ReactiveConcurrency – Build Information

Build Information

Failed to build ReactiveConcurrency, reference main (2afd10), with Swift 6.4 for Wasm on 22 Oct 2026 04:44:16 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-6.4.0-RELEASE_wasm 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.3
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/luizmb/ReactiveConcurrency.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/luizmb/ReactiveConcurrency
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 2afd10d docs: bump install version to 2.1.0 (README + DocC + docs)
Cloned https://github.com/luizmb/ReactiveConcurrency.git
Revision (git rev-parse @):
2afd10d5b4e7d2700589d33047fcfaae66827212
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/luizmb/ReactiveConcurrency.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/luizmb/ReactiveConcurrency.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-1":/host -w "$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-6.4.0-RELEASE_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:7a2e5502d3bb6640f9b2bbb1dadf9967024364ce9ed0ed0bd80cf1b699d193fd
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
Fetching https://github.com/luizmb/Hourglass.git
Fetching https://github.com/swiftlang/swift-docc-plugin
Fetching https://github.com/luizmb/FP.git
[1/2345] Fetching swift-docc-plugin
[2/2768] Fetching swift-docc-plugin, hourglass
Fetched https://github.com/luizmb/Hourglass.git (0.38s)
[258/2345] Fetching swift-docc-plugin
Fetched https://github.com/swiftlang/swift-docc-plugin (0.45s)
[1/11175] Fetching fp
Fetched https://github.com/luizmb/FP.git (0.82s)
Computing version for https://github.com/luizmb/Hourglass.git
Computed https://github.com/luizmb/Hourglass.git at 1.0.1 (0.98s)
Computing version for https://github.com/luizmb/FP.git
Computed https://github.com/luizmb/FP.git at 3.0.0 (0.16s)
Fetching https://github.com/swiftlang/swift-syntax.git
[1/80971] Fetching swift-syntax
Fetched https://github.com/swiftlang/swift-syntax.git (3.87s)
Computing version for https://github.com/swiftlang/swift-syntax.git
Computed https://github.com/swiftlang/swift-syntax.git at 603.0.2 (4.85s)
Computing version for https://github.com/swiftlang/swift-docc-plugin
Computed https://github.com/swiftlang/swift-docc-plugin at 1.5.0 (0.18s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3845] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit (0.56s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (0.77s)
Creating working copy for https://github.com/luizmb/Hourglass.git
Working copy of https://github.com/luizmb/Hourglass.git resolved at 1.0.1
Creating working copy for https://github.com/swiftlang/swift-syntax.git
Working copy of https://github.com/swiftlang/swift-syntax.git resolved at 603.0.2
Creating working copy for https://github.com/luizmb/FP.git
Working copy of https://github.com/luizmb/FP.git resolved at 3.0.0
Creating working copy for https://github.com/swiftlang/swift-docc-plugin
Working copy of https://github.com/swiftlang/swift-docc-plugin resolved at 1.5.0
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
Downloading package prebuilt https://download.swift.org/prebuilts/swift-syntax/603.0.2/swift-6.4.0-RELEASE-ubuntu_noble_x86_64-MacroSupport.tar.gz
Downloaded https://download.swift.org/prebuilts/swift-syntax/603.0.2/swift-6.4.0-RELEASE-ubuntu_noble_x86_64-MacroSupport.tar.gz (0.16s)
Building for debugging...
[Computing dependencies]
[Pre-planning 1 / 331]
[Planning deferred tasks]
[53 / 108]
[63 / 119] Hourglass
[64 / 128] CoreFP
[65 / 128] Hourglass
[67 / 128] Hourglass
[73 / 128] CoreFP
[80 / 128] CoreFP
[81 / 128] CoreFP
[87 / 132] Hourglass
[90 / 150] CoreFP
[93 / 150] ReactiveConcurrency
[95 / 165] ReactiveConcurrency
error: SwiftCompile normal wasm32 /host/spi-builder-workspace/Sources/ReactiveConcurrency/Publishers/NotificationCenter.swift failed with a nonzero exit code. Command line:     cd /host
    builtin-SwiftPerFileCompile NotificationCenter.swift
/host/spi-builder-workspace/Sources/ReactiveConcurrency/Publishers/NotificationCenter.swift:29:39: [1;31merror: [1;39mtrailing closure passed to parameter of type 'DeferredStream<Result<Output, Never>>' that does not accept a closure[0;0m
[0;36m27 |[0;0m         _ transform: @escaping @Sendable (Notification) -> Output
[0;36m28 |[0;0m     ) -> ReactiveConcurrency.Publisher<Output, Never> {
[0;36m29 |[0;0m         ReactiveConcurrency.Publisher [4;39m{ continuation in[0;0m
   [0;36m|[0;0m                                       `- [1;31merror: [1;39mtrailing closure passed to parameter of type 'DeferredStream<Result<Output, Never>>' that does not accept a closure[0;0m
[0;36m30 |[0;0m             let observer = self.addObserver(forName: name, object: object, queue: nil) { continuation.yield(transform($0)) }
[0;36m31 |[0;0m             await continuation.suspendUntilCancelled()
/host/spi-builder-workspace/Sources/ReactiveConcurrency/Core/Publisher.swift:109:5: [1;39mnote: [1;39m'init(_:)' declared here[0;0m
[0;36m107 |[0;0m
[0;36m108 |[0;0m     // Low-level init used by operators — direct DeferredStream wrapping.
