Socket – Build Information – Swift Package Index

Build Information

Failed to build Socket, reference 0.3.3 (9945ad), with Swift 6.4 for Linux on 20 Sep 2026 17:15:06 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344844-0":/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/stackotter/Socket.git
Reference: 0.3.3
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/stackotter/Socket
 * tag               0.3.3      -> FETCH_HEAD
HEAD is now at 9945adf Fix pointer related build warnings
Cloned https://github.com/stackotter/Socket.git
Revision (git rev-parse @):
9945adfb7b2b089b1f9963db31544f604d260293
SUCCESS checkout https://github.com/stackotter/Socket.git at 0.3.3
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.4
Building package at path:  $PWD
https://github.com/stackotter/Socket.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344844-0":/host -w "$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
Fetching https://github.com/apple/swift-system
[1/6898] Fetching swift-system
Fetched https://github.com/apple/swift-system (0.65s)
Computing version for https://github.com/apple/swift-system
Computed https://github.com/apple/swift-system at 1.8.1 (0.89s)
Creating working copy for https://github.com/apple/swift-system
Working copy of https://github.com/apple/swift-system resolved at 1.8.1
Building for debugging...
[Pre-planning 1 / 156]
[Starting]
[42 / 57] SystemPackage
[43 / 57] SystemPackage
[52 / 67] Socket
[54 / 67] Socket
[56 / 67] Socket
error: SwiftCompile normal x86_64 /host/spi-builder-workspace/Sources/Socket/System/SocketFlags.swift failed with a nonzero exit code. Command line:     cd /host
    builtin-SwiftPerFileCompile SocketFlags.swift
/host/spi-builder-workspace/Sources/Socket/System/SocketFlags.swift:2:22: [1;33mwarning: [1;39msafely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'Socket'[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 [0;36m1 |[0;0m #if os(Linux)
 [0;36m2 |[0;0m @_implementationOnly import CSocket
   [0;36m|[0;0m                      `- [1;33mwarning: [1;39msafely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'Socket'[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 [0;36m3 |[0;0m
 [0;36m4 |[0;0m /// Flags when opening sockets.
/host/spi-builder-workspace/Sources/Socket/System/SocketFlags.swift:25:55: [1;31merror: [1;39mcannot find 'SOCK_NONBLOCK' in scope[0;0m
[0;36m23 |[0;0m     /// Set the `O_NONBLOCK` file status flag on the open file description referred to by the new file
[0;36m24 |[0;0m     /// descriptor.  Using this flag saves extra calls to `fcntl()` to achieve the same result.
[0;36m25 |[0;0m     static var nonBlocking: SocketFlags { SocketFlags([4;39mSOCK_NONBLOCK[0;0m) }
   [0;36m|[0;0m                                                       `- [1;31merror: [1;39mcannot find 'SOCK_NONBLOCK' in scope[0;0m
[0;36m26 |[0;0m
[0;36m27 |[0;0m     /// Set the close-on-exec (`FD_CLOEXEC`) flag on the new file descriptor.
/host/spi-builder-workspace/Sources/Socket/System/SocketFlags.swift:28:55: [1;31merror: [1;39mcannot find 'SOCK_CLOEXEC' in scope[0;0m
[0;36m26 |[0;0m
[0;36m27 |[0;0m     /// Set the close-on-exec (`FD_CLOEXEC`) flag on the new file descriptor.
[0;36m28 |[0;0m     static var closeOnExec: SocketFlags { SocketFlags([4;39mSOCK_CLOEXEC[0;0m) }
   [0;36m|[0;0m                                                       `- [1;31merror: [1;39mcannot find 'SOCK_CLOEXEC' in scope[0;0m
[0;36m29 |[0;0m }
[0;36m30 |[0;0m
[#ImplementationOnlyDeprecated]: <https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated>
Failed frontend command:
/usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/Sources/Socket/Socket.swift /host/spi-builder-workspace/Sources/Socket/SocketContinuation.swift /host/spi-builder-workspace/Sources/Socket/SocketManager.swift /host/spi-builder-workspace/Sources/Socket/SocketManager/AsyncSocketManager.swift /host/spi-builder-workspace/Sources/Socket/SocketManager/CFSocketManager.swift /host/spi-builder-workspace/Sources/Socket/System/CInternetAddress.swift /host/spi-builder-workspace/Sources/Socket/System/CInterop.swift /host/spi-builder-workspace/Sources/Socket/System/CSocketAddress.swift /host/spi-builder-workspace/Sources/Socket/System/Constants.swift /host/spi-builder-workspace/Sources/Socket/System/Errno.swift /host/spi-builder-workspace/Sources/Socket/System/FileChange.swift /host/spi-builder-workspace/Sources/Socket/System/FileEvent.swift /host/spi-builder-workspace/Sources/Socket/System/FileFlags.swift /host/spi-builder-workspace/Sources/Socket/System/InputOutput/IOControl.swift /host/spi-builder-workspace/Sources/Socket/System/InputOutput/IODirection.swift /host/spi-builder-workspace/Sources/Socket/System/InputOutput/IOOperations.swift /host/spi-builder-workspace/Sources/Socket/System/InputOutput/IOType.swift /host/spi-builder-workspace/Sources/Socket/System/InternetProtocol.swift /host/spi-builder-workspace/Sources/Socket/System/MessageFlags.swift /host/spi-builder-workspace/Sources/Socket/System/NetworkInterface.swift /host/spi-builder-workspace/Sources/Socket/System/NetworkOrder.swift /host/spi-builder-workspace/Sources/Socket/System/Poll.swift /host/spi-builder-workspace/Sources/Socket/System/SocketAddress.swift /host/spi-builder-workspace/Sources/Socket/System/SocketAddress/IPv4SocketAddress.swift /host/spi-builder-workspace/Sources/Socket/System/SocketAddress/IPv6SocketAddress.swift /host/spi-builder-workspace/Sources/Socket/System/SocketAddress/LinkLayerSocketAddress.swift /host/spi-builder-workspace/Sources/Socket/System/SocketAddress/UnixSocketAddress.swift /host/spi-builder-workspace/Sources/Socket/System/SocketAddressFamily.swift -primary-file /host/spi-builder-workspace/Sources/Socket/System/SocketDescriptor.swift -primary-file /host/spi-builder-workspace/Sources/Socket/System/SocketFlags.swift -primary-file /host/spi-builder-workspace/Sources/Socket/System/SocketHelpers.swift -primary-file /host/spi-builder-workspace/Sources/Socket/System/SocketOperations.swift -primary-file /host/spi-builder-workspace/Sources/Socket/System/SocketOption.swift /host/spi-builder-workspace/Sources/Socket/System/SocketOptionID.swift /host/spi-builder-workspace/Sources/Socket/System/SocketOptionLevel.swift /host/spi-builder-workspace/Sources/Socket/System/SocketProtocol.swift /host/spi-builder-workspace/Sources/Socket/System/SocketProtocol/IPv4Protocol.swift /host/spi-builder-workspace/Sources/Socket/System/SocketProtocol/IPv6Protocol.swift /host/spi-builder-workspace/Sources/Socket/System/SocketProtocol/LinkLayerProtocol.swift /host/spi-builder-workspace/Sources/Socket/System/SocketProtocol/UnixProtocol.swift /host/spi-builder-workspace/Sources/Socket/System/SocketType.swift /host/spi-builder-workspace/Sources/Socket/System/Syscalls.swift /host/spi-builder-workspace/Sources/Socket/System/Util.swift -supplementary-output-file-map /host/spi-builder-workspace/.build/out/Intermediates.noindex/Socket.build/Debug-linux-x86_64/Socket-t.build/Objects-normal/x86_64/supplementaryOutputs-14 -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 -fmodule-map-file\=/host/spi-builder-workspace/.build/checkouts/swift-system/Sources/CSystem/include/module.modulemap -Xcc -fmodule-map-file\=/host/spi-builder-workspace/Sources/CSocket/include/module.modulemap -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/checkouts/swift-system/Sources/CSystem/include -Xcc -I/host/spi-builder-workspace/Sources/CSocket/include -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-linux-x86_64/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Socket.build/Debug-linux-x86_64/Socket-t.build/DerivedSources-normal/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Socket.build/Debug-linux-x86_64/Socket-t.build/DerivedSources/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/Socket.build/Debug-linux-x86_64/Socket-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Socket -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/Socket.build/Debug-linux-x86_64/Socket-t.build/Objects-normal/x86_64/Socket_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/Socket.build/Debug-linux-x86_64/Socket-t.build/Objects-normal/x86_64/SocketDescriptor.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Socket.build/Debug-linux-x86_64/Socket-t.build/Objects-normal/x86_64/SocketFlags.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Socket.build/Debug-linux-x86_64/Socket-t.build/Objects-normal/x86_64/SocketHelpers.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Socket.build/Debug-linux-x86_64/Socket-t.build/Objects-normal/x86_64/SocketOperations.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/Socket.build/Debug-linux-x86_64/Socket-t.build/Objects-normal/x86_64/SocketOption.o -index-unit-output-path /Socket.build/Debug-linux-x86_64/Socket-t.build/Objects-normal/x86_64/SocketDescriptor.o -index-unit-output-path /Socket.build/Debug-linux-x86_64/Socket-t.build/Objects-normal/x86_64/SocketFlags.o -index-unit-output-path /Socket.build/Debug-linux-x86_64/Socket-t.build/Objects-normal/x86_64/SocketHelpers.o -index-unit-output-path /Socket.build/Debug-linux-x86_64/Socket-t.build/Objects-normal/x86_64/SocketOperations.o -index-unit-output-path /Socket.build/Debug-linux-x86_64/Socket-t.build/Objects-normal/x86_64/SocketOption.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
[57 / 67] Socket
error: Build failed
BUILD FAILURE 6.4 linux