0;0m     /// The name of the notification being waited on.
/host/spi-builder-workspace/Sources/XCTest/Public/Asynchronous/XCTNSNotificationExpectation.swift:16:12: [1;33mwarning: [1;39mclass 'XCTNSNotificationExpectation' must restate inherited '@unchecked Sendable' conformance[0;0m
 [0;36m14 |[0;0m
 [0;36m15 |[0;0m /// Expectation subclass for waiting on a condition defined by a Foundation Notification instance.
 [0;36m16 |[0;0m open class XCTNSNotificationExpectation: XCTestExpectation {
    [0;36m|[0;0m            `- [1;33mwarning: [1;39mclass 'XCTNSNotificationExpectation' must restate inherited '@unchecked Sendable' conformance[0;0m
 [0;36m17 |[0;0m
 [0;36m18 |[0;0m     /// A closure to be invoked when a notification specified by the expectation is observed.
/host/spi-builder-workspace/Sources/XCTest/Public/Asynchronous/XCTNSPredicateExpectation.swift:25:25: [1;31merror: [1;39mcannot find 'DispatchQueue' in scope[0;0m
 [0;36m23 |[0;0m     public typealias Handler = @Sendable () -> Bool
 [0;36m24 |[0;0m
 [0;36m25 |[0;0m     private let queue = [4;39mDispatchQueue[0;0m(label: "org.swift.XCTest.XCTNSPredicateExpectation")
    [0;36m|[0;0m                         `- [1;31merror: [1;39mcannot find 'DispatchQueue' in scope[0;0m
 [0;36m26 |[0;0m
 [0;36m27 |[0;0m     /// The predicate used by the expectation.
/host/spi-builder-workspace/Sources/XCTest/Public/Asynchronous/XCTNSPredicateExpectation.swift:49:35: [1;31merror: [1;39m'current' is unavailable: RunLoop is not available on WASI[0;0m
 [0;36m47 |[0;0m     }
 [0;36m48 |[0;0m
 [0;36m49 |[0;0m     private let runLoop = RunLoop.[4;39mcurrent[0;0m
    [0;36m|[0;0m                                   `- [1;31merror: [1;39m'current' is unavailable: RunLoop is not available on WASI[0;0m
 [0;36m50 |[0;0m     private var timer: Timer?
 [0;36m51 |[0;0m     private let evaluationInterval = 0.01
Foundation.RunLoop.current:3:18: [1;39mnote: [1;39m'current' has been explicitly marked unavailable here[0;0m
[0;36m1 |[0;0m class RunLoop {
[0;36m2 |[0;0m @available(*, unavailable, message: "RunLoop is not available on WASI")
[0;36m3 |[0;0m   open class var current: RunLoop { get }}
  [0;36m|[0;0m                  `- [1;39mnote: [1;39m'current' has been explicitly marked unavailable here[0;0m
[0;36m4 |[0;0m
/host/spi-builder-workspace/Sources/XCTest/Public/Asynchronous/XCTNSPredicateExpectation.swift:16:12: [1;33mwarning: [1;39mclass 'XCTNSPredicateExpectation' must restate inherited '@unchecked Sendable' conformance[0;0m
 [0;36m14 |[0;0m
 [0;36m15 |[0;0m /// Expectation subclass for waiting on a condition defined by an NSPredicate and an optional object.
 [0;36m16 |[0;0m open class XCTNSPredicateExpectation: XCTestExpectation {
    [0;36m|[0;0m            `- [1;33mwarning: [1;39mclass 'XCTNSPredicateExpectation' must restate inherited '@unchecked Sendable' conformance[0;0m
 [0;36m17 |[0;0m
 [0;36m18 |[0;0m     /// A closure to be invoked whenever evaluating the predicate against the object returns true.
/host/spi-builder-workspace/Sources/XCTest/Public/Asynchronous/XCTWaiter.swift:116:42: [1;31merror: [1;39mcannot find 'DispatchQueue' in scope[0;0m
[0;36m114 |[0;0m     }
[0;36m115 |[0;0m
[0;36m116 |[0;0m     internal static let subsystemQueue = [4;39mDispatchQueue[0;0m(label: "org.swift.XCTest.XCTWaiter")
    [0;36m|[0;0m                                          `- [1;31merror: [1;39mcannot find 'DispatchQueue' in scope[0;0m
[0;36m117 |[0;0m
[0;36m118 |[0;0m     private var state = State.ready
/host/spi-builder-workspace/Sources/XCTest/Public/Asynchronous/XCTWaiter.swift:125:33: [1;31merror: [1;39mcannot find 'DispatchQueue' in scope[0;0m
[0;36m123 |[0;0m
[0;36m124 |[0;0m     private weak var _delegate: XCTWaiterDelegate?
[0;36m125 |[0;0m     private let delegateQueue = [4;39mDispatchQueue[0;0m(label: "org.swift.XCTest.XCTWaiter.delegate")
    [0;36m|[0;0m                                 `- [1;31merror: [1;39mcannot find 'DispatchQueue' in scope[0;0m
[0;36m126 |[0;0m
[0;36m127 |[0;0m     /// The waiter delegate will be called with various events described in the `XCTWaiterDelegate` protocol documentation.
