Swift Package Index

Build Information

Failed to build swift-prometheus, reference 2.3.0 (3b94f0), with Swift 6.2 for Wasm on 16 Feb 2026 18:53:33 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/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/swift-server/swift-prometheus.git
Reference: 2.3.0
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-prometheus
 * tag               2.3.0      -> FETCH_HEAD
HEAD is now at 3b94f0d update: remove Melissa Kilby (@incertum) from MAINTAINERS.md (#156)
Cloned https://github.com/swift-server/swift-prometheus.git
Revision (git rev-parse @):
3b94f0dc975d0ad36ae196484b6ab6342c14aa97
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/swift-server/swift-prometheus.git at 2.3.0
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.2
Building package at path:  $PWD
https://github.com/swift-server/swift-prometheus.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$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:c50555b47c4db0b0576f9f25702fbe2fdff28194c4a4f4c23a7dce4b3504c85e
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-atomics.git
Fetching https://github.com/apple/swift-metrics.git
[1/1820] Fetching swift-atomics
[20/4434] Fetching swift-atomics, swift-metrics
Fetched https://github.com/apple/swift-metrics.git from cache (0.32s)
Fetched https://github.com/apple/swift-atomics.git from cache (0.41s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.0 (0.83s)
Computing version for https://github.com/apple/swift-metrics.git
Computed https://github.com/apple/swift-metrics.git at 2.8.0 (0.40s)
Creating working copy for https://github.com/apple/swift-metrics.git
Working copy of https://github.com/apple/swift-metrics.git resolved at 2.8.0
Creating working copy for https://github.com/apple/swift-atomics.git
Working copy of https://github.com/apple/swift-atomics.git resolved at 1.3.0
Building for debugging...
[0/5] Write sources
[3/5] Compiling _AtomicsShims.c
[4/5] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[6/9] Emitting module CoreMetrics
/host/spi-builder-workspace/.build/checkouts/swift-metrics/Sources/CoreMetrics/Locks.swift:48:8: error: The concurrency lock module was unable to identify your C library.
 46 | #endif
 47 | #else
 48 | #error("The concurrency lock module was unable to identify your C library.")
    |        `- error: The concurrency lock module was unable to identify your C library.
 49 | #endif
 50 |
/host/spi-builder-workspace/.build/checkouts/swift-metrics/Sources/CoreMetrics/Locks.swift:194:50: error: cannot find type 'pthread_rwlock_t' in scope
192 |         UnsafeMutablePointer.allocate(capacity: 1)
193 |     #else
194 |     fileprivate let rwlock: UnsafeMutablePointer<pthread_rwlock_t> =
    |                                                  `- error: cannot find type 'pthread_rwlock_t' in scope
195 |         UnsafeMutablePointer.allocate(capacity: 1)
196 |     #endif
[7/9] Compiling CoreMetrics Locks.swift
/host/spi-builder-workspace/.build/checkouts/swift-metrics/Sources/CoreMetrics/Locks.swift:48:8: error: The concurrency lock module was unable to identify your C library.
 46 | #endif
 47 | #else
 48 | #error("The concurrency lock module was unable to identify your C library.")
    |        `- error: The concurrency lock module was unable to identify your C library.
 49 | #endif
 50 |
/host/spi-builder-workspace/.build/checkouts/swift-metrics/Sources/CoreMetrics/Locks.swift:194:50: error: cannot find type 'pthread_rwlock_t' in scope
192 |         UnsafeMutablePointer.allocate(capacity: 1)
193 |     #else
194 |     fileprivate let rwlock: UnsafeMutablePointer<pthread_rwlock_t> =
    |                                                  `- error: cannot find type 'pthread_rwlock_t' in scope
195 |         UnsafeMutablePointer.allocate(capacity: 1)
196 |     #endif
BUILD FAILURE 6.2 wasm