Swift Package IndexBuild Information
Failed to build lua4swift, reference v2.0.0 (3c74ee), with Swift 6.3 for Wasm on 17 Apr 2026 00:35:06 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-latest swift build --swift-sdk swift-6.3-RELEASE_wasm 2>&1Build Log
========================================
RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/SwiftyLua/lua4swift.git
Reference: v2.0.0
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/SwiftyLua/lua4swift
* tag v2.0.0 -> FETCH_HEAD
HEAD is now at 3c74eee Update Package.swift
Cloned https://github.com/SwiftyLua/lua4swift.git
Revision (git rev-parse @):
3c74eeec954b26e2314dadc8eeae3c5c75040001
SUCCESS checkout https://github.com/SwiftyLua/lua4swift.git at v2.0.0
========================================
Build
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Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/SwiftyLua/lua4swift.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-latest swift build --swift-sdk swift-6.3-RELEASE_wasm 2>&1
wasm-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:d69f4e7582c319245442d62a08b2d7c7fd5a0c0c69f5d2ef11d1530cd8d3329b
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-latest
Fetching https://github.com/Quick/Nimble
Fetching https://github.com/SwiftyLua/CLua
Fetching https://github.com/Quick/Quick
[1/207] Fetching clua
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[2742/34932] Fetching clua, quick, nimble
Fetched https://github.com/SwiftyLua/CLua from cache (2.67s)
Fetched https://github.com/Quick/Quick from cache (2.68s)
Fetched https://github.com/Quick/Nimble from cache (2.70s)
Computing version for https://github.com/Quick/Quick
Computed https://github.com/Quick/Quick at 7.6.2 (3.58s)
Fetching https://github.com/apple/swift-argument-parser.git
Fetching https://github.com/apple/swift-algorithms.git
[1/6058] Fetching swift-algorithms
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Fetched https://github.com/apple/swift-algorithms.git from cache (1.25s)
Fetched https://github.com/apple/swift-argument-parser.git from cache (1.26s)
Computing version for https://github.com/Quick/Nimble
Computed https://github.com/Quick/Nimble at 13.8.0 (1.70s)
Fetching https://github.com/mattgallagher/CwlPreconditionTesting.git
[1/1257] Fetching cwlpreconditiontesting
Fetched https://github.com/mattgallagher/CwlPreconditionTesting.git from cache (0.26s)
Computing version for https://github.com/apple/swift-algorithms.git
Computed https://github.com/apple/swift-algorithms.git at 1.2.1 (2.74s)
Fetching https://github.com/apple/swift-numerics.git
[1/6416] Fetching swift-numerics
Fetched https://github.com/apple/swift-numerics.git from cache (0.51s)
Computing version for https://github.com/mattgallagher/CwlPreconditionTesting.git
Computed https://github.com/mattgallagher/CwlPreconditionTesting.git at 2.2.2 (1.06s)
Fetching https://github.com/mattgallagher/CwlCatchException.git
[1/460] Fetching cwlcatchexception
Fetched https://github.com/mattgallagher/CwlCatchException.git from cache (0.22s)
Computing version for https://github.com/mattgallagher/CwlCatchException.git
Computed https://github.com/mattgallagher/CwlCatchException.git at 2.2.1 (0.80s)
Computing version for https://github.com/apple/swift-numerics.git
Computed https://github.com/apple/swift-numerics.git at 1.1.1 (0.45s)
Computing version for https://github.com/apple/swift-argument-parser.git
Computed https://github.com/apple/swift-argument-parser.git at 1.7.1 (0.49s)
Computing version for https://github.com/SwiftyLua/CLua
Computed https://github.com/SwiftyLua/CLua at 5.4.7 (0.43s)
Creating working copy for https://github.com/apple/swift-algorithms.git
Working copy of https://github.com/apple/swift-algorithms.git resolved at 1.2.1
Creating working copy for https://github.com/Quick/Quick
Working copy of https://github.com/Quick/Quick resolved at 7.6.2
Creating working copy for https://github.com/Quick/Nimble
Working copy of https://github.com/Quick/Nimble resolved at 13.8.0
Creating working copy for https://github.com/SwiftyLua/CLua
Working copy of https://github.com/SwiftyLua/CLua resolved at 5.4.7
Creating working copy for https://github.com/apple/swift-numerics.git
Working copy of https://github.com/apple/swift-numerics.git resolved at 1.1.1
Creating working copy for https://github.com/apple/swift-argument-parser.git
Working copy of https://github.com/apple/swift-argument-parser.git resolved at 1.7.1
Creating working copy for https://github.com/mattgallagher/CwlCatchException.git
Working copy of https://github.com/mattgallagher/CwlCatchException.git resolved at 2.2.1
Creating working copy for https://github.com/mattgallagher/CwlPreconditionTesting.git
Working copy of https://github.com/mattgallagher/CwlPreconditionTesting.git resolved at 2.2.2
warning: 'nimble': found 1 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
/host/spi-builder-workspace/.build/checkouts/Nimble/Sources/Nimble/PrivacyInfo.xcprivacy
warning: 'quick': found 1 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
/host/spi-builder-workspace/.build/checkouts/Quick/Sources/Quick/PrivacyInfo.xcprivacy
[1/1] Compiling plugin LintCommandPlugin
[2/2] Compiling plugin LintWarning
[3/3] Compiling plugin LintError
[4/4] Compiling plugin DefocusCommandPlugin
[5/5] Compiling plugin GenerateManual
[6/6] Compiling plugin GenerateDoccReference
Building for debugging...
