Build Information
Failed to build swift-distributed-actors, reference main (92a419), with Swift 6.4 for Wasm on 24 Oct 2026 19:13:03 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344846-0":/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-6.4.0-RELEASE_wasm 2>&1Build Log
========================================
RunAll
========================================
Builder version: 5.1.3
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/apple/swift-distributed-actors.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/apple/swift-distributed-actors
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 92a419e Use upstream MetricsTestKit instead of a vendored TestMetrics copy (#1248)
Cloned https://github.com/apple/swift-distributed-actors.git
Revision (git rev-parse @):
92a419e58e48fa020fd2f4f344d623962b52e43f
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/apple/swift-distributed-actors.git at main
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.4
Building package at path: $PWD
https://github.com/apple/swift-distributed-actors.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344846-0":/host -w "$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-6.4.0-RELEASE_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:0ad19d16955074ecc72bbe910025b19c4e4614184c1a48afc82660d4c7620121
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
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[170 / 928] ClusterMembership
[253 / 965] Logging
error: SwiftCompile normal wasm32 failed with a nonzero exit code. Command line: cd /host
/host/spi-builder-workspace/Sources/DistributedActorsConcurrencyHelpers/lock.swift:42:49: [1;31merror: [1;39mcannot find type 'pthread_mutex_t' in scope[0;0m
[0;36m40 |[0;0m @available(*, noasync, message: "Locks are bad in async code; If you truly must, use DispatchSemaphore")
[0;36m41 |[0;0m public final class Lock {
[0;36m42 |[0;0m fileprivate let mutex: UnsafeMutablePointer<[4;39mpthread_mutex_t[0;0m> = UnsafeMutablePointer.allocate(capacity: 1)
[0;36m|[0;0m `- [1;31merror: [1;39mcannot find type 'pthread_mutex_t' in scope[0;0m
[0;36m43 |[0;0m
[0;36m44 |[0;0m /// Create a new lock.
/host/spi-builder-workspace/Sources/DistributedActorsConcurrencyHelpers/lock.swift:113:44: [1;31merror: [1;39mcannot find type 'pthread_cond_t' in scope[0;0m
[0;36m111 |[0;0m private var _value: T
[0;36m112 |[0;0m private let mutex: Lock
[0;36m113 |[0;0m private let cond: UnsafeMutablePointer<[4;39mpthread_cond_t[0;0m> = UnsafeMutablePointer.allocate(capacity: 1)
[0;36m|[0;0m `- [1;31merror: [1;39mcannot find type 'pthread_cond_t' in scope[0;0m
[0;36m114 |[0;0m
[0;36m115 |[0;0m /// Create the lock, and initialize the state variable to `value`.
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/Sources/DistributedActorsConcurrencyHelpers/lock.swift -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 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-upcoming-feature MemberImportVisibility -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/swift-distributed-actors.build/Debug-webassembly-wasm32/DistributedActorsConcurrencyHelpers-t.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-distributed-actors.build/Debug-webassembly-wasm32/DistributedActorsConcurrencyHelpers-t.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-distributed-actors.build/Debug-webassembly-wasm32/DistributedActorsConcurrencyHelpers-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name DistributedActorsConcurrencyHelpers -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-distributed-actors.build/Debug-webassembly-wasm32/DistributedActorsConcurrencyHelpers-t.build/Objects-normal/wasm32/DistributedActorsConcurrencyHelpers_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/swift-distributed-actors.build/Debug-webassembly-wasm32/DistributedActorsConcurrencyHelpers-t.build/Objects-normal/wasm32/Modules/DistributedActorsConcurrencyHelpers.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-distributed-actors.build/Debug-webassembly-wasm32/DistributedActorsConcurrencyHelpers-t.build/Objects-normal/wasm32/Modules/DistributedActorsConcurrencyHelpers.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-distributed-actors.build/Debug-webassembly-wasm32/DistributedActorsConcurrencyHelpers-t.build/Objects-normal/wasm32/DistributedActorsConcurrencyHelpers-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-distributed-actors.build/Debug-webassembly-wasm32/DistributedActorsConcurrencyHelpers-t.build/Objects-normal/wasm32/DistributedActorsConcurrencyHelpers-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-distributed-actors.build/Debug-webassembly-wasm32/DistributedActorsConcurrencyHelpers-t.build/Objects-normal/wasm32/DistributedActorsConcurrencyHelpers-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-distributed-actors.build/Debug-webassembly-wasm32/DistributedActorsConcurrencyHelpers-t.build/Objects-normal/wasm32/Modules/DistributedActorsConcurrencyHelpers.swiftmodule
error: Build failed
BUILD FAILURE 6.4 wasm