Swift Package IndexBuild Information
Failed to build llbuild2, reference main (bc6abf), with Swift 6.2 for Wasm on 15 Apr 2026 02:49:26 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/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 swift-6.2-RELEASE_wasm 2>&1Build Log
========================================
RunAll
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Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/apple/swift-llbuild2.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/apple/swift-llbuild2
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at bc6abf3 Merge pull request #254 from apple/fix-metrics
Cloned https://github.com/apple/swift-llbuild2.git
Revision (git rev-parse @):
bc6abf3eb3498308745e5f1b43af789f81932c6c
SUCCESS checkout https://github.com/apple/swift-llbuild2.git at main
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.2
Building package at path: $PWD
https://github.com/apple/swift-llbuild2.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$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 swift-6.2-RELEASE_wasm 2>&1
wasm-6.2-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:2a8b2d9e022a9894c61e0736af7cdaa1ee64c002dbb133a55c0d7e8980b3ad16
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.2-latest
Fetching https://github.com/apple/swift-system.git
Fetching https://github.com/apple/swift-tools-support-core.git
Fetching https://github.com/apple/swift-log.git
Fetching https://github.com/apple/swift-protobuf.git
[1/6569] Fetching swift-log
[2/12170] Fetching swift-log, swift-system
[5673/58718] Fetching swift-log, swift-system, swift-protobuf
[5674/65905] Fetching swift-log, swift-system, swift-protobuf, swift-tools-support-core
Fetching https://github.com/apple/swift-nio.git
Fetching https://github.com/apple/swift-tools-support-async.git
[25875/66815] Fetching swift-log, swift-system, swift-protobuf, swift-tools-support-core, swift-tools-support-async
[30044/149966] Fetching swift-log, swift-system, swift-protobuf, swift-tools-support-core, swift-tools-support-async, swift-nio
Fetched https://github.com/apple/swift-tools-support-core.git from cache (22.50s)
Fetched https://github.com/apple/swift-system.git from cache (22.51s)
Fetched https://github.com/apple/swift-log.git from cache (22.52s)
Fetching https://github.com/apple/swift-collections.git
Fetching https://github.com/apple/swift-atomics.git
Fetching https://github.com/apple/swift-async-algorithms.git
Fetched https://github.com/apple/swift-protobuf.git from cache (22.63s)
Fetched https://github.com/apple/swift-tools-support-async.git from cache (20.87s)
Fetched https://github.com/apple/swift-nio.git from cache (21.05s)
[1/6235] Fetching swift-async-algorithms
[2/29772] Fetching swift-async-algorithms, swift-collections
[3/31592] Fetching swift-async-algorithms, swift-collections, swift-atomics
Fetched https://github.com/apple/swift-atomics.git from cache (3.52s)
Fetched https://github.com/apple/swift-async-algorithms.git from cache (3.54s)
Fetched https://github.com/apple/swift-collections.git from cache (5.55s)
Computing version for https://github.com/apple/swift-tools-support-async.git
Computed https://github.com/apple/swift-tools-support-async.git at 0.18.0 (33.05s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.0 (5.71s)
Computing version for https://github.com/apple/swift-async-algorithms.git
Computed https://github.com/apple/swift-async-algorithms.git at 1.1.3 (2.48s)
Computing version for https://github.com/apple/swift-tools-support-core.git
Computed https://github.com/apple/swift-tools-support-core.git at 0.7.3 (3.20s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.4.1 (1.02s)
Computing version for https://github.com/apple/swift-system.git
Computed https://github.com/apple/swift-system.git at 1.6.4 (1.19s)
Computing version for https://github.com/apple/swift-protobuf.git
Computed https://github.com/apple/swift-protobuf.git at 1.36.1 (1.59s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.12.0 (1.30s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.97.1 (1.09s)
Creating working copy for https://github.com/apple/swift-tools-support-async.git
Working copy of https://github.com/apple/swift-tools-support-async.git resolved at 0.18.0
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.4.1
Creating working copy for https://github.com/apple/swift-atomics.git
Working copy of https://github.com/apple/swift-atomics.git resolved at 1.3.0
Creating working copy for https://github.com/apple/swift-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.12.0
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 0.7.3
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 2.97.1
Creating working copy for https://github.com/apple/swift-system.git
Working copy of https://github.com/apple/swift-system.git resolved at 1.6.4
Creating working copy for https://github.com/apple/swift-protobuf.git
Working copy of https://github.com/apple/swift-protobuf.git resolved at 1.36.1
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 1.1.3
[1/1] Compiling plugin SwiftProtobufPlugin
Building for debugging...
[1/50] Write sources
[9/50] Compiling FXCBLAKE3 blake3_simd_avx512.c
[10/50] Compiling FXCBLAKE3 blake3_simd_avx2.c
[11/50] Compiling _AtomicsShims.c
[12/50] Write sources
[31/50] Compiling TSCclibc process.c
In file included from /host/spi-builder-workspace/Sources/FXCProcessSpawnSync/spawner.c:18:
/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, \
| ^
/host/spi-builder-workspace/Sources/FXCProcessSpawnSync/spawner.c:26:10: fatal error: 'sys/wait.h' file not found
26 | #include <sys/wait.h>
| ^~~~~~~~~~~~
2 errors generated.
[32/50] Compiling FXCProcessSpawnSync spawner.c
[32/50] Compiling TSCclibc strerror.c
[32/50] Compiling CSystem shims.c
[32/50] Compiling CNIOWindows shim.c
[32/50] Compiling TSCclibc libc.c
[32/50] Compiling FXCBLAKE3 blake3_all.c
[32/50] Compiling FXCBLAKE3 blake3_simd_sse41.c
[32/50] Write swift-version-24593BA9C3E375BF.txt
BUILD FAILURE 6.2 wasm