SwiftSlash – Build Information – Swift Package Index

Build Information

Failed to build SwiftSlash, reference master (5dda27), with Swift 6.4 for Wasm on 18 Oct 2026 08:01:11 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344847-1":/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:wasm-6.4-latest swift build --swift-sdk swift-6.4.0-RELEASE_wasm 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.3
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/tannerdsilva/SwiftSlash.git
Reference: master
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/tannerdsilva/SwiftSlash
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 5dda27d feat: process-group placement as part of the launch contract (6.0.0)
Cloned https://github.com/tannerdsilva/SwiftSlash.git
Revision (git rev-parse @):
5dda27d1ebae38ce42e9440f3580cbc778c8af8b
SUCCESS checkout https://github.com/tannerdsilva/SwiftSlash.git at master
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/tannerdsilva/SwiftSlash.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344847-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.0-RELEASE_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:7a2e5502d3bb6640f9b2bbb1dadf9967024364ce9ed0ed0bd80cf1b699d193fd
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
Building for debugging...
[Computing dependencies]
[Pre-planning 1 / 447]
[Writing build description]
In file included from /host/spi-builder-workspace/Sources/__cswiftslash_eventtrigger/__cswiftslash_eventtrigger.c:16:
[1m/host/spi-builder-workspace/Sources/__cswiftslash_eventtrigger/__cswiftslash_eventtrigger.h:16:10: [0m[0;1;31mfatal error: [0m[1m'sys/wait.h' file not found[0m
   16 | #include <sys/wait.h>[0m
      | [0;1;32m         ^~~~~~~~~~~~
[0m1 error generated.
error: CompileC /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftSlash.build/Debug-webassembly-wasm32/__cswiftslash_eventtrigger-t.build/Objects-normal/wasm32/__cswiftslash_eventtrigger.o /host/spi-builder-workspace/Sources/__cswiftslash_eventtrigger/__cswiftslash_eventtrigger.c normal wasm32 c com.apple.compilers.llvm.clang.1_0.compiler failed with a nonzero exit code. Command line:     cd /host

    Using response file: /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftSlash.build/Debug-webassembly-wasm32/__cswiftslash_eventtrigger-t.build/Objects-normal/wasm32/9f65232cb83f8421e3a495a5062eba382369c975104ee97bafc405ab795bfc5e-common-args.resp

    /usr/bin/clang -x c -target wasm32-unknown-wasip1 -fmessage-length\=0 -fdiagnostics-show-note-include-stack -fmacro-backtrace-limit\=0 -fcolor-diagnostics -Wno-trigraphs -Wno-missing-field-initializers -Wno-missing-prototypes -Wno-return-type -Wno-missing-braces -Wparentheses -Wswitch -Wno-unused-function -Wno-unused-label -Wno-unused-parameter -Wno-unused-variable -Wunused-value -Wno-empty-body -Wno-uninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-conversion -Wno-constant-conversion -Wno-int-conversion -Wno-bool-conversion -Wno-enum-conversion -Wno-float-conversion -Wno-non-literal-null-conversion -Wno-objc-literal-conversion -Wno-shorten-64-to-32 -Wpointer-sign -Wno-newline-eof -Wno-implicit-fallthrough -fstrict-aliasing -Wdeprecated-declarations -Wno-sign-conversion -Wno-infinite-recursion -Wno-comma -Wno-block-capture-autoreleasing -Wno-strict-prototypes -Wno-semicolon-before-method-body --sysroot /root/.swiftpm/swift-sdks/swift-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_wasm/wasm32-unknown-wasip1/WASI.sdk @/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftSlash.build/Debug-webassembly-wasm32/__cswiftslash_eventtrigger-t.build/Objects-normal/wasm32/9f65232cb83f8421e3a495a5062eba382369c975104ee97bafc405ab795bfc5e-common-args.resp -MMD -MT dependencies -MF /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftSlash.build/Debug-webassembly-wasm32/__cswiftslash_eventtrigger-t.build/Objects-normal/wasm32/__cswiftslash_eventtrigger.d --serialize-diagnostics /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftSlash.build/Debug-webassembly-wasm32/__cswiftslash_eventtrigger-t.build/Objects-normal/wasm32/__cswiftslash_eventtrigger.dia -c /host/spi-builder-workspace/Sources/__cswiftslash_eventtrigger/__cswiftslash_eventtrigger.c -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftSlash.build/Debug-webassembly-wasm32/__cswiftslash_eventtrigger-t.build/Objects-normal/wasm32/__cswiftslash_eventtrigger.o
In file included from /host/spi-builder-workspace/Sources/__cswiftslash_posix_helpers/__cswiftslash_posix_helpers.c:16:
In file included from /host/spi-builder-workspace/Sources/__cswiftslash_posix_helpers/__cswiftslash_posix_helpers.h:27:
[1m/root/.swiftpm/swift-sdks/swift-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_wasm/wasm32-unknown-wasip1/WASI.sdk/include/wasm32-wasip1/signal.h:2:2: [0m[0;1;31merror: [0m[1m"wasm lacks signal support; to enable minimal signal emulation, compile with -D_WASI_EMULATED_SIGNAL and link with -lwasi-emulated-signal"[0m
    2 | #error [0;32m"wasm lacks signal support; to enable minimal signal emulation, \[0m
      | [0;1;32m ^
[0m[1m/host/spi-builder-workspace/Sources/__cswiftslash_posix_helpers/__cswiftslash_posix_helpers.c:19:10: [0m[0;1;31mfatal error: [0m[1m'spawn.h' file not found[0m
   19 | #include <spawn.h>[0m
      | [0;1;32m         ^~~~~~~~~
[0m2 errors generated.
error: CompileC /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftSlash.build/Debug-webassembly-wasm32/__cswiftslash_posix_helpers-t.build/Objects-normal/wasm32/__cswiftslash_posix_helpers.o /host/spi-builder-workspace/Sources/__cswiftslash_posix_helpers/__cswiftslash_posix_helpers.c normal wasm32 c com.apple.compilers.llvm.clang.1_0.compiler failed with a nonzero exit code. Command line:     cd /host

