Swift Package IndexBuild Information
Failed to build swift-kafka-client, reference 1.0.0-alpha.9 (434af1), with Swift 6.3 for Wasm on 21 Apr 2026 04:00:33 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/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/swift-server/swift-kafka-client.git
Reference: 1.0.0-alpha.9
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/swift-server/swift-kafka-client
* tag 1.0.0-alpha.9 -> FETCH_HEAD
HEAD is now at 434af11 Use `openssl@3` when building on macOS (#193)
Submodule path 'Sources/Crdkafka/librdkafka': checked out 'b4c608570f796c18ff2211a7af876046d264d392'
Submodule 'Sources/Crdkafka/librdkafka' (https://github.com/confluentinc/librdkafka) registered for path 'Sources/Crdkafka/librdkafka'
Cloning into '/host/spi-builder-workspace/Sources/Crdkafka/librdkafka'...
Cloned https://github.com/swift-server/swift-kafka-client.git
Revision (git rev-parse @):
434af114fda74d87e344980917d196f957dab1ec
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/swift-server/swift-kafka-client.git at 1.0.0-alpha.9
========================================
Build
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Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/swift-server/swift-kafka-client.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$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/facebook/zstd.git
Fetching https://github.com/apple/swift-metrics
Fetching https://github.com/swift-server/swift-service-lifecycle.git
Fetching https://github.com/apple/swift-log.git
Fetching https://github.com/apple/swift-nio.git
[1/2745] Fetching swift-service-lifecycle
[770/5932] Fetching swift-service-lifecycle, swift-metrics
[5615/12567] Fetching swift-service-lifecycle, swift-metrics, swift-log
[8388/96623] Fetching swift-service-lifecycle, swift-metrics, swift-log, zstd
Fetched https://github.com/apple/swift-metrics from cache (0.53s)
[8894/93436] Fetching swift-service-lifecycle, swift-log, zstd
[15265/176600] Fetching swift-service-lifecycle, swift-log, zstd, swift-nio
Fetched https://github.com/apple/swift-log.git from cache (0.75s)
[13664/169965] Fetching swift-service-lifecycle, zstd, swift-nio
Fetched https://github.com/swift-server/swift-service-lifecycle.git from cache (20.39s)
Fetched https://github.com/facebook/zstd.git from cache (20.52s)
Fetched https://github.com/apple/swift-nio.git from cache (20.56s)
Computing version for https://github.com/facebook/zstd.git
Computed https://github.com/facebook/zstd.git at 1.5.7 (24.45s)
Computing version for https://github.com/apple/swift-metrics
Computed https://github.com/apple/swift-metrics at 2.10.0 (0.51s)
Computing version for https://github.com/swift-server/swift-service-lifecycle.git
Computed https://github.com/swift-server/swift-service-lifecycle.git at 2.11.0 (0.45s)
Fetching https://github.com/apple/swift-async-algorithms.git
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Fetched https://github.com/apple/swift-async-algorithms.git from cache (0.89s)
Computing version for https://github.com/apple/swift-async-algorithms.git
Computed https://github.com/apple/swift-async-algorithms.git at 1.1.3 (1.37s)
Fetching https://github.com/apple/swift-collections.git
[1/23583] Fetching swift-collections
Fetched https://github.com/apple/swift-collections.git from cache (1.53s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.4.1 (2.25s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.12.0 (0.44s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.98.0 (0.79s)
Fetching https://github.com/apple/swift-system.git
Fetching https://github.com/apple/swift-atomics.git
[1/5601] Fetching swift-system
[2634/7421] Fetching swift-system, swift-atomics
Fetched https://github.com/apple/swift-atomics.git from cache (0.53s)
Fetched https://github.com/apple/swift-system.git from cache (0.53s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.0 (0.99s)
Computing version for https://github.com/apple/swift-system.git
Computed https://github.com/apple/swift-system.git at 1.6.4 (0.51s)
Creating working copy for https://github.com/swift-server/swift-service-lifecycle.git
Working copy of https://github.com/swift-server/swift-service-lifecycle.git resolved at 2.11.0
Creating working copy for https://github.com/facebook/zstd.git
Working copy of https://github.com/facebook/zstd.git resolved at 1.5.7
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 2.98.0
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-async-algorithms.git
Working copy of https://github.com/apple/swift-async-algorithms.git resolved at 1.1.3
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-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-metrics
Working copy of https://github.com/apple/swift-metrics resolved at 2.10.0
warning: you may be able to install openssl using your system-packager:
apt-get install libssl-dev
warning: you may be able to install openssl using your system-packager:
apt-get install libssl-dev
Building for debugging...
[0/116] Write sources
[13/116] Compiling _AtomicsShims.c
[14/116] Compiling tinycthread_extra.c
[15/116] Compiling crc32c.c
In file included from /host/spi-builder-workspace/Sources/Crdkafka/librdkafka/src/tinycthread.c:32:
/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, \
| ^
1 error generated.
[16/116] Compiling tinycthread.c
[16/116] Compiling rdxxhash.c
[16/116] Compiling regexp.c
[16/116] Compiling lz4hc.c
In file included from /host/spi-builder-workspace/Sources/Crdkafka/librdkafka/src/snappy.c:61:
In file included from /host/spi-builder-workspace/Sources/Crdkafka/librdkafka/src/snappy_compat.h:31:
/host/spi-builder-workspace/Sources/Crdkafka/librdkafka/src/rdkafka_int.h:34:9: warning: '_GNU_SOURCE' macro redefined [-Wmacro-redefined]
34 | #define _GNU_SOURCE /* for strndup() */
| ^
<command line>:3:9: note: previous definition is here
3 | #define _GNU_SOURCE 1
| ^
[16/116] Compiling snappy.c
[16/116] Compiling lz4frame.c
[16/116] Compiling lz4.c
[16/116] Write swift-version-24593BA9C3E375BF.txt
BUILD FAILURE 6.3 wasm