[6/43] Write sources
[7/43] Compiling CLua lutf8lib.c
In file included from /host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/lzio.c:19:
In file included from /host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/lstate.h:130:
/root/.swiftpm/swift-sdks/swift-6.3-RELEASE_wasm.artifactbundle/swift-6.3-RELEASE_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, \
| ^
In file included from /host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/lzio.c:19:
/host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/lstate.h:184:16: error: unknown type name 'sig_atomic_t'
184 | volatile l_signalT trap; /* function is tracing lines/counts */
| ^
/host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/lstate.h:131:19: note: expanded from macro 'l_signalT'
131 | #define l_signalT sig_atomic_t
| ^
/host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/lstate.h:331:12: error: unknown type name 'sig_atomic_t'
331 | volatile l_signalT hookmask;
| ^
/host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/lstate.h:131:19: note: expanded from macro 'l_signalT'
131 | #define l_signalT sig_atomic_t
| ^
3 errors generated.
[8/43] Compiling CLua lzio.c
In file included from /host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/lvm.c:21:
In file included from /host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/ldebug.h:11:
In file included from /host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/lstate.h:130:
/root/.swiftpm/swift-sdks/swift-6.3-RELEASE_wasm.artifactbundle/swift-6.3-RELEASE_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, \
| ^
In file included from /host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/lvm.c:21:
In file included from /host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/ldebug.h:11:
/host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/lstate.h:184:16: error: unknown type name 'sig_atomic_t'
184 | volatile l_signalT trap; /* function is tracing lines/counts */
| ^
/host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/lstate.h:131:19: note: expanded from macro 'l_signalT'
131 | #define l_signalT sig_atomic_t
| ^
/host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/lstate.h:331:12: error: unknown type name 'sig_atomic_t'
331 | volatile l_signalT hookmask;
| ^
/host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/lstate.h:131:19: note: expanded from macro 'l_signalT'
131 | #define l_signalT sig_atomic_t
| ^
[8/43] Compiling CLua lvm.c
[8/43] Compiling CLua lundump.c
[8/43] Write swift-version-24593BA9C3E375BF.txt
/host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/lauxlib.c:270:10: fatal error: 'sys/wait.h' file not found
270 | #include <sys/wait.h>
| ^~~~~~~~~~~~
1 error generated.
[8/43] Compiling CLua lauxlib.c
[8/43] Compiling CLua lbaselib.c
In file included from /host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/lapi.c:19:
In file included from /host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/lapi.h:12:
In file included from /host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/lstate.h:130:
/root/.swiftpm/swift-sdks/swift-6.3-RELEASE_wasm.artifactbundle/swift-6.3-RELEASE_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, \
| ^
In file included from /host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/lapi.c:19:
In file included from /host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/lapi.h:12:
/host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/lstate.h:184:16: error: unknown type name 'sig_atomic_t'
184 | volatile l_signalT trap; /* function is tracing lines/counts */
| ^
/host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/lstate.h:131:19: note: expanded from macro 'l_signalT'
131 | #define l_signalT sig_atomic_t
| ^
/host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/lstate.h:331:12: error: unknown type name 'sig_atomic_t'
331 | volatile l_signalT hookmask;
| ^
/host/spi-builder-workspace/.build/checkouts/CLua/Sources/CLua/include/lstate.h:131:19: note: expanded from macro 'l_signalT'
131 | #define l_signalT sig_atomic_t
| ^
[8/43] Compiling CLua lapi.c
[8/43] Compiling CLua lcorolib.c
BUILD FAILURE 6.3 wasm