[0;36m109 |[0;0m     init(_ stream: DeferredStream<Result<Output, Failure>>) {
    [0;36m|[0;0m     `- [1;39mnote: [1;39m'init(_:)' declared here[0;0m
[0;36m110 |[0;0m         _stream = stream
[0;36m111 |[0;0m     }
Failed frontend command:
/usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/Sources/ReactiveConcurrency/Core/Cancellable.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Core/Diagnostics.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Core/Locked.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Core/Publisher+Bridges.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Core/Publisher+Sink.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Core/Publisher.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Core/StreamBox.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Core/Subscribers.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Core/TerminalGate.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Deferred/DeferredStream+Applicative.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Deferred/DeferredStream+Functor.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Deferred/DeferredStream+Monad.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Deferred/DeferredStream+Traversable.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Deferred/DeferredStream.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Deferred/DeferredTask+Applicative.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Deferred/DeferredTask+Functor.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Deferred/DeferredTask+Monad.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Deferred/DeferredTask+Race.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Deferred/DeferredTask+Traversable.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Deferred/DeferredTask.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Deferred/JoinVoid.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+Assign.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+Buffer.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+Combine.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+Debug.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+Error.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+FP.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+Filter.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+Filtering.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+FlatMap.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+Lifecycle.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+Map.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+MergeMany.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+Scheduling.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+Sequence.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+Share.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+Timing.swift -primary-file /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+Traversable.swift -primary-file /host/spi-builder-workspace/Sources/ReactiveConcurrency/Operators/Publisher+Try.swift -primary-file /host/spi-builder-workspace/Sources/ReactiveConcurrency/Publishers/Convenience.swift -primary-file /host/spi-builder-workspace/Sources/ReactiveConcurrency/Publishers/Future.swift -primary-file /host/spi-builder-workspace/Sources/ReactiveConcurrency/Publishers/NotificationCenter.swift -primary-file /host/spi-builder-workspace/Sources/ReactiveConcurrency/Publishers/Record.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Publishers/SequencePublisher.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Publishers/Timer.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Subjects/CurrentValueSubject.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Subjects/PassthroughSubject.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Subjects/Subject.swift /host/spi-builder-workspace/Sources/ReactiveConcurrency/Subjects/SubjectCore.swift -supplementary-output-file-map /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveConcurrency.build/Debug-webassembly-wasm32/ReactiveConcurrency-t.build/Objects-normal/wasm32/supplementaryOutputs-15 -target wasm32-unknown-wasip1 -disable-objc-interop -sdk /root/.swiftpm/swift-sdks/swift-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_wasm/wasm32-unknown-wasip1/WASI.sdk -sysroot /root/.swiftpm/swift-sdks/swift-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_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 6 -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-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_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-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_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/ReactiveConcurrency.build/Debug-webassembly-wasm32/ReactiveConcurrency-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveConcurrency.build/Debug-webassembly-wasm32/ReactiveConcurrency-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveConcurrency.build/Debug-webassembly-wasm32/ReactiveConcurrency-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name ReactiveConcurrency -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveConcurrency.build/Debug-webassembly-wasm32/ReactiveConcurrency-t.build/Objects-normal/wasm32/ReactiveConcurrency_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 -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveConcurrency.build/Debug-webassembly-wasm32/ReactiveConcurrency-t.build/Objects-normal/wasm32/Publisher+Traversable.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveConcurrency.build/Debug-webassembly-wasm32/ReactiveConcurrency-t.build/Objects-normal/wasm32/Publisher+Try.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveConcurrency.build/Debug-webassembly-wasm32/ReactiveConcurrency-t.build/Objects-normal/wasm32/Convenience.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveConcurrency.build/Debug-webassembly-wasm32/ReactiveConcurrency-t.build/Objects-normal/wasm32/Future.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveConcurrency.build/Debug-webassembly-wasm32/ReactiveConcurrency-t.build/Objects-normal/wasm32/NotificationCenter.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/ReactiveConcurrency.build/Debug-webassembly-wasm32/ReactiveConcurrency-t.build/Objects-normal/wasm32/Record.o -index-unit-output-path /ReactiveConcurrency.build/Debug-webassembly-wasm32/ReactiveConcurrency-t.build/Objects-normal/wasm32/Publisher+Traversable.o -index-unit-output-path /ReactiveConcurrency.build/Debug-webassembly-wasm32/ReactiveConcurrency-t.build/Objects-normal/wasm32/Publisher+Try.o -index-unit-output-path /ReactiveConcurrency.build/Debug-webassembly-wasm32/ReactiveConcurrency-t.build/Objects-normal/wasm32/Convenience.o -index-unit-output-path /ReactiveConcurrency.build/Debug-webassembly-wasm32/ReactiveConcurrency-t.build/Objects-normal/wasm32/Future.o -index-unit-output-path /ReactiveConcurrency.build/Debug-webassembly-wasm32/ReactiveConcurrency-t.build/Objects-normal/wasm32/NotificationCenter.o -index-unit-output-path /ReactiveConcurrency.build/Debug-webassembly-wasm32/ReactiveConcurrency-t.build/Objects-normal/wasm32/Record.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 wasm