Swift Package Index

Build Information

Failed to build swift-web, reference main (6edadb), with Swift 6.4 for Wasm on 28 Sep 2026 00:38:01 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344847-2":/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

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/1amageek/swift-web.git
Reference: main
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/1amageek/swift-web
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 6edadb6 Support official Swift 6.4.0 toolchains
Cloned https://github.com/1amageek/swift-web.git
Revision (git rev-parse @):
6edadb6cfa92e3a4b26a1e669329be38f45212f4
SUCCESS checkout https://github.com/1amageek/swift-web.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/1amageek/swift-web.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344847-2":/host -w "$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
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Building for debugging...
[Computing dependencies]
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[Starting]
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[1147 / 2709] CXKCP
[1151 / 2720] CSwiftWebSignals
In file included from /host/spi-builder-workspace/Sources/CSwiftWebSignals/CSwiftWebSignals.c:4:
/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: error: "wasm lacks signal support; to enable minimal signal emulation, compile with -D_WASI_EMULATED_SIGNAL and link with -lwasi-emulated-signal"
    2 | #error "wasm lacks signal support; to enable minimal signal emulation, \
      |  ^
/host/spi-builder-workspace/Sources/CSwiftWebSignals/CSwiftWebSignals.c:7:17: error: unknown type name 'sig_atomic_t'
    7 | static volatile sig_atomic_t swift_web_termination_requested = 0;
      |                 ^
/host/spi-builder-workspace/Sources/CSwiftWebSignals/CSwiftWebSignals.c:15:22: error: variable has incomplete type 'struct sigaction'
   15 |     struct sigaction action;
      |                      ^
/host/spi-builder-workspace/Sources/CSwiftWebSignals/CSwiftWebSignals.c:15:12: note: forward declaration of 'struct sigaction'
   15 |     struct sigaction action;
      |            ^
/host/spi-builder-workspace/Sources/CSwiftWebSignals/CSwiftWebSignals.c:18:5: error: call to undeclared function 'sigemptyset'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
   18 |     sigemptyset(&action.sa_mask);
      |     ^
/host/spi-builder-workspace/Sources/CSwiftWebSignals/CSwiftWebSignals.c:21:9: error: call to undeclared function 'sigaction'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
   21 |     if (sigaction(SIGINT, &action, NULL) != 0) {
      |         ^
/host/spi-builder-workspace/Sources/CSwiftWebSignals/CSwiftWebSignals.c:21:19: error: use of undeclared identifier 'SIGINT'
   21 |     if (sigaction(SIGINT, &action, NULL) != 0) {
      |                   ^~~~~~
/host/spi-builder-workspace/Sources/CSwiftWebSignals/CSwiftWebSignals.c:24:19: error: use of undeclared identifier 'SIGTERM'
   24 |     if (sigaction(SIGTERM, &action, NULL) != 0) {
      |                   ^~~~~~~
7 errors generated.
error: CompileC /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-web.build/Debug-webassembly-wasm32/CSwiftWebSignals-t.build/Objects-normal/wasm32/CSwiftWebSignals.o /host/spi-builder-workspace/Sources/CSwiftWebSignals/CSwiftWebSignals.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/swift-web.build/Debug-webassembly-wasm32/CSwiftWebSignals-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/swift-web.build/Debug-webassembly-wasm32/CSwiftWebSignals-t.build/Objects-normal/wasm32/9f65232cb83f8421e3a495a5062eba382369c975104ee97bafc405ab795bfc5e-common-args.resp -MMD -MT dependencies -MF /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-web.build/Debug-webassembly-wasm32/CSwiftWebSignals-t.build/Objects-normal/wasm32/CSwiftWebSignals.d --serialize-diagnostics /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-web.build/Debug-webassembly-wasm32/CSwiftWebSignals-t.build/Objects-normal/wasm32/CSwiftWebSignals.dia -c /host/spi-builder-workspace/Sources/CSwiftWebSignals/CSwiftWebSignals.c -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-web.build/Debug-webassembly-wasm32/CSwiftWebSignals-t.build/Objects-normal/wasm32/CSwiftWebSignals.o
error: Build failed
BUILD FAILURE 6.4 wasm