Swift Package Index

Build Information

Failed to build ConcurrencyPlus, reference main (daf69e), with Swift 6.4 for Linux on 19 Sep 2026 06:26:51 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344845-0":/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:basic-6.4-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/ChimeHQ/ConcurrencyPlus.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/ChimeHQ/ConcurrencyPlus
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at daf69ed Prepare for archiving
Cloned https://github.com/ChimeHQ/ConcurrencyPlus.git
Revision (git rev-parse @):
daf69ed837fa04d4ba666f5a99378cf1815f0dab
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/ChimeHQ/ConcurrencyPlus.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.4
Building package at path:  $PWD
https://github.com/ChimeHQ/ConcurrencyPlus.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344845-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:basic-6.4-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:c77fcce225e223ac0fafed844619173fc6de8d62dd560eeb28db3182af6a282b
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:basic-6.4-latest
Building for debugging...
[Planning deferred tasks]
[27 / 35] ConcurrencyPlus
error: SwiftCompile normal x86_64 /host/spi-builder-workspace/Sources/ConcurrencyPlus/RelaxedDispatchQueue.swift failed with a nonzero exit code. Command line:     cd /host
    builtin-SwiftPerFileCompile RelaxedDispatchQueue.swift
/host/spi-builder-workspace/Sources/ConcurrencyPlus/RelaxedDispatchQueue.swift:27:18: error: value of type 'DispatchQueue' has no member 'asyncUnsafe'
25 | #if compiler(>=5.9)
26 | 		if #available(macOS 14.0, iOS 17.0, tvOS 17.0, watchOS 10.0, *) {
27 | 			internalQueue.asyncUnsafe(execute: block)
   |                  `- error: value of type 'DispatchQueue' has no member 'asyncUnsafe'
28 | 		} else {
29 | 			internalQueue.async(execute: block)
/host/spi-builder-workspace/Sources/ConcurrencyPlus/RelaxedDispatchQueue.swift:29:33: warning: passing non-Sendable parameter 'block' to function expecting a '@Sendable' closure
22 |
23 | 	/// Identical semantics to `DispatchQueue.asyncUnsafe()`.
24 | 	public func async(_ block: @escaping () -> Void) {
   |                      `- note: parameter 'block' is implicitly non-Sendable
25 | #if compiler(>=5.9)
26 | 		if #available(macOS 14.0, iOS 17.0, tvOS 17.0, watchOS 10.0, *) {
27 | 			internalQueue.asyncUnsafe(execute: block)
28 | 		} else {
29 | 			internalQueue.async(execute: block)
   |                                 `- warning: passing non-Sendable parameter 'block' to function expecting a '@Sendable' closure
30 | 		}
31 | #else
Failed frontend command:
/usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/Sources/ConcurrencyPlus/Continuation+Resuming.swift /host/spi-builder-workspace/Sources/ConcurrencyPlus/MainActor+Unsafe.swift /host/spi-builder-workspace/Sources/ConcurrencyPlus/NSXPCConnection+Continuation.swift -primary-file /host/spi-builder-workspace/Sources/ConcurrencyPlus/RelaxedDispatchQueue.swift /host/spi-builder-workspace/Sources/ConcurrencyPlus/SendableContainers.swift /host/spi-builder-workspace/Sources/ConcurrencyPlus/Task+Relay.swift /host/spi-builder-workspace/Sources/ConcurrencyPlus/TaskQueue.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ConcurrencyPlus.build/Debug-linux-x86_64/ConcurrencyPlus-t.build/Objects-normal/x86_64/RelaxedDispatchQueue.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ConcurrencyPlus.build/Debug-linux-x86_64/ConcurrencyPlus-t.build/Objects-normal/x86_64/RelaxedDispatchQueue.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ConcurrencyPlus.build/Debug-linux-x86_64/ConcurrencyPlus-t.build/Objects-normal/x86_64/RelaxedDispatchQueue.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/ConcurrencyPlus.build/Debug-linux-x86_64/ConcurrencyPlus-t.build/Objects-normal/x86_64/RelaxedDispatchQueue.dia -target x86_64-unknown-linux-gnu -disable-objc-interop -I /host/spi-builder-workspace/.build/out/Products/Debug-linux-x86_64 -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 -enable-anonymous-context-mangled-names -file-compilation-dir /host -Xcc -fno-omit-frame-pointer -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-linux-x86_64/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/ConcurrencyPlus.build/Debug-linux-x86_64/ConcurrencyPlus-t.build/DerivedSources-normal/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/ConcurrencyPlus.build/Debug-linux-x86_64/ConcurrencyPlus-t.build/DerivedSources/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/ConcurrencyPlus.build/Debug-linux-x86_64/ConcurrencyPlus-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name ConcurrencyPlus -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/ConcurrencyPlus.build/Debug-linux-x86_64/ConcurrencyPlus-t.build/Objects-normal/x86_64/ConcurrencyPlus_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/ConcurrencyPlus.build/Debug-linux-x86_64/ConcurrencyPlus-t.build/Objects-normal/x86_64/RelaxedDispatchQueue.o -index-unit-output-path /ConcurrencyPlus.build/Debug-linux-x86_64/ConcurrencyPlus-t.build/Objects-normal/x86_64/RelaxedDispatchQueue.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 linux