Build Information
Failed to build AsyncProcess, reference 0.0.5 (3a506b), with Swift 6.4 for Wasm on 21 Sep 2026 23:23:30 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-53886770-0":/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:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1Build Log
========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/gregcotten/AsyncProcess.git
Reference: 0.0.5
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/gregcotten/AsyncProcess
* tag 0.0.5 -> FETCH_HEAD
HEAD is now at 3a506bb don't explicitly unwrap pid for interrupt/terminate
Cloned https://github.com/gregcotten/AsyncProcess.git
Revision (git rev-parse @):
3a506bb36e4aa54eb3f1b13f15e636c68ee3eb19
SUCCESS checkout https://github.com/gregcotten/AsyncProcess.git at 0.0.5
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.4
Building package at path: $PWD
https://github.com/gregcotten/AsyncProcess.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886770-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:4328fdb43c680d205c1d6761b1e3267aa38277eefdda9ddfb17b6a0f1a77857a
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
Fetching https://github.com/apple/swift-atomics.git
Fetching https://github.com/apple/swift-log.git
Fetching https://github.com/apple/swift-async-algorithms.git
Fetching https://github.com/apple/swift-collections.git
Fetching https://github.com/apple/swift-system
[1/8132] Fetching swift-log
[408/14855] Fetching swift-log, swift-async-algorithms
[3319/16730] Fetching swift-log, swift-async-algorithms, swift-atomics
Fetched https://github.com/apple/swift-log.git (0.57s)
[1/6898] Fetching swift-system
Fetched https://github.com/apple/swift-async-algorithms.git (0.57s)
Fetching https://github.com/apple/swift-nio.git
Fetched https://github.com/apple/swift-atomics.git (0.58s)
[3106/34552] Fetching swift-system, swift-collections
Fetched https://github.com/apple/swift-system (1.19s)
Fetched https://github.com/apple/swift-collections.git (1.20s)
[1/86065] Fetching swift-nio
Fetched https://github.com/apple/swift-nio.git (3.08s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.1 (3.83s)
Computing version for https://github.com/apple/swift-async-algorithms.git
Computed https://github.com/apple/swift-async-algorithms.git at 1.1.5 (0.23s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.6.0 (0.29s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.15.1 (0.20s)
Computing version for https://github.com/apple/swift-system
Computed https://github.com/apple/swift-system at 1.8.1 (0.22s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.103.0 (0.34s)
Creating working copy for https://github.com/apple/swift-system
Working copy of https://github.com/apple/swift-system resolved at 1.8.1
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.6.0
Creating working copy for https://github.com/apple/swift-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.15.1
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 2.103.0
Creating working copy for https://github.com/apple/swift-async-algorithms.git
Working copy of https://github.com/apple/swift-async-algorithms.git resolved at 1.1.5
Creating working copy for https://github.com/apple/swift-atomics.git
Working copy of https://github.com/apple/swift-atomics.git resolved at 1.3.1
Building for debugging...
[Computing dependencies]
[Constructing description]
[Pre-planning 1 / 897]
[Planning deferred tasks]
[138 / 283] CSystem
[144 / 317] SystemPackage
[145 / 317] _NIOBase64
[161 / 317] Logging
[163 / 317] Logging
[164 / 317] SystemPackage
[175 / 317] _NIODataStructures
[183 / 318] _NIOBase64
[188 / 318] _NIOBase64
[195 / 319] _NIODataStructures
[198 / 319] NIOConcurrencyHelpers
[203 / 319] Logging
[206 / 320] NIOConcurrencyHelpers
[209 / 320] InternalCollectionsUtilities
[213 / 320] InternalCollectionsUtilities
In file included from /host/spi-builder-workspace/Sources/CProcessSpawnSync/spawner.c:16:
[1m/root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_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 ^
[0mIn file included from /host/spi-builder-workspace/Sources/CProcessSpawnSync/spawner.c:26:
In file included from /host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:15:
[1m/root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_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 ^
[0mIn file included from /host/spi-builder-workspace/Sources/CProcessSpawnSync/spawner.c:26:
[1m/host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:70:72: [0m[0;1;31merror: [0m[1munknown type name 'sigset_t'[0m
70 | [0;34mstatic[0m [0;34mint[0m block_everything_but_something_went_seriously_wrong_signals(sigset_t *old_mask) {[0m
