Build Information
Successful build of swift-prometheus, reference main (7ec390), with Swift 6.1 for Wasm on 18 Apr 2026 16:17:54 UTC.
Swift 6 data race errors: 0
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/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-6.1-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>&1Build Log
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swift-server/swift-prometheus.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/swift-server/swift-prometheus
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 7ec390b Merge pull request #167 from swift-server/dependabot/github_actions/swiftlang/github-workflows/dot-github/workflows/soundness.yml-0.0.11
Cloned https://github.com/swift-server/swift-prometheus.git
Revision (git rev-parse @):
7ec390bd600ecb577dd5d7d3d71eed651d2c424a
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/swift-server/swift-prometheus.git at main
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.1
Building package at path: $PWD
https://github.com/swift-server/swift-prometheus.git
https://github.com/swift-server/swift-prometheus.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-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 swiftpackageindex/spi-images
Digest: sha256:276d66a16377d3ee059b2e3429cbc1154d9f01e42871e5d702fd5d8b9044d93d
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest
Fetching https://github.com/apple/swift-metrics.git
Fetching https://github.com/apple/swift-atomics.git
[1/3187] Fetching swift-metrics
[384/5007] Fetching swift-metrics, swift-atomics
Fetched https://github.com/apple/swift-atomics.git from cache (0.81s)
Fetched https://github.com/apple/swift-metrics.git from cache (0.81s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.0 (1.57s)
Computing version for https://github.com/apple/swift-metrics.git
Computed https://github.com/apple/swift-metrics.git at 2.10.0 (0.63s)
Creating working copy for https://github.com/apple/swift-metrics.git
Working copy of https://github.com/apple/swift-metrics.git resolved at 2.10.0
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
[6/28] Compiling CoreMetrics WithMetricsFactory.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[7/28] Compiling Atomics AtomicStorage.swift
[8/28] Compiling Atomics AtomicValue.swift
[9/28] Compiling Atomics AtomicMemoryOrderings.swift
[10/28] Compiling Atomics DoubleWord.swift
[11/28] Compiling Atomics ManagedAtomic.swift
[12/28] Compiling Atomics ManagedAtomicLazyReference.swift
[13/30] Compiling Atomics UnsafeAtomic.swift
[14/30] Compiling Atomics UnsafeAtomicLazyReference.swift
[15/30] Compiling Atomics OptionalRawRepresentable.swift
[16/30] Compiling Atomics RawRepresentable.swift
[17/30] Compiling Atomics AtomicBool.swift
[18/30] Compiling CoreMetrics MappingMetricsFactory.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[19/30] Compiling CoreMetrics Metrics.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[20/30] Compiling Atomics IntegerConformances.swift
[21/30] Compiling Atomics PointerConformances.swift
[22/30] Compiling Atomics Primitives.native.swift
[23/30] Emitting module Atomics
[24/30] Compiling Atomics AtomicInteger.swift
[25/30] Compiling Atomics AtomicOptionalWrappable.swift
[26/30] Compiling Atomics AtomicReference.swift
[27/30] Compiling Atomics IntegerOperations.swift
[28/30] Compiling Atomics Unmanaged extensions.swift
[30/31] Compiling CoreMetrics Locks.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[31/31] Emitting module CoreMetrics
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[33/40] Compiling Prometheus MetricDescriptor.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[34/40] Compiling Prometheus Gauge.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[35/40] Compiling Prometheus Counter.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[36/40] Emitting module Prometheus
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[37/40] Compiling Prometheus Histogram.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[38/41] Compiling Prometheus NIOLock.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[39/41] Compiling Prometheus NIOLockedValueBox.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[40/41] Compiling Prometheus PrometheusCollectorRegistry.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[41/41] Compiling Prometheus PrometheusMetricsFactory.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
Build complete! (13.76s)
Build complete.
{
"dependencies" : [
{
"identity" : "swift-atomics",
"requirement" : {
"range" : [
{
"lower_bound" : "1.0.2",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-atomics.git"
},
{
"identity" : "swift-metrics",
"requirement" : {
"range" : [
{
"lower_bound" : "2.4.1",
"upper_bound" : "3.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-metrics.git"
}
],
"manifest_display_name" : "swift-prometheus",
"name" : "swift-prometheus",
"path" : "/host/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "13.0"
},
{
"name" : "ios",
"version" : "16.0"
},
{
"name" : "watchos",
"version" : "9.0"
},
{
"name" : "tvos",
"version" : "16.0"
}
],
"products" : [
{
"name" : "Prometheus",
"targets" : [
"Prometheus"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "PrometheusTests",
"module_type" : "SwiftTarget",
"name" : "PrometheusTests",
"path" : "Tests/PrometheusTests",
"sources" : [
"CounterTests.swift",
"GaugeTests.swift",
"HistogramTests.swift",
"PrometheusCollectorRegistryTests.swift",
"PrometheusMetricsFactoryTests.swift",
"ValidNamesTests.swift"
],
"target_dependencies" : [
"Prometheus"
],
"type" : "test"
},
{
"c99name" : "Prometheus",
"module_type" : "SwiftTarget",
"name" : "Prometheus",
"path" : "Sources/Prometheus",
"product_dependencies" : [
"Atomics",
"CoreMetrics"
],
"product_memberships" : [
"Prometheus"
],
"sources" : [
"Counter.swift",
"Gauge.swift",
"Histogram.swift",
"MetricDescriptor.swift",
"NIOLock.swift",
"NIOLockedValueBox.swift",
"PrometheusCollectorRegistry.swift",
"PrometheusMetricsFactory.swift"
],
"type" : "library"
}
],
"tools_version" : "6.1"
}
wasm-6.1-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:276d66a16377d3ee059b2e3429cbc1154d9f01e42871e5d702fd5d8b9044d93d
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest
Done.