Swift Package IndexBuild Information
Failed to build stomp-nio, reference main (0bad69), with Swift 6.4 for Wasm on 2 Oct 2026 20:29:59 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344843-0":/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-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1Build Log
========================================
RunAll
========================================
Builder version: 5.1.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/fpseverino/stomp-nio.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/fpseverino/stomp-nio
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 0bad693 Update connection pool module
Cloned https://github.com/fpseverino/stomp-nio.git
Revision (git rev-parse @):
0bad6932de70577642cf3ffdcc3dfde635c1dcce
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/fpseverino/stomp-nio.git at main
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.4
Building package at path: $PWD
https://github.com/fpseverino/stomp-nio.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:4328fdb43c680d205c1d6761b1e3267aa38277eefdda9ddfb17b6a0f1a77857a
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
Fetching https://github.com/apple/swift-nio-extras.git
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Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.1 (5.37s)
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Computed https://github.com/apple/swift-log.git at 1.15.1 (0.19s)
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Computed https://github.com/apple/swift-configuration.git at 1.2.1 (0.99s)
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Computed https://github.com/swift-server/swift-service-lifecycle.git at 2.12.0 (0.86s)
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Computed https://github.com/apple/swift-nio-ssl.git at 2.37.5 (0.25s)
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Working copy of https://github.com/apple/swift-nio-extras.git resolved at 1.35.1
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Creating working copy for https://github.com/apple/swift-nio-ssl.git
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Building for debugging...
[Computing dependencies]
[Provisioning 3 / 59]
[Pre-planning 1 / 1226]
[Planning 602 / 1226]
[Planning 1219 / 1226]
[Planning deferred tasks]
[Constructing 1738 / 2606]
[33 / 408] ServiceLifecycle
[178 / 408] AsyncAlgorithms
[194 / 421] _AtomicsShims
[199 / 456] SystemPackage
[200 / 464] SystemPackage
[202 / 464] InternalCollectionsUtilities
[225 / 464] NIOConcurrencyHelpers
[227 / 464] SystemPackage
[241 / 464] SystemPackage
[243 / 464] SystemPackage-product
[247 / 465] _NIOBase64
[248 / 465] SystemPackage
[254 / 465] NIOConcurrencyHelpers
[256 / 465] Logging
[257 / 466] _NIODataStructures
[258 / 466] Logging
[262 / 466] _NIODataStructures
[266 / 466] InternalCollectionsUtilities
[267 / 466] InternalCollectionsUtilities
[268 / 466] InternalCollectionsUtilities
[269 / 467] SpanPreview
[274 / 467] InternalCollectionsUtilities
[276 / 468] Logging
[279 / 468] Logging
[283 / 469] Logging
[285 / 469] SystemPackage
[286 / 469] HTTPTypes-product
[288 / 469] HTTPTypes
[288 / 469]
[292 / 473] ConcurrencyHelpers
[304 / 474] CSystem
[310 / 478] ConcurrencyHelpers
[313 / 478] CNIOPosix
[327 / 478] CNIOLLHTTP
[331 / 484] OrderedCollections
[334 / 484] SpanPreview
[337 / 494] SpanPreview
[348 / 505] CNIOAtomics
[349 / 505] SpanPreview
[353 / 505] SpanPreview
[355 / 506] OrderedCollections
[356 / 507] OrderedCollections
[357 / 507] OrderedCollections
[359 / 507] OrderedCollections
[360 / 507] OrderedCollections
[361 / 507] CNIOAtomics
[364 / 507] HTTPTypes
[369 / 507] OrderedCollections
[371 / 507] Atomics
[372 / 507] Atomics
[374 / 507] Atomics
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[380 / 517] DequeModule
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[395 / 518] OrderedCollections
[401 / 518] OrderedCollections
[403 / 518] Atomics
[406 / 519] DequeModule
[406 / 520] DequeModule
[424 / 533] _STOMPConnectionPool