| [0;1;32m ^
[0m[1m/host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:71:5: [0m[0;1;31merror: [0m[1muse of undeclared identifier 'sigset_t'[0m
71 | sigset_t mask;[0m
| [0;1;32m ^~~~~~~~
[0m[1m/host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:73:10: [0m[0;1;31merror: [0m[1mcall to undeclared function 'sigfillset'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration][0m
73 | r |= sigfillset(&mask);[0m
| [0;1;32m ^
[0m[1m/host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:73:22: [0m[0;1;31merror: [0m[1muse of undeclared identifier 'mask'[0m
73 | r |= sigfillset(&mask);[0m
| [0;1;32m ^~~~
[0m[1m/host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:74:10: [0m[0;1;31merror: [0m[1mcall to undeclared function 'sigdelset'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration][0m
74 | r |= sigdelset(&mask, SIGABRT);[0m
| [0;1;32m ^
[0m[1m/host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:74:21: [0m[0;1;31merror: [0m[1muse of undeclared identifier 'mask'[0m
74 | r |= sigdelset(&mask, SIGABRT);[0m
| [0;1;32m ^~~~
[0m[1m/host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:74:27: [0m[0;1;31merror: [0m[1muse of undeclared identifier 'SIGABRT'[0m
74 | r |= sigdelset(&mask, SIGABRT);[0m
| [0;1;32m ^~~~~~~
[0m[1m/host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:75:21: [0m[0;1;31merror: [0m[1muse of undeclared identifier 'mask'[0m
75 | r |= sigdelset(&mask, SIGBUS);[0m
| [0;1;32m ^~~~
[0m[1m/host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:75:27: [0m[0;1;31merror: [0m[1muse of undeclared identifier 'SIGBUS'[0m
75 | r |= sigdelset(&mask, SIGBUS);[0m
| [0;1;32m ^~~~~~
[0m[1m/host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:76:21: [0m[0;1;31merror: [0m[1muse of undeclared identifier 'mask'[0m
76 | r |= sigdelset(&mask, SIGFPE);[0m
| [0;1;32m ^~~~
[0m[1m/host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:76:27: [0m[0;1;31merror: [0m[1muse of undeclared identifier 'SIGFPE'[0m
76 | r |= sigdelset(&mask, SIGFPE);[0m
| [0;1;32m ^~~~~~
[0m[1m/host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:77:21: [0m[0;1;31merror: [0m[1muse of undeclared identifier 'mask'[0m
77 | r |= sigdelset(&mask, SIGILL);[0m
| [0;1;32m ^~~~
[0m[1m/host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:77:27: [0m[0;1;31merror: [0m[1muse of undeclared identifier 'SIGILL'[0m
77 | r |= sigdelset(&mask, SIGILL);[0m
| [0;1;32m ^~~~~~
[0m[1m/host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:78:21: [0m[0;1;31merror: [0m[1muse of undeclared identifier 'mask'[0m
78 | r |= sigdelset(&mask, SIGKILL);[0m
| [0;1;32m ^~~~
[0m[1m/host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:78:27: [0m[0;1;31merror: [0m[1muse of undeclared identifier 'SIGKILL'[0m
78 | r |= sigdelset(&mask, SIGKILL);[0m
| [0;1;32m ^~~~~~~
[0m[1m/host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:79:21: [0m[0;1;31merror: [0m[1muse of undeclared identifier 'mask'[0m
79 | r |= sigdelset(&mask, SIGSEGV);[0m
| [0;1;32m ^~~~
[0m[1m/host/spi-builder-workspace/Sources/CProcessSpawnSync/internal-helpers.h:79:27: [0m[0;1;31merror: [0m[1muse of undeclared identifier 'SIGSEGV'[0m
79 | r |= sigdelset(&mask, SIGSEGV);[0m
| [0;1;32m ^~~~~~~
[0m[0;1;31mfatal error: [0m[1mtoo many errors emitted, stopping now [-ferror-limit=][0m
20 errors generated.
error: CompileC /host/spi-builder-workspace/.build/out/Intermediates.noindex/AsyncProcess.build/Debug-webassembly-wasm32/CProcessSpawnSync-t.build/Objects-normal/wasm32/spawner.o /host/spi-builder-workspace/Sources/CProcessSpawnSync/spawner.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/AsyncProcess.build/Debug-webassembly-wasm32/CProcessSpawnSync-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.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk @/host/spi-builder-workspace/.build/out/Intermediates.noindex/AsyncProcess.build/Debug-webassembly-wasm32/CProcessSpawnSync-t.build/Objects-normal/wasm32/9f65232cb83f8421e3a495a5062eba382369c975104ee97bafc405ab795bfc5e-common-args.resp -MMD -MT dependencies -MF /host/spi-builder-workspace/.build/out/Intermediates.noindex/AsyncProcess.build/Debug-webassembly-wasm32/CProcessSpawnSync-t.build/Objects-normal/wasm32/spawner.d --serialize-diagnostics /host/spi-builder-workspace/.build/out/Intermediates.noindex/AsyncProcess.build/Debug-webassembly-wasm32/CProcessSpawnSync-t.build/Objects-normal/wasm32/spawner.dia -c /host/spi-builder-workspace/Sources/CProcessSpawnSync/spawner.c -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/AsyncProcess.build/Debug-webassembly-wasm32/CProcessSpawnSync-t.build/Objects-normal/wasm32/spawner.o
error: Build failed
BUILD FAILURE 6.4 wasm