/host/spi-builder-workspace/Sources/XCTest/Public/XCTestCase.swift:70:32: [1;31merror: [1;39mcannot find type 'DispatchQueue' in scope[0;0m
 [0;36m68 |[0;0m     }
 [0;36m69 |[0;0m     #else
 [0;36m70 |[0;0m     typealias SubsystemQueue = [4;39mDispatchQueue[0;0m
    [0;36m|[0;0m                                `- [1;31merror: [1;39mcannot find type 'DispatchQueue' in scope[0;0m
 [0;36m71 |[0;0m     #endif
 [0;36m72 |[0;0m
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/Sources/XCTest/Private/ArgumentParser.swift /host/spi-builder-workspace/Sources/XCTest/Private/IgnoredErrors.swift /host/spi-builder-workspace/Sources/XCTest/Private/Interop/InteropHandler.swift /host/spi-builder-workspace/Sources/XCTest/Private/Interop/InteropRecord.swift /host/spi-builder-workspace/Sources/XCTest/Private/ObjectWrapper.swift /host/spi-builder-workspace/Sources/XCTest/Private/PerformanceMeter.swift /host/spi-builder-workspace/Sources/XCTest/Private/PrintObserver.swift /host/spi-builder-workspace/Sources/XCTest/Private/SourceLocation.swift /host/spi-builder-workspace/Sources/XCTest/Private/TestFiltering.swift /host/spi-builder-workspace/Sources/XCTest/Private/TestListing.swift /host/spi-builder-workspace/Sources/XCTest/Private/WaiterManager.swift /host/spi-builder-workspace/Sources/XCTest/Private/WallClockTimeMetric.swift /host/spi-builder-workspace/Sources/XCTest/Private/XCTestCase.TearDownBlocksState.swift /host/spi-builder-workspace/Sources/XCTest/Private/XCTestCaseSuite.swift /host/spi-builder-workspace/Sources/XCTest/Private/XCTestInternalObservation.swift /host/spi-builder-workspace/Sources/XCTest/Public/Asynchronous/XCTNSNotificationExpectation.swift /host/spi-builder-workspace/Sources/XCTest/Public/Asynchronous/XCTNSPredicateExpectation.swift /host/spi-builder-workspace/Sources/XCTest/Public/Asynchronous/XCTWaiter+Validation.swift /host/spi-builder-workspace/Sources/XCTest/Public/Asynchronous/XCTWaiter.swift /host/spi-builder-workspace/Sources/XCTest/Public/Asynchronous/XCTestCase+Asynchronous.swift /host/spi-builder-workspace/Sources/XCTest/Public/Asynchronous/XCTestExpectation.swift /host/spi-builder-workspace/Sources/XCTest/Public/XCAbstractTest.swift /host/spi-builder-workspace/Sources/XCTest/Public/XCTAssert.swift /host/spi-builder-workspace/Sources/XCTest/Public/XCTSkip.swift /host/spi-builder-workspace/Sources/XCTest/Public/XCTestCase+Performance.swift /host/spi-builder-workspace/Sources/XCTest/Public/XCTestCase.swift /host/spi-builder-workspace/Sources/XCTest/Public/XCTestCaseRun.swift /host/spi-builder-workspace/Sources/XCTest/Public/XCTestErrors.swift /host/spi-builder-workspace/Sources/XCTest/Public/XCTestMain.swift /host/spi-builder-workspace/Sources/XCTest/Public/XCTestObservation.swift /host/spi-builder-workspace/Sources/XCTest/Public/XCTestObservationCenter.swift /host/spi-builder-workspace/Sources/XCTest/Public/XCTestRun.swift /host/spi-builder-workspace/Sources/XCTest/Public/XCTestSuite.swift /host/spi-builder-workspace/Sources/XCTest/Public/XCTestSuiteRun.swift -target wasm32-unknown-wasip1 -disable-objc-interop -sdk /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk -sysroot /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk -I /host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32 -module-cache-path /host/spi-builder-workspace/.build/out/ModuleCache.noindex -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -external-plugin-path /usr/lib/swift/host/plugins/testing\#/usr/bin/swift-plugin-server -validate-clang-modules-once -clang-build-session-file /host/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /host -resource-dir /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static -use-static-resource-dir -enable-anonymous-context-mangled-names -file-compilation-dir /host -Xcc -resource-dir -Xcc /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static/clang -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/XCTest.build/Debug-webassembly-wasm32/XCTest-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/XCTest.build/Debug-webassembly-wasm32/XCTest-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/XCTest.build/Debug-webassembly-wasm32/XCTest-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name XCTest -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/XCTest.build/Debug-webassembly-wasm32/XCTest-t.build/Objects-normal/wasm32/XCTest_const_extract_protocols.json -in-process-plugin-server-path /usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /usr/lib/swift/host/plugins -plugin-path /usr/local/lib/swift/host/plugins -emit-module-doc-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/XCTest.build/Debug-webassembly-wasm32/XCTest-t.build/Objects-normal/wasm32/Modules/XCTest.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/XCTest.build/Debug-webassembly-wasm32/XCTest-t.build/Objects-normal/wasm32/Modules/XCTest.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/XCTest.build/Debug-webassembly-wasm32/XCTest-t.build/Objects-normal/wasm32/XCTest-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/XCTest.build/Debug-webassembly-wasm32/XCTest-t.build/Objects-normal/wasm32/XCTest-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/XCTest.build/Debug-webassembly-wasm32/XCTest-t.build/Objects-normal/wasm32/XCTest-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/XCTest.build/Debug-webassembly-wasm32/XCTest-t.build/Objects-normal/wasm32/Modules/XCTest.swiftmodule
[27 / 35] XCTest
error: Build failed
BUILD FAILURE 6.4 wasm