Swift Package IndexBuild Information
Failed to build AlecrimAsyncKit, reference master (974e49), with Swift 6.4 for macOS (SPM) on 16 Sep 2026 16:50:49 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64Build Log
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RunAll
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Builder version: 5.1.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/Alecrim/AlecrimAsyncKit.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Alecrim/AlecrimAsyncKit
* branch master -> FETCH_HEAD
* [new branch] master -> origin/master
HEAD is now at 974e49c Merge branch 'release/5.0-beta.2'
Cloned https://github.com/Alecrim/AlecrimAsyncKit.git
Revision (git rev-parse @):
974e49ce5e6ca0543aba4532448e5799e2bba545
SUCCESS checkout https://github.com/Alecrim/AlecrimAsyncKit.git at master
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Build
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Selected platform: macosSpm
Swift version: 6.4
Building package at path: $PWD
https://github.com/Alecrim/AlecrimAsyncKit.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Planning deferred tasks]
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[61 / 70] AlecrimAsyncKit
error: SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/TaskAwaiter.swift failed with a nonzero exit code. Command line: cd /Users/admin/builder
builtin-SwiftPerFileCompile TaskAwaiter.swift
/Users/admin/builder/spi-builder-workspace/Sources/TaskAwaiter.swift:79:26: [1;31merror: [1;39mcannot pass function of type '@Sendable () async -> Void' to parameter expecting synchronous function type[0;0m
[0;36m77 |[0;0m
[0;36m78 |[0;0m fileprivate func enqueue() {
[0;36m79 |[0;0m self.queue.async {
[0;36m|[0;0m `- [1;31merror: [1;39mcannot pass function of type '@Sendable () async -> Void' to parameter expecting synchronous function type[0;0m
[0;36m80 |[0;0m defer {
[0;36m81 |[0;0m if let finallyClosure = self.finallyClosure {
[0;36m:[0;0m
[0;36m89 |[0;0m
[0;36m90 |[0;0m do {
[0;36m91 |[0;0m let value = try await(self.task)
[0;36m|[0;0m `- [1;39mnote: [1;39m'async' inferred from asynchronous operation used here[0;0m
[0;36m92 |[0;0m
[0;36m93 |[0;0m if let thenClosure = self.thenClosure {
/Users/admin/builder/spi-builder-workspace/Sources/TaskAwaiter.swift:95:37: [1;31merror: [1;39mcannot convert value of type 'Task<V, any Error>' to expected argument type 'V'[0;0m
[0;36m93 |[0;0m if let thenClosure = self.thenClosure {
[0;36m94 |[0;0m self.callbackQueue.async {
[0;36m95 |[0;0m thenClosure(value)
[0;36m|[0;0m `- [1;31merror: [1;39mcannot convert value of type 'Task<V, any Error>' to expected argument type 'V'[0;0m
[0;36m96 |[0;0m self.thenClosure = nil
[0;36m97 |[0;0m }
/Users/admin/builder/spi-builder-workspace/Sources/TaskAwaiter.swift:126:26: [1;31merror: [1;39mcannot pass function of type '@Sendable () async -> Void' to parameter expecting synchronous function type[0;0m
[0;36m124 |[0;0m
[0;36m125 |[0;0m fileprivate func enqueue() {
[0;36m126 |[0;0m self.queue.async {
[0;36m|[0;0m `- [1;31merror: [1;39mcannot pass function of type '@Sendable () async -> Void' to parameter expecting synchronous function type[0;0m
[0;36m127 |[0;0m let value = await(self.task)
[0;36m|[0;0m `- [1;39mnote: [1;39m'async' inferred from asynchronous operation used here[0;0m
[0;36m128 |[0;0m
[0;36m129 |[0;0m if let thenClosure = self.thenClosure {
/Users/admin/builder/spi-builder-workspace/Sources/TaskAwaiter.swift:131:33: [1;31merror: [1;39mcannot convert value of type 'Task<V, Never>' to expected argument type 'V'[0;0m
[0;36m129 |[0;0m if let thenClosure = self.thenClosure {
[0;36m130 |[0;0m self.callbackQueue.async {
[0;36m131 |[0;0m thenClosure(value)
[0;36m|[0;0m `- [1;31merror: [1;39mcannot convert value of type 'Task<V, Never>' to expected argument type 'V'[0;0m
[0;36m132 |[0;0m self.thenClosure = nil
[0;36m133 |[0;0m }
Failed frontend command:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/Sources/Async.swift /Users/admin/builder/spi-builder-workspace/Sources/Await.swift /Users/admin/builder/spi-builder-workspace/Sources/Cancellation.swift /Users/admin/builder/spi-builder-workspace/Sources/Error+Extensions.swift /Users/admin/builder/spi-builder-workspace/Sources/Task.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/TaskAwaiter.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/AlecrimAsyncKit.build/Debug/AlecrimAsyncKit-t.build/Objects-normal/arm64/TaskAwaiter.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/AlecrimAsyncKit.build/Debug/AlecrimAsyncKit-t.build/Objects-normal/arm64/TaskAwaiter.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/AlecrimAsyncKit.build/Debug/AlecrimAsyncKit-t.build/Objects-normal/arm64/TaskAwaiter.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/AlecrimAsyncKit.build/Debug/AlecrimAsyncKit-t.build/Objects-normal/arm64/TaskAwaiter.dia -target arm64-apple-macos12.0 -disable-cross-import-overlay-search -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#SwiftMacros -disable-implicit-swift-modules -Xcc -fno-implicit-modules -Xcc -fno-implicit-module-maps -explicit-swift-module-map-file /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/AlecrimAsyncKit.build/Debug/AlecrimAsyncKit-t.build/Objects-normal/arm64/AlecrimAsyncKit-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -I /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExplicitPrecompiledModules -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 -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.build/out/SDKStatCaches.noindex/macosx27.0-26A425-80c5bbf1d171475443272936d42f90a36a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/AlecrimAsyncKit.build/Debug/AlecrimAsyncKit-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/AlecrimAsyncKit.build/Debug/AlecrimAsyncKit-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/AlecrimAsyncKit.build/Debug/AlecrimAsyncKit-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name AlecrimAsyncKit -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/AlecrimAsyncKit.build/Debug/AlecrimAsyncKit-t.build/Objects-normal/arm64/AlecrimAsyncKit_const_extract_protocols.json -disable-clang-spi -clang-target arm64-apple-macos27.0 -target-sdk-version 27.0 -target-sdk-name macosx27.0 -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/AlecrimAsyncKit.build/Debug/AlecrimAsyncKit-t.build/Objects-normal/arm64/TaskAwaiter.o -debug-module-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/AlecrimAsyncKit.build/Debug/AlecrimAsyncKit-t.build/Objects-normal/arm64/AlecrimAsyncKit.swiftmodule -index-unit-output-path /AlecrimAsyncKit.build/Debug/AlecrimAsyncKit-t.build/Objects-normal/arm64/TaskAwaiter.o -index-store-path /Users/admin/builder/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 macosSpm