Swift Package Index

Build Information

Failed to build swift-subprocess, reference main (37e66c), with Swift 6.3 for Wasm on 1 May 2026 10:21:04 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>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
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 37e66c5 Fix flaky testSubprocessDoesNotInheritRandomFileDescriptors on macOS CI (#257)
Cloned https://github.com/swiftlang/swift-subprocess.git
Revision (git rev-parse @):
37e66c5c264e1b2b00e70237073fa89a098e5b53
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/swiftlang/swift-subprocess.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.3
Building package at path:  $PWD
https://github.com/swiftlang/swift-subprocess.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$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/apple/swift-system
Fetching https://github.com/apple/swift-docc-plugin
[1/2287] Fetching swift-docc-plugin
[230/7888] Fetching swift-docc-plugin, swift-system
Fetched https://github.com/apple/swift-docc-plugin from cache (0.54s)
Fetched https://github.com/apple/swift-system from cache (0.62s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.5.0 (4.54s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3708] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (0.57s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (1.31s)
Computing version for https://github.com/apple/swift-system
Computed https://github.com/apple/swift-system at 1.6.4 (0.76s)
Creating working copy for https://github.com/apple/swift-system
Working copy of https://github.com/apple/swift-system resolved at 1.6.4
Creating working copy for https://github.com/apple/swift-docc-plugin
Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.5.0
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] Copying Resources
[3/9] Write sources
[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:47:5: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
   47 |     pthread_t * _Nonnull ptr,
      |     ^
/host/spi-builder-workspace/Sources/_SubprocessCShims/include/process_shims.h:47:5: note: insert '_Nullable' if the pointer may be null
   47 |     pthread_t * _Nonnull ptr,
      |     ^
      |               _Nullable
/host/spi-builder-workspace/Sources/_SubprocessCShims/include/process_shims.h:47:5: note: insert '_Nonnull' if the pointer should never be null
   47 |     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 6.3 wasm