[426 / 552] NIOCore
[428 / 560] AsyncAlgorithms
[429 / 560] _STOMPConnectionPool
/host/spi-builder-workspace/Sources/STOMPConnectionPool/ConnectionRequest.swift:31:46: [1;33mwarning: [1;39mcannot use default expression for inference of 'ConnectionIDGenerator' because it is inferrable from parameters #1, #5; this will be an error in a future Swift language mode[0;0m
[0;36m29 |[0;0m public convenience init(
[0;36m30 |[0;0m configuration: ConnectionPoolConfiguration,
[0;36m31 |[0;0m idGenerator: ConnectionIDGenerator = _STOMPConnectionPool.ConnectionIDGenerator(),
[0;36m|[0;0m `- [1;33mwarning: [1;39mcannot use default expression for inference of 'ConnectionIDGenerator' because it is inferrable from parameters #1, #5; this will be an error in a future Swift language mode[0;0m
[0;36m32 |[0;0m keepAliveBehavior: KeepAliveBehavior,
[0;36m33 |[0;0m observabilityDelegate: ObservabilityDelegate,
/host/spi-builder-workspace/Sources/STOMPConnectionPool/ConnectionRequest.swift:34:24: [1;33mwarning: [1;39mcannot use default expression for inference of 'Clock' because it is inferrable from parameters #4, #5; this will be an error in a future Swift language mode[0;0m
[0;36m32 |[0;0m keepAliveBehavior: KeepAliveBehavior,
[0;36m33 |[0;0m observabilityDelegate: ObservabilityDelegate,
[0;36m34 |[0;0m clock: Clock = ContinuousClock(),
[0;36m|[0;0m `- [1;33mwarning: [1;39mcannot use default expression for inference of 'Clock' because it is inferrable from parameters #4, #5; this will be an error in a future Swift language mode[0;0m
[0;36m35 |[0;0m connectionFactory: @escaping ConnectionFactory
[0;36m36 |[0;0m ) {
/host/spi-builder-workspace/Sources/STOMPConnectionPool/ConnectionRequest.swift:16:9: [1;33mwarning: [1;39msetter for property 'continuation' is private and cannot be referenced from an '@inlinable' function; this will be an error in a future Swift language mode[0;0m
[0;36m6 |[0;0m
[0;36m7 |[0;0m @usableFromInline
[0;36m8 |[0;0m private(set) var continuation: CheckedContinuation<ConnectionLease<Connection>, any Error>
[0;36m|[0;0m `- [1;39mnote: [1;39msetter for property 'continuation' is not '@usableFromInline' or public[0;0m
[0;36m9 |[0;0m
[0;36m10 |[0;0m @inlinable
[0;36m:[0;0m
[0;36m14 |[0;0m ) {
[0;36m15 |[0;0m self.id = id
[0;36m16 |[0;0m self.continuation = continuation
[0;36m|[0;0m `- [1;33mwarning: [1;39msetter for property 'continuation' is private and cannot be referenced from an '@inlinable' function; this will be an error in a future Swift language mode[0;0m
[0;36m17 |[0;0m }
[0;36m18 |[0;0m
[432 / 560] Configuration
error: SwiftCompile normal wasm32 /host/spi-builder-workspace/Sources/STOMPConnectionPool/PoolStateMachine.swift failed with a nonzero exit code. Command line: cd /host
builtin-SwiftPerFileCompile PoolStateMachine.swift
/host/spi-builder-workspace/Sources/STOMPConnectionPool/PoolStateMachine.swift:477:27: [1;33mwarning: [1;39mimmutable value 'context' was never used; consider replacing with '_' or removing it[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/no-usage\NoUsage]8;;\]
[0;36m475 |[0;0m mutating func connectionEstablishFailed(_ error: any Error, for request: ConnectionRequest) -> Action {
[0;36m476 |[0;0m switch self.poolState {
[0;36m477 |[0;0m case .running(let context):
[0;36m|[0;0m `- [1;33mwarning: [1;39mimmutable value 'context' was never used; consider replacing with '_' or removing it[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/no-usage\NoUsage]8;;\]
[0;36m478 |[0;0m self.poolState = .connectionCreationFailing(
[0;36m479 |[0;0m .init(
/host/spi-builder-workspace/Sources/STOMPConnectionPool/PoolStateMachine.swift:1005:48: [1;31merror: [1;39mcannot find 'pow' in scope[0;0m
[0;36m1003 |[0;0m
[0;36m1004 |[0;0m let start = Double(100_000_000)
[0;36m1005 |[0;0m let backoffNanosecondsDouble = start * [4;39mpow[0;0m(1.25, Double(attempts - 1))
[0;36m|[0;0m `- [1;31merror: [1;39mcannot find 'pow' in scope[0;0m
[0;36m1006 |[0;0m
[0;36m1007 |[0;0m // Cap to 60s _before_ we convert to Int64, to avoid trapping in the Int64 initializer.
