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Build Information

Failed to build ReactiveSwift, reference master (a44317), with Swift 6.4 for Wasm on 22 Sep 2026 13:12:05 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344843-0":/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/ReactiveCocoa/ReactiveSwift.git
Reference: master
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/ReactiveCocoa/ReactiveSwift
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at a44317c Bump version to 7.2.1
Submodule path 'Carthage/Checkouts/Nimble': checked out 'efe11bbca024b57115260709b5c05e01131470d0'
Submodule path 'Carthage/Checkouts/Quick': checked out '6d01974d236f598633cac58280372c0c8cfea5bc'
Submodule path 'Carthage/Checkouts/Quick/Externals/Nimble': checked out 'c1f3dd66222d5e7a1a20afc237f7e7bc432c564f'
Submodule path 'Carthage/Checkouts/xcconfigs': checked out '4ced0ad5a971220917994a4edfa6abf9702e3818'
Submodule 'Carthage/Checkouts/Nimble' (https://github.com/Quick/Nimble.git) registered for path 'Carthage/Checkouts/Nimble'
Submodule 'Carthage/Checkouts/Quick' (https://github.com/Quick/Quick.git) registered for path 'Carthage/Checkouts/Quick'
Submodule 'Carthage/Checkouts/xcconfigs' (https://github.com/xcconfigs/xcconfigs.git) registered for path 'Carthage/Checkouts/xcconfigs'
Cloning into '/host/spi-builder-workspace/Carthage/Checkouts/Nimble'...
Cloning into '/host/spi-builder-workspace/Carthage/Checkouts/Quick'...
Cloning into '/host/spi-builder-workspace/Carthage/Checkouts/xcconfigs'...
Submodule 'Externals/Nimble' (https://github.com/Quick/Nimble.git) registered for path 'Carthage/Checkouts/Quick/Externals/Nimble'
Cloning into '/host/spi-builder-workspace/Carthage/Checkouts/Quick/Externals/Nimble'...
Cloned https://github.com/ReactiveCocoa/ReactiveSwift.git
Revision (git rev-parse @):
a44317ce38b5bcce173b03f5d36cfdc939e1768b
SUCCESS checkout https://github.com/ReactiveCocoa/ReactiveSwift.git at master
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/ReactiveCocoa/ReactiveSwift.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-0":/host -w "$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
Fetching https://github.com/Quick/Quick.git
Fetching https://github.com/Quick/Nimble.git
[1/14925] Fetching quick
[12240/34911] Fetching quick, nimble
Fetched https://github.com/Quick/Quick.git (1.13s)
Fetched https://github.com/Quick/Nimble.git (1.13s)
Computing version for https://github.com/Quick/Quick.git
Computed https://github.com/Quick/Quick.git at 7.6.2 (1.32s)
Fetching https://github.com/apple/swift-argument-parser.git
Fetching https://github.com/apple/swift-algorithms.git
[1/6145] Fetching swift-algorithms
[1784/25063] Fetching swift-algorithms, swift-argument-parser
Fetched https://github.com/apple/swift-algorithms.git (0.75s)
Fetched https://github.com/apple/swift-argument-parser.git (0.75s)
Computing version for https://github.com/apple/swift-algorithms.git
Computed https://github.com/apple/swift-algorithms.git at 1.2.1 (0.94s)
Fetching https://github.com/apple/swift-numerics.git
[1/6640] Fetching swift-numerics
Fetched https://github.com/apple/swift-numerics.git (1.13s)
Computing version for https://github.com/apple/swift-numerics.git
Computed https://github.com/apple/swift-numerics.git at 1.1.1 (1.28s)
Computing version for https://github.com/apple/swift-argument-parser.git
Computed https://github.com/apple/swift-argument-parser.git at 1.8.2 (0.18s)
Computing version for https://github.com/Quick/Nimble.git
Computed https://github.com/Quick/Nimble.git at 13.8.0 (0.16s)
Fetching https://github.com/mattgallagher/CwlPreconditionTesting.git
[1/1257] Fetching cwlpreconditiontesting
Fetched https://github.com/mattgallagher/CwlPreconditionTesting.git (0.49s)
Computing version for https://github.com/mattgallagher/CwlPreconditionTesting.git
Computed https://github.com/mattgallagher/CwlPreconditionTesting.git at 2.2.2 (0.68s)
Fetching https://github.com/mattgallagher/CwlCatchException.git
[1/460] Fetching cwlcatchexception
Fetched https://github.com/mattgallagher/CwlCatchException.git (0.46s)
Computing version for https://github.com/mattgallagher/CwlCatchException.git
Computed https://github.com/mattgallagher/CwlCatchException.git at 2.2.1 (0.65s)
Creating working copy for https://github.com/apple/swift-algorithms.git
Working copy of https://github.com/apple/swift-algorithms.git resolved at 1.2.1
Creating working copy for https://github.com/mattgallagher/CwlCatchException.git
Working copy of https://github.com/mattgallagher/CwlCatchException.git resolved at 2.2.1
Creating working copy for https://github.com/apple/swift-numerics.git
Working copy of https://github.com/apple/swift-numerics.git resolved at 1.1.1
Creating working copy for https://github.com/mattgallagher/CwlPreconditionTesting.git
Working copy of https://github.com/mattgallagher/CwlPreconditionTesting.git resolved at 2.2.2
Creating working copy for https://github.com/Quick/Quick.git
Working copy of https://github.com/Quick/Quick.git resolved at 7.6.2
Creating working copy for https://github.com/Quick/Nimble.git
Working copy of https://github.com/Quick/Nimble.git resolved at 13.8.0
Creating working copy for https://github.com/apple/swift-argument-parser.git
Working copy of https://github.com/apple/swift-argument-parser.git resolved at 1.8.2
Building for debugging...