    Using response file: /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftSlash.build/Debug-webassembly-wasm32/__cswiftslash_posix_helpers-t.build/Objects-normal/wasm32/9f65232cb83f8421e3a495a5062eba382369c975104ee97bafc405ab795bfc5e-common-args.resp

    /usr/bin/clang -x c -target wasm32-unknown-wasip1 -fmessage-length\=0 -fdiagnostics-show-note-include-stack -fmacro-backtrace-limit\=0 -fcolor-diagnostics -Wno-trigraphs -Wno-missing-field-initializers -Wno-missing-prototypes -Wno-return-type -Wno-missing-braces -Wparentheses -Wswitch -Wno-unused-function -Wno-unused-label -Wno-unused-parameter -Wno-unused-variable -Wunused-value -Wno-empty-body -Wno-uninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-conversion -Wno-constant-conversion -Wno-int-conversion -Wno-bool-conversion -Wno-enum-conversion -Wno-float-conversion -Wno-non-literal-null-conversion -Wno-objc-literal-conversion -Wno-shorten-64-to-32 -Wpointer-sign -Wno-newline-eof -Wno-implicit-fallthrough -fstrict-aliasing -Wdeprecated-declarations -Wno-sign-conversion -Wno-infinite-recursion -Wno-comma -Wno-block-capture-autoreleasing -Wno-strict-prototypes -Wno-semicolon-before-method-body --sysroot /root/.swiftpm/swift-sdks/swift-6.4.0-RELEASE_wasm.artifactbundle/swift-6.4.0-RELEASE_wasm/wasm32-unknown-wasip1/WASI.sdk @/host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftSlash.build/Debug-webassembly-wasm32/__cswiftslash_posix_helpers-t.build/Objects-normal/wasm32/9f65232cb83f8421e3a495a5062eba382369c975104ee97bafc405ab795bfc5e-common-args.resp -MMD -MT dependencies -MF /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftSlash.build/Debug-webassembly-wasm32/__cswiftslash_posix_helpers-t.build/Objects-normal/wasm32/__cswiftslash_posix_helpers.d --serialize-diagnostics /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftSlash.build/Debug-webassembly-wasm32/__cswiftslash_posix_helpers-t.build/Objects-normal/wasm32/__cswiftslash_posix_helpers.dia -c /host/spi-builder-workspace/Sources/__cswiftslash_posix_helpers/__cswiftslash_posix_helpers.c -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftSlash.build/Debug-webassembly-wasm32/__cswiftslash_posix_helpers-t.build/Objects-normal/wasm32/__cswiftslash_posix_helpers.o
In file included from /host/spi-builder-workspace/Sources/__cswiftslash_threads/__cswiftslash_threads.c:12:
[1m/host/spi-builder-workspace/Sources/__cswiftslash_threads/__cswiftslash_threads.h:68:1: [0m[0;1;35mwarning: [0m[1mpointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness][0m
   68 | __cswiftslash_threads_t_type __cswiftslash_threads_config_run([0m
      | [0;1;32m^
[0m[1m/host/spi-builder-workspace/Sources/__cswiftslash_threads/__cswiftslash_threads.h:68:1: [0m[0;1;36mnote: [0minsert '_Nullable' if the pointer may be null[0m
   68 | __cswiftslash_threads_t_type __cswiftslash_threads_config_run([0m
      | [0;1;32m^
[0m      | [0;32m                             _Nullable
[0m[1m/host/spi-builder-workspace/Sources/__cswiftslash_threads/__cswiftslash_threads.h:68:1: [0m[0;1;36mnote: [0minsert '_Nonnull' if the pointer should never be null[0m
   68 | __cswiftslash_threads_t_type __cswiftslash_threads_config_run([0m
      | [0;1;32m^
[0m      | [0;32m                             _Nonnull
[0m1 warning generated.
error: Build failed
BUILD FAILURE 6.4 wasm