Swift Package IndexBuild Information
Failed to build swift-sdk-generator, reference main (571909), with Swift 6.2 for Wasm on 24 Apr 2026 05:58:36 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 swift-6.2-RELEASE_wasm 2>&1Build Log
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swiftlang/swift-sdk-generator.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/swiftlang/swift-sdk-generator
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 5719098 Allow merging of multiple Wasm Swift SDKs in a single bundle (#263)
Cloned https://github.com/swiftlang/swift-sdk-generator.git
Revision (git rev-parse @):
57190988c478930fbcee768f6119384e3ad5a0a8
SUCCESS checkout https://github.com/swiftlang/swift-sdk-generator.git at main
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.2
Building package at path: $PWD
https://github.com/swiftlang/swift-sdk-generator.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-3":/host -w "$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 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
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Computed https://github.com/apple/swift-system at 1.6.4 (0.00s)
Computed https://github.com/apple/swift-log.git at 1.12.0 (0.00s)
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Working copy of https://github.com/swift-server/swift-service-lifecycle resolved at 2.7.0
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Working copy of https://github.com/apple/swift-nio-http2.git resolved at 1.43.0
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Working copy of https://github.com/apple/swift-nio-ssl.git resolved at 2.37.0
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Working copy of https://github.com/apple/swift-nio-extras.git resolved at 1.26.0
Creating working copy for https://github.com/apple/swift-system
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Creating working copy for https://github.com/apple/swift-http-structured-headers.git
Working copy of https://github.com/apple/swift-http-structured-headers.git resolved at 1.7.0
Creating working copy for https://github.com/apple/swift-crypto.git
Working copy of https://github.com/apple/swift-crypto.git resolved at 3.15.1
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Working copy of https://github.com/apple/swift-distributed-tracing.git resolved at 1.4.1
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Working copy of https://github.com/apple/swift-argument-parser resolved at 1.7.1
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Working copy of https://github.com/apple/swift-log.git resolved at 1.12.0
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Working copy of https://github.com/apple/swift-numerics.git resolved at 1.1.1
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Working copy of https://github.com/apple/swift-service-context.git resolved at 1.3.0
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Working copy of https://github.com/apple/swift-configuration.git resolved at 1.0.0
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Working copy of https://github.com/apple/swift-nio.git resolved at 2.99.0
warning: couldn't find pc file for sqlite3
warning: couldn't find pc file for sqlite3
[1/1] Compiling plugin GenerateManual
[2/2] Compiling plugin GenerateDoccReference
Building for debugging...
[2/868] Write sources
[15/868] Write swift-version-24593BA9C3E375BF.txt
In file included from /host/spi-builder-workspace/Sources/CProcessSpawnSync/spawner.c:16:
/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/CProcessSpawnSync/spawner.c:24:10: fatal error: 'sys/wait.h' file not found
24 | #include <sys/wait.h>
| ^~~~~~~~~~~~
2 errors generated.
[16/868] Compiling CProcessSpawnSync spawner.c
[16/868] Compiling thread_win.cc
[16/868] Compiling trust_token.cc
[16/868] Compiling a_sign.cc
[16/868] Compiling voprf.cc
[16/868] Compiling _NumericsShims _NumericsShims.c
[16/868] Compiling pmbtoken.cc
[16/868] Compiling a_digest.cc
BUILD FAILURE 6.2 wasm