[Pre-planning 1 / 95]
[14 / 27] ReactiveSwift
error: SwiftCompile normal wasm32 failed with a nonzero exit code. Command line:     cd /host

/host/spi-builder-workspace/Sources/Action.swift:1:8: error: no such module 'Dispatch'
  1 | import Dispatch
    |        `- error: no such module 'Dispatch'
  2 | import Foundation
  3 |
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/Sources/Action.swift /host/spi-builder-workspace/Sources/Atomic.swift /host/spi-builder-workspace/Sources/Bag.swift /host/spi-builder-workspace/Sources/Deprecations+Removals.swift /host/spi-builder-workspace/Sources/Disposable.swift /host/spi-builder-workspace/Sources/Event.swift /host/spi-builder-workspace/Sources/EventLogger.swift /host/spi-builder-workspace/Sources/Flatten.swift /host/spi-builder-workspace/Sources/FoundationExtensions.swift /host/spi-builder-workspace/Sources/Lifetime.swift /host/spi-builder-workspace/Sources/Observers/AttemptMap.swift /host/spi-builder-workspace/Sources/Observers/Collect.swift /host/spi-builder-workspace/Sources/Observers/CollectEvery.swift /host/spi-builder-workspace/Sources/Observers/CombinePrevious.swift /host/spi-builder-workspace/Sources/Observers/CompactMap.swift /host/spi-builder-workspace/Sources/Observers/Debounce.swift /host/spi-builder-workspace/Sources/Observers/Delay.swift /host/spi-builder-workspace/Sources/Observers/Dematerialize.swift /host/spi-builder-workspace/Sources/Observers/DematerializeResults.swift /host/spi-builder-workspace/Sources/Observers/Filter.swift /host/spi-builder-workspace/Sources/Observers/LazyMap.swift /host/spi-builder-workspace/Sources/Observers/Map.swift /host/spi-builder-workspace/Sources/Observers/MapError.swift /host/spi-builder-workspace/Sources/Observers/Materialize.swift /host/spi-builder-workspace/Sources/Observers/MaterializeAsResult.swift /host/spi-builder-workspace/Sources/Observers/ObserveOn.swift /host/spi-builder-workspace/Sources/Observers/Observer.swift /host/spi-builder-workspace/Sources/Observers/Operators.swift /host/spi-builder-workspace/Sources/Observers/Reduce.swift /host/spi-builder-workspace/Sources/Observers/ScanMap.swift /host/spi-builder-workspace/Sources/Observers/SkipFirst.swift /host/spi-builder-workspace/Sources/Observers/SkipRepeats.swift /host/spi-builder-workspace/Sources/Observers/SkipWhile.swift /host/spi-builder-workspace/Sources/Observers/TakeFirst.swift /host/spi-builder-workspace/Sources/Observers/TakeLast.swift /host/spi-builder-workspace/Sources/Observers/TakeUntil.swift /host/spi-builder-workspace/Sources/Observers/TakeWhile.swift /host/spi-builder-workspace/Sources/Observers/Throttle.swift /host/spi-builder-workspace/Sources/Observers/UnaryAsyncOperator.swift /host/spi-builder-workspace/Sources/Observers/UniqueValues.swift /host/spi-builder-workspace/Sources/Optional.swift /host/spi-builder-workspace/Sources/Property.swift /host/spi-builder-workspace/Sources/Reactive.swift /host/spi-builder-workspace/Sources/ResultExtensions.swift /host/spi-builder-workspace/Sources/Scheduler.swift /host/spi-builder-workspace/Sources/Signal.Observer.swift /host/spi-builder-workspace/Sources/Signal.swift /host/spi-builder-workspace/Sources/SignalProducer.swift /host/spi-builder-workspace/Sources/UnidirectionalBinding.swift /host/spi-builder-workspace/Sources/UninhabitedTypeGuards.swift /host/spi-builder-workspace/Sources/ValidatingProperty.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/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name ReactiveSwift -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/Objects-normal/wasm32/ReactiveSwift_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/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/Objects-normal/wasm32/Modules/ReactiveSwift.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/Objects-normal/wasm32/Modules/ReactiveSwift.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/Objects-normal/wasm32/ReactiveSwift-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/Objects-normal/wasm32/ReactiveSwift-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/Objects-normal/wasm32/ReactiveSwift-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveSwift.build/Debug-webassembly-wasm32/ReactiveSwift-t.build/Objects-normal/wasm32/Modules/ReactiveSwift.swiftmodule
[28 / 37] ReactiveSwift
error: Build failed
BUILD FAILURE 6.4 wasm