The Swift Package Index logo.Swift Package Index

Has it really been five years since Swift Package Index launched? Read our anniversary blog post!

Build Information

Failed to build Subprocess, reference main (ab2072), with Swift 6.2 for Wasm on 18 Nov 2025 01:36:45 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:wasm-6.2-latest swift build --swift-sdk wasm32-unknown-wasip1 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.68.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swiftlang/swift-subprocess.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-subprocess
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at ab2072d Keep order of paths fixed (#211)
Cloned https://github.com/swiftlang/swift-subprocess.git
Revision (git rev-parse @):
ab2072d457d1464b17166cc02125fc9fc0791e1a
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/swiftlang/swift-subprocess.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.2
Building package at path:  $PWD
https://github.com/swiftlang/swift-subprocess.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:wasm-6.2-latest swift build --swift-sdk wasm32-unknown-wasip1 2>&1
wasm-6.2-latest: Pulling from finestructure/spi-images
Digest: sha256:f6b6b9bdb5d5605d727da337418fc455cd8a0394d3a815b70631008c48829755
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:wasm-6.2-latest
warning: multiple Swift SDKs match target triple `wasm32-unknown-wasip1` and host triple x86_64-unknown-linux-gnu, selected one at /root/.swiftpm/swift-sdks/swift-6.2-RELEASE_wasm.artifactbundle/swift-6.2-RELEASE_wasm/wasm32-unknown-wasip1/embedded-swift-sdk.json
Fetching https://github.com/apple/swift-docc-plugin
Fetching https://github.com/apple/swift-system
[1/2158] Fetching swift-docc-plugin
[2159/7340] Fetching swift-docc-plugin, swift-system
Fetched https://github.com/apple/swift-docc-plugin from cache (0.41s)
[4768/5182] Fetching swift-system
Fetched https://github.com/apple/swift-system from cache (0.52s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.4.5 (2.54s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3578] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (0.40s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (0.85s)
Computing version for https://github.com/apple/swift-system
Computed https://github.com/apple/swift-system at 1.6.3 (0.38s)
Creating working copy for https://github.com/apple/swift-docc-plugin
Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.4.5
Creating working copy for https://github.com/apple/swift-system
Working copy of https://github.com/apple/swift-system resolved at 1.6.3
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
[1/1] Compiling plugin Swift-DocC Preview
[2/2] Compiling plugin Swift-DocC
Building for debugging...
[2/9] Write sources
[5/9] Copying Resources
[6/9] Compiling CSystem shims.c
In file included from /host/spi-builder-workspace/Sources/_SubprocessCShims/process_shims.c:23:
/host/spi-builder-workspace/Sources/_SubprocessCShims/include/process_shims.h:44:5: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
   44 |     pthread_t * _Nonnull ptr,
      |     ^
/host/spi-builder-workspace/Sources/_SubprocessCShims/include/process_shims.h:44:5: note: insert '_Nullable' if the pointer may be null
   44 |     pthread_t * _Nonnull ptr,
      |     ^
      |               _Nullable
/host/spi-builder-workspace/Sources/_SubprocessCShims/include/process_shims.h:44:5: note: insert '_Nonnull' if the pointer should never be null
   44 |     pthread_t * _Nonnull ptr,
      |     ^
      |               _Nonnull
/host/spi-builder-workspace/Sources/_SubprocessCShims/process_shims.c:31:10: fatal error: 'grp.h' file not found
   31 | #include <grp.h>
      |          ^~~~~~~
1 warning and 1 error generated.
[7/9] Compiling _SubprocessCShims process_shims.c
[7/9] Write swift-version-24593BA9C3E375BF.txt
BUILD FAILURE 6.2 wasm