[#NoUsage]: <https://docs.swift.org/compiler/documentation/diagnostics/no-usage>
Failed frontend command:
/usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/Sources/STOMPConnectionPool/ConnectionIDGenerator.swift /host/spi-builder-workspace/Sources/STOMPConnectionPool/ConnectionLease.swift /host/spi-builder-workspace/Sources/STOMPConnectionPool/ConnectionPool.swift /host/spi-builder-workspace/Sources/STOMPConnectionPool/ConnectionPoolError.swift /host/spi-builder-workspace/Sources/STOMPConnectionPool/ConnectionPoolObservabilityDelegate.swift /host/spi-builder-workspace/Sources/STOMPConnectionPool/ConnectionRequest.swift /host/spi-builder-workspace/Sources/STOMPConnectionPool/Max2Sequence.swift /host/spi-builder-workspace/Sources/STOMPConnectionPool/NIOLock.swift /host/spi-builder-workspace/Sources/STOMPConnectionPool/NIOLockedValueBox.swift /host/spi-builder-workspace/Sources/STOMPConnectionPool/NoKeepAliveBehavior.swift /host/spi-builder-workspace/Sources/STOMPConnectionPool/PoolStateMachine+ConnectionGroup.swift /host/spi-builder-workspace/Sources/STOMPConnectionPool/PoolStateMachine+ConnectionState.swift -primary-file /host/spi-builder-workspace/Sources/STOMPConnectionPool/PoolStateMachine+RequestQueue.swift -primary-file /host/spi-builder-workspace/Sources/STOMPConnectionPool/PoolStateMachine.swift /host/spi-builder-workspace/Sources/STOMPConnectionPool/TinyFastSequence.swift -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/stomp-nio.build/Debug-webassembly-wasm32/_STOMPConnectionPool-t.build/Objects-normal/wasm32/PoolStateMachine+RequestQueue.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/stomp-nio.build/Debug-webassembly-wasm32/_STOMPConnectionPool-t.build/Objects-normal/wasm32/PoolStateMachine+RequestQueue.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/stomp-nio.build/Debug-webassembly-wasm32/_STOMPConnectionPool-t.build/Objects-normal/wasm32/PoolStateMachine+RequestQueue.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/stomp-nio.build/Debug-webassembly-wasm32/_STOMPConnectionPool-t.build/Objects-normal/wasm32/PoolStateMachine+RequestQueue.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/stomp-nio.build/Debug-webassembly-wasm32/_STOMPConnectionPool-t.build/Objects-normal/wasm32/PoolStateMachine.d -emit-const-values-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/stomp-nio.build/Debug-webassembly-wasm32/_STOMPConnectionPool-t.build/Objects-normal/wasm32/PoolStateMachine.swiftconstvalues -emit-reference-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/stomp-nio.build/Debug-webassembly-wasm32/_STOMPConnectionPool-t.build/Objects-normal/wasm32/PoolStateMachine.swiftdeps -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/stomp-nio.build/Debug-webassembly-wasm32/_STOMPConnectionPool-t.build/Objects-normal/wasm32/PoolStateMachine.dia -target wasm32-unknown-wasip1 -disable-objc-interop -sdk /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk -sysroot /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk -I /host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32 -module-cache-path /host/spi-builder-workspace/.build/out/ModuleCache.noindex -color-diagnostics -Xcc -fcolor-diagnostics 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error: Build failed
BUILD FAILURE 6.4 wasm