MicroExpress – Build Information

Build Information

Failed to build MicroExpress, reference 0.0.1 (06f66c), with Swift 6.4 for macOS (SPM) on 18 Sep 2026 10:38:28 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/helje5/MicroExpress.git
Reference: 0.0.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/helje5/MicroExpress
 * tag               0.0.1      -> FETCH_HEAD
HEAD is now at 06f66cf Language tag
Cloned https://github.com/helje5/MicroExpress.git
Revision (git rev-parse @):
06f66cf05a8cd8a1e0dca120d615afbc470bde10
SUCCESS checkout https://github.com/helje5/MicroExpress.git at 0.0.1
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/helje5/MicroExpress.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 / 155]
[Planning deferred tasks]
[34 / 61]
[46 / 73] HTTP
[47 / 83]
[56 / 83]
[63 / 92]
[71 / 92] MicroExpress
[73 / 92] MicroHelloServer-product
[75 / 92] MicroExpress-product
[79 / 92] MicroExpress
[80 / 92] MicroExpress
Fetching https://github.com/swift-server/http
[1/1874] Fetching http
Fetched https://github.com/swift-server/http (1.17s)
Computing version for https://github.com/swift-server/http
Computed https://github.com/swift-server/http at 0.1.0 (1.84s)
Creating working copy for https://github.com/swift-server/http
Working copy of https://github.com/swift-server/http resolved at 0.1.0
error: SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/.build/checkouts/http/Sources/HTTP/PoCSocket/PoCSocket.swift failed with a nonzero exit code. Command line:     cd /Users/admin/builder
    builtin-SwiftPerFileCompile PoCSocket.swift
/Users/admin/builder/spi-builder-workspace/.build/checkouts/http/Sources/HTTP/PoCSocket/PoCSocket.swift:230:51: [1;31merror: [1;39moverlapping accesses to 'addr_in', but modification requires exclusive access; consider copying to a local variable[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/exclusivity-violation\ExclusivityViolation]8;;\]
[0;36m228 |[0;0m         var addr_in = sockaddr_in()
[0;36m229 |[0;0m
[0;36m230 |[0;0m         listeningPort = try withUnsafePointer(to: [4;39m&addr_in[0;0m) { pointer in
    [0;36m|[0;0m                                                   `- [1;31merror: [1;39moverlapping accesses to 'addr_in', but modification requires exclusive access; consider copying to a local variable[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/exclusivity-violation\ExclusivityViolation]8;;\]
[0;36m231 |[0;0m             var len = socklen_t(MemoryLayout<sockaddr_in>.size)
[0;36m232 |[0;0m             if getsockname(socketfd, UnsafeMutablePointer(OpaquePointer(pointer)), &len) != 0 {
    [0;36m:[0;0m
[0;36m236 |[0;0m                 return Int32(ntohs(addr_in.sin_port))
[0;36m237 |[0;0m             #else
[0;36m238 |[0;0m                 return Int32(Int(OSHostByteOrder()) != OSLittleEndian ? [4;39maddr_in.sin_port[0;0m.littleEndian : addr_in.sin_port.bigEndian)
    [0;36m|[0;0m                                                                                 `- [1;39mnote: [1;39mconflicting access is here[0;0m
[0;36m239 |[0;0m             #endif
[0;36m240 |[0;0m         }
[#ExclusivityViolation]: <https://docs.swift.org/compiler/documentation/diagnostics/exclusivity-violation>
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/.build/checkouts/http/Sources/HTTP/HTTPCommon.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/http/Sources/HTTP/HTTPHeaders.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/http/Sources/HTTP/HTTPMethod.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/http/Sources/HTTP/HTTPRequest.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/http/Sources/HTTP/HTTPResponse.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/http/Sources/HTTP/HTTPServer.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/http/Sources/HTTP/HTTPStreamingParser.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/http/Sources/HTTP/HTTPVersion.swift -primary-file /Users/admin/builder/spi-builder-workspace/.build/checkouts/http/Sources/HTTP/PoCSocket/PoCSocket.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/http/Sources/HTTP/PoCSocket/PoCSocketConnectionListener.swift /Users/admin/builder/spi-builder-workspace/.build/checkouts/http/Sources/HTTP/PoCSocket/PoCSocketSimpleServer.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftServerHttp.build/Debug/HTTP-t.build/Objects-normal/arm64/PoCSocket.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftServerHttp.build/Debug/HTTP-t.build/Objects-normal/arm64/PoCSocket.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftServerHttp.build/Debug/HTTP-t.build/Objects-normal/arm64/PoCSocket.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftServerHttp.build/Debug/HTTP-t.build/Objects-normal/arm64/PoCSocket.dia -target arm64-apple-macos12.0 -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/PackageFrameworks -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/ModuleCache.noindex -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -suppress-warnings -swift-version 4 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -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 -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps/CHTTPParser.modulemap -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/checkouts/http/Sources/CHTTPParser/include -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/SwiftServerHttp.build/Debug/HTTP-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftServerHttp.build/Debug/HTTP-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftServerHttp.build/Debug/HTTP-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name HTTP -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftServerHttp.build/Debug/HTTP-t.build/Objects-normal/arm64/HTTP_const_extract_protocols.json -disable-clang-spi -target-sdk-version 27.0 -target-sdk-name macosx27.0 -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftServerHttp.build/Debug/HTTP-t.build/Objects-normal/arm64/PoCSocket.o -index-unit-output-path /SwiftServerHttp.build/Debug/HTTP-t.build/Objects-normal/arm64/PoCSocket.o -index-store-path /Users/admin/builder/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 macosSpm