Swift Package IndexBuild Information
Failed to build llbuild2, reference 2.0.1 (96c201), with Swift 6.3 for Wasm on 24 Sep 2026 17:50:14 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344845-0":/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-6.3-latest swift build --swift-sdk swift-6.3.2-RELEASE_wasm 2>&1Build Log
========================================
RunAll
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Builder version: 5.1.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/apple/swift-llbuild2.git
Reference: 2.0.1
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/apple/swift-llbuild2
* tag 2.0.1 -> FETCH_HEAD
HEAD is now at 96c2013 Update dependency constraint to reflect actual usage
Cloned https://github.com/apple/swift-llbuild2.git
Revision (git rev-parse @):
96c201312d37355857ad02e36f0b5c36a710929b
SUCCESS checkout https://github.com/apple/swift-llbuild2.git at 2.0.1
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Build
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Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/apple/swift-llbuild2.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344845-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.3-latest swift build --swift-sdk swift-6.3.2-RELEASE_wasm 2>&1
wasm-6.3-latest: Pulling from saguaro1/spi-images
Digest: sha256:253aad7f5b11d25cf9eaef34120b94cd8a325782929c57fb304a7711494a3f9a
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.3-latest
Fetching https://github.com/apple/swift-system.git
Fetching https://github.com/apple/swift-nio.git
Fetching https://github.com/apple/swift-tools-support-core.git
Fetching https://github.com/apple/swift-protobuf.git
Fetching https://github.com/apple/swift-log.git
Fetching https://github.com/apple/swift-collections.git
[1/8165] Fetching swift-log
[8166/15081] Fetching swift-log, swift-system
[8512/22483] Fetching swift-log, swift-system, swift-tools-support-core
[22277/50185] Fetching swift-log, swift-system, swift-tools-support-core, swift-collections
[28302/104383] Fetching swift-log, swift-system, swift-tools-support-core, swift-collections, swift-protobuf
[32951/190474] Fetching swift-log, swift-system, swift-tools-support-core, swift-collections, swift-protobuf, swift-nio
Fetched https://github.com/apple/swift-collections.git from cache (1.42s)
Fetching https://github.com/apple/swift-async-algorithms.git
[89952/162772] Fetching swift-log, swift-system, swift-tools-support-core, swift-protobuf, swift-nio
[122059/169504] Fetching swift-log, swift-system, swift-tools-support-core, swift-protobuf, swift-nio, swift-async-algorithms
Fetched https://github.com/apple/swift-async-algorithms.git from cache (0.57s)
Fetching https://github.com/apple/swift-atomics.git
[133089/162772] Fetching swift-log, swift-system, swift-tools-support-core, swift-protobuf, swift-nio
[159522/164653] Fetching swift-log, swift-system, swift-tools-support-core, swift-protobuf, swift-nio, swift-atomics
Fetched https://github.com/apple/swift-atomics.git from cache (0.66s)
Fetched https://github.com/apple/swift-system.git from cache (5.58s)
Fetched https://github.com/apple/swift-tools-support-core.git from cache (5.58s)
Fetched https://github.com/apple/swift-log.git from cache (5.58s)
Fetched https://github.com/apple/swift-nio.git from cache (5.62s)
Fetched https://github.com/apple/swift-protobuf.git from cache (5.62s)
Computing version for https://github.com/apple/swift-tools-support-core.git
Computed https://github.com/apple/swift-tools-support-core.git at 0.8.0 (6.58s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.1 (0.14s)
Computing version for https://github.com/apple/swift-async-algorithms.git
Computed https://github.com/apple/swift-async-algorithms.git at 1.1.5 (0.18s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.7.0 (0.22s)
Computing version for https://github.com/apple/swift-system.git
Computed https://github.com/apple/swift-system.git at 1.8.1 (0.16s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.15.1 (0.14s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.103.0 (0.25s)
Computing version for https://github.com/apple/swift-protobuf.git
Computed https://github.com/apple/swift-protobuf.git at 1.38.1 (0.17s)
Creating working copy for https://github.com/apple/swift-protobuf.git
Working copy of https://github.com/apple/swift-protobuf.git resolved at 1.38.1
Creating working copy for https://github.com/apple/swift-tools-support-core.git
Working copy of https://github.com/apple/swift-tools-support-core.git resolved at 0.8.0
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
Creating working copy for https://github.com/apple/swift-system.git
Working copy of https://github.com/apple/swift-system.git resolved at 1.8.1
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-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.7.0
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
[1/1] Compiling plugin SwiftProtobufPlugin
Building for debugging...
[1/51] Write sources
[7/51] Compiling FXCBLAKE3 blake3_simd_avx512.c
[8/51] Write sources
[11/51] Compiling _AtomicsShims.c
[12/51] Write sources
In file included from /host/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCclibc/process.c:15:
/host/spi-builder-workspace/.build/checkouts/swift-tools-support-core/Sources/TSCclibc/include/process.h:3:10: fatal error: 'spawn.h' file not found
3 | #include <spawn.h>
| ^~~~~~~~~
1 error generated.
[14/51] Compiling TSCclibc process.c
[14/51] Write sources
[14/51] Compiling TSCclibc strerror.c
[14/51] Write sources
In file included from /host/spi-builder-workspace/Sources/FXCProcessSpawnSync/spawner.c:18:
/root/.swiftpm/swift-sdks/swift-6.3.2-RELEASE_wasm.artifactbundle/swift-6.3.2-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, \
| ^
/host/spi-builder-workspace/Sources/FXCProcessSpawnSync/spawner.c:26:10: fatal error: 'sys/wait.h' file not found
26 | #include <sys/wait.h>
| ^~~~~~~~~~~~
[14/51] Compiling FXCProcessSpawnSync spawner.c
[14/51] Compiling TSCclibc libc.c
[14/51] Compiling FXCBLAKE3 blake3_simd_sse41.c
[14/51] Write swift-version-24593BA9C3E375BF.txt
BUILD FAILURE 6.3 wasm