Swift Package IndexBuild Information
Failed to build LuaSwift, reference v1.7.0 (cde1fd), with Swift 6.2 for Wasm on 6 Apr 2026 22:19:59 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-6.2-latest swift build --swift-sdk wasm32-unknown-wasip1 2>&1Build Log
========================================
RunAll
========================================
Builder version: 4.69.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/ChrisGVE/LuaSwift.git
Reference: v1.7.0
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/ChrisGVE/LuaSwift
* tag v1.7.0 -> FETCH_HEAD
HEAD is now at cde1fd6 merge dev into main for v1.7.0 release
Cloned https://github.com/ChrisGVE/LuaSwift.git
Revision (git rev-parse @):
cde1fd64214b6bb754de93ba0e0cb5d5e7f5e675
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/ChrisGVE/LuaSwift.git at v1.7.0
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.2
Building package at path: $PWD
https://github.com/ChrisGVE/LuaSwift.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.2-latest swift build --swift-sdk wasm32-unknown-wasip1 2>&1
wasm-6.2-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:de1420b02d93a9deec3e168cca69275e06e27da7632503e71651af6daad007b1
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.2-latest
warning: multiple Swift SDKs match target triple `wasm32-unknown-wasip1` and host triple x86_64-unknown-linux-gnu, selected one at /root/.swiftpm/swift-sdks/swift-6.2-RELEASE_wasm.artifactbundle/swift-6.2-RELEASE_wasm/wasm32-unknown-wasip1/swift-sdk.json
Fetching https://github.com/ChrisGVE/NumericSwift.git
Fetching https://github.com/apple/swift-docc-plugin
Fetching https://github.com/LebJe/TOMLKit.git
Fetching https://github.com/ChrisGVE/ArraySwift.git
Fetching https://github.com/ChrisGVE/PlotSwift.git
Fetching https://github.com/jpsim/Yams.git
[1/145] Fetching arrayswift
[17/3787] Fetching arrayswift, plotswift
[183/27201] Fetching arrayswift, plotswift, tomlkit
[1120/29423] Fetching arrayswift, plotswift, tomlkit, swift-docc-plugin
[1577/29887] Fetching arrayswift, plotswift, tomlkit, swift-docc-plugin, numericswift
Fetched https://github.com/ChrisGVE/NumericSwift.git from cache (0.39s)
[5388/29423] Fetching arrayswift, plotswift, tomlkit, swift-docc-plugin
[8676/40970] Fetching arrayswift, plotswift, tomlkit, swift-docc-plugin, yams
Fetched https://github.com/apple/swift-docc-plugin from cache (1.64s)
[32745/38748] Fetching arrayswift, plotswift, tomlkit, yams
Fetched https://github.com/jpsim/Yams.git from cache (2.34s)
[23705/27201] Fetching arrayswift, plotswift, tomlkit
Fetched https://github.com/ChrisGVE/ArraySwift.git from cache (4.37s)
Fetched https://github.com/LebJe/TOMLKit.git from cache (4.39s)
Fetched https://github.com/ChrisGVE/PlotSwift.git from cache (4.49s)
Computing version for https://github.com/ChrisGVE/ArraySwift.git
Computed https://github.com/ChrisGVE/ArraySwift.git at 0.1.0 (5.06s)
Computing version for https://github.com/ChrisGVE/PlotSwift.git
Computed https://github.com/ChrisGVE/PlotSwift.git at 0.1.0 (0.48s)
Computing version for https://github.com/LebJe/TOMLKit.git
Computed https://github.com/LebJe/TOMLKit.git at 0.6.0 (0.46s)
Computing version for https://github.com/ChrisGVE/NumericSwift.git
Computed https://github.com/ChrisGVE/NumericSwift.git at 0.1.4 (0.51s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.4.6 (0.42s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3672] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (0.45s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (0.96s)
Computing version for https://github.com/jpsim/Yams.git
Computed https://github.com/jpsim/Yams.git at 5.4.0 (0.46s)
Creating working copy for https://github.com/jpsim/Yams.git
Working copy of https://github.com/jpsim/Yams.git resolved at 5.4.0
Creating working copy for https://github.com/apple/swift-docc-plugin
Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.4.6
Creating working copy for https://github.com/ChrisGVE/ArraySwift.git
Working copy of https://github.com/ChrisGVE/ArraySwift.git resolved at 0.1.0
Creating working copy for https://github.com/LebJe/TOMLKit.git
Working copy of https://github.com/LebJe/TOMLKit.git resolved at 0.6.0
Creating working copy for https://github.com/ChrisGVE/PlotSwift.git
Working copy of https://github.com/ChrisGVE/PlotSwift.git resolved at 0.1.0
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
Creating working copy for https://github.com/ChrisGVE/NumericSwift.git
Working copy of https://github.com/ChrisGVE/NumericSwift.git resolved at 0.1.4
[1/1] Compiling plugin Swift-DocC Preview
[2/2] Compiling plugin Swift-DocC
Building for debugging...
[2/52] Write sources
[7/52] Compiling writer.c
[8/52] Compiling CLua lbaselib.c
In file included from /host/spi-builder-workspace/Sources/CLua/lcode.c:21:
In file included from /host/spi-builder-workspace/Sources/CLua/include/ldebug.h:11:
In file included from /host/spi-builder-workspace/Sources/CLua/include/lstate.h:130:
/root/.swiftpm/swift-sdks/swift-6.2-RELEASE_wasm.artifactbundle/swift-6.2-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/Sources/CLua/lcode.c:21:
In file included from /host/spi-builder-workspace/Sources/CLua/include/ldebug.h:11:
/host/spi-builder-workspace/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/Sources/CLua/include/lstate.h:131:19: note: expanded from macro 'l_signalT'
131 | #define l_signalT sig_atomic_t
| ^
/host/spi-builder-workspace/Sources/CLua/include/lstate.h:331:12: error: unknown type name 'sig_atomic_t'
331 | volatile l_signalT hookmask;
| ^
/host/spi-builder-workspace/Sources/CLua/include/lstate.h:131:19: note: expanded from macro 'l_signalT'
131 | #define l_signalT sig_atomic_t
| ^
3 errors generated.
[9/52] Compiling CLua lcode.c
[9/52] Write swift-version-24593BA9C3E375BF.txt
[9/52] Compiling emitter.c
[9/52] Compiling CLua lauxlib.c
[9/52] Compiling scanner.c
[9/52] Compiling parser.c
[9/52] Compiling api.c
[9/52] Compiling reader.c
BUILD FAILURE 6.2 wasm