Swift Package Index

Build Information

Failed to build llbuild2, reference 2.0.1 (96c201), with Swift 6.1 for Wasm on 24 Sep 2026 17:50:29 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344845-1":/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-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
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
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/apple/swift-llbuild2.git
https://github.com/apple/swift-llbuild2.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344845-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures 2>&1
wasm-6.1-latest: Pulling from saguaro1/spi-images
Digest: sha256:beceeede496da67681f4fa220a6b97cc098a0178841a413735f598dc6bbaf4c8
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.1-latest
Fetching https://github.com/apple/swift-nio.git
Fetching https://github.com/apple/swift-tools-support-core.git
Fetching https://github.com/apple/swift-collections.git
Fetching https://github.com/apple/swift-system.git
Fetching https://github.com/apple/swift-protobuf.git
Fetching https://github.com/apple/swift-log.git
[1/8165] Fetching swift-log
[410/15567] Fetching swift-log, swift-tools-support-core
Fetched https://github.com/apple/swift-log.git from cache (0.59s)
Fetched https://github.com/apple/swift-tools-support-core.git from cache (0.59s)
Fetching https://github.com/apple/swift-async-algorithms.git
Fetching https://github.com/apple/swift-atomics.git
[1/6916] Fetching swift-system
[4082/61114] Fetching swift-system, swift-protobuf
[6434/88816] Fetching swift-system, swift-protobuf, swift-collections
Fetched https://github.com/apple/swift-system.git from cache (0.80s)
[5746/81900] Fetching swift-protobuf, swift-collections
[9071/167991] Fetching swift-protobuf, swift-collections, swift-nio
[30304/169872] Fetching swift-protobuf, swift-collections, swift-nio, swift-atomics
Fetched https://github.com/apple/swift-atomics.git from cache (0.56s)
[51538/167991] Fetching swift-protobuf, swift-collections, swift-nio
[65959/174723] Fetching swift-protobuf, swift-collections, swift-nio, swift-async-algorithms
Fetched https://github.com/apple/swift-async-algorithms.git from cache (0.77s)
[93672/167991] Fetching swift-protobuf, swift-collections, swift-nio
Fetched https://github.com/apple/swift-collections.git from cache (5.46s)
Fetched https://github.com/apple/swift-protobuf.git from cache (5.49s)
Fetched https://github.com/apple/swift-nio.git from cache (5.49s)
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 (6.45s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.1 (0.22s)
Computing version for https://github.com/apple/swift-async-algorithms.git
Computed https://github.com/apple/swift-async-algorithms.git at 1.1.5 (0.25s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.6.0 (0.33s)
Computing version for https://github.com/apple/swift-system.git
Computed https://github.com/apple/swift-system.git at 1.8.1 (0.25s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.15.1 (0.22s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.103.0 (0.44s)
Computing version for https://github.com/apple/swift-protobuf.git
Computed https://github.com/apple/swift-protobuf.git at 1.38.1 (0.33s)
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-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-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.6.0
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 0.8.0
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-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-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.15.1
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
[1/1] Compiling plugin SwiftProtobufPlugin
Building for debugging...
[1/51] Write sources
[24/51] Compiling FXCBLAKE3 blake3_simd_avx512.c
[25/51] Compiling TSCclibc libc.c
[25/51] Compiling FXCBLAKE3 blake3_simd_sse41.c
[27/51] Write sources
[30/51] Compiling _AtomicsShims.c
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.
[31/51] Compiling TSCclibc process.c
[31/51] Compiling CSystem shims.c
[31/51] Compiling CNIOWindows shim.c
[31/51] Compiling FXCBLAKE3 blake3_all.c
[31/51] Compiling FXCBLAKE3 blake3_simd_avx2.c
[31/51] Compiling TSCclibc strerror.c
In file included from /host/spi-builder-workspace/Sources/FXCProcessSpawnSync/spawner.c:18:
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/wasm32-unknown-wasi/WASI.sdk/include/wasm32-wasi/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, \
      |  ^
[31/51] Compiling FXCProcessSpawnSync spawner.c
[31/51] Write swift-version-24593BA9C3E375BF.txt
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344845-1":/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-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1
wasm-6.1-latest: Pulling from saguaro1/spi-images
Digest: sha256:beceeede496da67681f4fa220a6b97cc098a0178841a413735f598dc6bbaf4c8
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.1-latest
[0/1] Planning build
[1/1] Compiling plugin SwiftProtobufPlugin
Building for debugging...
[1/21] Compiling FXCBLAKE3 blake3_simd_avx2.c
[2/21] Compiling TSCclibc strerror.c
[3/21] Compiling CNIOWindows shim.c
[4/21] Compiling CSystem shims.c
In file included from /host/spi-builder-workspace/Sources/FXCProcessSpawnSync/spawner.c:18:
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/wasm32-unknown-wasi/WASI.sdk/include/wasm32-wasi/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:25:10: fatal error: 'pthread.h' file not found
   25 | #include <pthread.h>
      |          ^~~~~~~~~~~
2 errors generated.
[5/21] Compiling FXCProcessSpawnSync spawner.c
[5/21] Compiling CNIOWindows WSAStartup.c
[5/21] Compiling CNIOOpenBSD shim.c
[5/21] Compiling CNIOPosix event_loop_id.c
[5/21] Compiling CNIOWASI CNIOWASI.c
[5/21] Compiling FXCBLAKE3 blake3_all.c
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.
[5/21] Compiling TSCclibc process.c
[5/21] Write swift-version-24593BA9C3E375BF.txt
BUILD FAILURE 6.1 wasm