SwiftXCore – Build Information – Swift Package Index

Build Information

Failed to build SwiftXCore, reference 1.0.0 (5b0ba4), with Swift 6.4 for macOS (SPM) on 24 Sep 2026 12:28:02 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64

Build Log

========================================
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/SwiftXCity/SwiftXCore.git
Reference: 1.0.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/SwiftXCity/SwiftXCore
 * tag               1.0.0      -> FETCH_HEAD
HEAD is now at 5b0ba45 docs: add MIT license and update repo url
Cloned https://github.com/SwiftXCity/SwiftXCore.git
Revision (git rev-parse @):
5b0ba4544e30120f773e2d72ea025f7ba0f5fb5d
SUCCESS checkout https://github.com/SwiftXCity/SwiftXCore.git at 1.0.0
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Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/SwiftXCity/SwiftXCore.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Pre-planning 1 / 95]
[Planning deferred tasks]
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[25 / 41] SwiftXCore
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[70 / 86] SwiftXCore
[71 / 86] SwiftXCore
/Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/http/http_parser.swift:51:17: [1;33mwarning: [1;39mvariable 'query' was never mutated; consider changing to 'let' constant[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/variable-never-mutated\VariableNeverMutated]8;;\]
 [0;36m49 |[0;0m             // Query params
 [0;36m50 |[0;0m             var path = pathFull
 [0;36m51 |[0;0m             var query: [String: String] = [:]
    [0;36m|[0;0m                 `- [1;33mwarning: [1;39mvariable 'query' was never mutated; consider changing to 'let' constant[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/variable-never-mutated\VariableNeverMutated]8;;\]
 [0;36m52 |[0;0m             if let qIdx = pathFull.firstIndex(of: "?") {
 [0;36m53 |[0;0m                 path = String(pathFull[..<qIdx])
[#VariableNeverMutated]: <https://docs.swift.org/compiler/documentation/diagnostics/variable-never-mutated>
error: SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/io/kqueue_backend.swift failed with a nonzero exit code. Command line:     cd /Users/admin/builder
    builtin-SwiftPerFileCompile kqueue_backend.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/io/kqueue_backend.swift:42:22: [1;31merror: [1;39mcannot call value of non-function type '[@Sendable (Int32, UnsafePointer<kevent>?, Int32, UnsafeMutablePointer<kevent>?, Int32, UnsafePointer<timespec>?) -> Int32]'[0;0m
[0;36m40 |[0;0m
[0;36m41 |[0;0m     public func poll(timeout: Int) -> [IOEvent] {
[0;36m42 |[0;0m         var events = [kevent](repeating: kevent(), count: 1024)
   [0;36m|[0;0m                      `- [1;31merror: [1;39mcannot call value of non-function type '[@Sendable (Int32, UnsafePointer<kevent>?, Int32, UnsafeMutablePointer<kevent>?, Int32, UnsafePointer<timespec>?) -> Int32]'[0;0m
[0;36m43 |[0;0m         var timeoutSpec = timespec(tv_sec: timeout / 1000, tv_nsec: (timeout % 1000) * 1_000_000)
[0;36m44 |[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/SwiftXCore/SwiftXCore.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/buffer/byte_buffer.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/http/encoder.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/http/http_parser.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/http/request.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/http/response.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/io/backend.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/io/epoll_backend.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/io/iocp_backend.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/io/kqueue_backend.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/io/select_backend.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/io/socket.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/io/wsapoll_backend.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/net/connection.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/net/listener.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/router/radix_router.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/runtime/queue.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/runtime/scheduler.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/runtime/task.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/runtime/worker.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/utils/config.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/utils/runtime_info.swift /Users/admin/builder/spi-builder-workspace/Sources/SwiftXCore/websocket/websocket_server.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftXCore.build/Debug/SwiftXCore-t.build/Objects-normal/arm64/kqueue_backend.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftXCore.build/Debug/SwiftXCore-t.build/Objects-normal/arm64/kqueue_backend.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftXCore.build/Debug/SwiftXCore-t.build/Objects-normal/arm64/kqueue_backend.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftXCore.build/Debug/SwiftXCore-t.build/Objects-normal/arm64/kqueue_backend.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftXCore.build/Debug/SwiftXCore-t.build/Objects-normal/arm64/select_backend.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftXCore.build/Debug/SwiftXCore-t.build/Objects-normal/arm64/select_backend.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftXCore.build/Debug/SwiftXCore-t.build/Objects-normal/arm64/select_backend.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftXCore.build/Debug/SwiftXCore-t.build/Objects-normal/arm64/select_backend.dia -target arm64-apple-macos12.0 -disable-cross-import-overlay-search -swift-module-cross-import Darwin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/Darwin.swiftcrossimport/xlocale.swiftoverlay -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/SwiftXCore.build/Debug/SwiftXCore-t.build/Objects-normal/arm64/SwiftXCore-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 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 -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/SwiftXCore.build/Debug/SwiftXCore-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftXCore.build/Debug/SwiftXCore-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftXCore.build/Debug/SwiftXCore-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name SwiftXCore -package-name spi_builder_workspace -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftXCore.build/Debug/SwiftXCore-t.build/Objects-normal/arm64/SwiftXCore_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/SwiftXCore.build/Debug/SwiftXCore-t.build/Objects-normal/arm64/kqueue_backend.o -o /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftXCore.build/Debug/SwiftXCore-t.build/Objects-normal/arm64/select_backend.o -debug-module-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftXCore.build/Debug/SwiftXCore-t.build/Objects-normal/arm64/SwiftXCore.swiftmodule -index-unit-output-path /SwiftXCore.build/Debug/SwiftXCore-t.build/Objects-normal/arm64/kqueue_backend.o -index-unit-output-path /SwiftXCore.build/Debug/SwiftXCore-t.build/Objects-normal/arm64/select_backend.o -index-store-path /Users/admin/builder/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 macosSpm