Swift Package IndexBuild Information
Failed to build stomp-nio, reference 0.0.6 (ef90d7), with Swift 6.3 for Wasm on 29 Apr 2026 10:48:41 UTC.
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-6.3-latest swift build --swift-sdk swift-6.3-RELEASE_wasm 2>&1Build Log
========================================
RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/fpseverino/stomp-nio.git
Reference: 0.0.6
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
* tag 0.0.6 -> FETCH_HEAD
HEAD is now at ef90d74 Subscription connection manager (#27)
Cloned https://github.com/fpseverino/stomp-nio.git
Revision (git rev-parse @):
ef90d742b6437ac407b945f9e9825c07ab733e8d
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/fpseverino/stomp-nio.git at 0.0.6
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/fpseverino/stomp-nio.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-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-nio-ssl.git
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Computing version for https://github.com/apple/swift-atomics.git
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Computing version for https://github.com/apple/swift-collections.git
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Computing version for https://github.com/apple/swift-async-algorithms.git
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Computing version for https://github.com/apple/swift-system
Computed https://github.com/apple/swift-system at 1.6.4 (0.44s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.99.0 (0.73s)
Creating working copy for https://github.com/apple/swift-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.12.0
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Working copy of https://github.com/apple/swift-collections.git resolved at 1.4.1
Creating working copy for https://github.com/apple/swift-async-algorithms.git
Working copy of https://github.com/apple/swift-async-algorithms.git resolved at 1.1.3
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/swift-server/swift-service-lifecycle.git
Working copy of https://github.com/swift-server/swift-service-lifecycle.git resolved at 2.11.0
Building for debugging...
[0/42] Write sources
[23/42] Compiling CNIOWASI CNIOWASI.c
[24/42] Compiling CNIOWindows WSAStartup.c
[25/42] Compiling CSystem shims.c
[26/42] Write swift-version-24593BA9C3E375BF.txt
[27/42] Compiling CNIOPosix event_loop_id.c
[27/42] Compiling CNIOWindows shim.c
[27/42] Compiling _AtomicsShims.c
[30/42] Compiling CNIOOpenBSD shim.c
[31/42] Compiling CNIOLinux shim.c
[31/42] Compiling CNIOLinux liburing_shims.c
[33/44] Compiling CNIOSHA1 c_nio_sha1.c
[34/68] Compiling CNIOLLHTTP c_nio_http.c
[35/89] Compiling CNIOLLHTTP c_nio_api.c
[36/106] Compiling CNIODarwin shim.c
[38/106] Emitting module _NIOBase64
[39/106] Emitting module InternalCollectionsUtilities
[40/108] Emitting module SystemPackage
[40/112] Compiling CNIOLLHTTP c_nio_llhttp.c
[41/112] Compiling c-nioatomics.c
[42/112] Write sources
[45/130] Compiling Atomics UnsafeAtomic.swift
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[130/226] Compiling ContainersPreview DynamicContainer.swift
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[132/226] Compiling ContainersPreview PermutableContainer.swift
[133/231] Emitting module ContainersPreview
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[136/233] Compiling ContainersPreview InputSpan.swift
[137/233] Compiling ContainersPreview Shared.swift
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[155/234] Emitting module _NIODataStructures
[156/234] Compiling _NIODataStructures Heap.swift
[162/235] Compiling Logging MetadataProvider.swift
[163/236] Compiling Logging Locks.swift
[164/236] Emitting module Logging
[165/236] Emitting module Atomics
[168/236] Emitting module ConcurrencyHelpers
[169/236] Compiling ConcurrencyHelpers Lock.swift
[170/237] Compiling NIOConcurrencyHelpers lock.swift
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[184/292] Compiling NIOConcurrencyHelpers NIOThreadPoolWorkAvailable.swift
[185/292] Compiling NIOConcurrencyHelpers NIOLockedValueBox.swift
[186/292] Compiling NIOConcurrencyHelpers atomics.swift
[187/292] Emitting module UnixSignals
[188/292] Compiling NIOConcurrencyHelpers NIOLock.swift
[189/292] Compiling NIOConcurrencyHelpers NIOAtomic.swift
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[205/292] Emitting module NIOConcurrencyHelpers
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[207/293] Compiling DequeModule Deque._Storage.swift
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[223/295] Compiling DequeModule _DequeBuffer.swift
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[256/296] Compiling DequeModule UniqueDeque.swift
[257/296] Compiling DequeModule _DequeSlot.swift
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[259/296] Compiling DequeModule _UnsafeDequeSegments.swift
[260/296] Compiling OrderedCollections OrderedDictionary+Sendable.swift
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[262/296] Compiling OrderedCollections OrderedDictionary+Values.swift
[263/296] Compiling DequeModule Deque+Codable.swift
[264/296] Compiling DequeModule Deque+Collection.swift
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[283/296] Emitting module OrderedCollections
[284/296] Compiling OrderedCollections OrderedSet+Sendable.swift
[285/296] Compiling OrderedCollections OrderedSet+SubSequence.swift
[286/296] Compiling OrderedCollections OrderedSet+Testing.swift
[287/296] Compiling OrderedCollections OrderedSet+UnorderedView.swift
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[289/296] Compiling OrderedCollections OrderedSet.swift
[290/296] Compiling OrderedCollections _UnsafeBitset.swift
[292/297] Emitting module DequeModule
[299/473] Compiling AsyncAlgorithms AsyncAdjacentPairsSequence.swift
[300/473] Compiling AsyncAlgorithms AsyncBufferedByteIterator.swift
[301/473] Compiling AsyncAlgorithms AsyncChunksOfCountOrSignalSequence.swift
[302/473] Compiling AsyncAlgorithms AsyncChunksOfCountSequence.swift
[303/474] Compiling AsyncAlgorithms AsyncChunkedByGroupSequence.swift
/host/spi-builder-workspace/Sources/STOMPConnectionPool/ConnectionRequest.swift:30:46: warning: cannot 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
28 | public convenience init(
29 | configuration: ConnectionPoolConfiguration,
30 | idGenerator: ConnectionIDGenerator = _STOMPConnectionPool.ConnectionIDGenerator(),
| `- warning: cannot 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
31 | keepAliveBehavior: KeepAliveBehavior,
32 | observabilityDelegate: ObservabilityDelegate,
/host/spi-builder-workspace/Sources/STOMPConnectionPool/ConnectionRequest.swift:33:24: warning: cannot 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
31 | keepAliveBehavior: KeepAliveBehavior,
32 | observabilityDelegate: ObservabilityDelegate,
33 | clock: Clock = ContinuousClock(),
| `- warning: cannot 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
34 | connectionFactory: @escaping ConnectionFactory
35 | ) {
[304/474] Compiling AsyncAlgorithms AsyncChunkedOnProjectionSequence.swift
/host/spi-builder-workspace/Sources/STOMPConnectionPool/ConnectionRequest.swift:30:46: warning: cannot 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
28 | public convenience init(
29 | configuration: ConnectionPoolConfiguration,
30 | idGenerator: ConnectionIDGenerator = _STOMPConnectionPool.ConnectionIDGenerator(),
| `- warning: cannot 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
31 | keepAliveBehavior: KeepAliveBehavior,
32 | observabilityDelegate: ObservabilityDelegate,
/host/spi-builder-workspace/Sources/STOMPConnectionPool/ConnectionRequest.swift:33:24: warning: cannot 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
31 | keepAliveBehavior: KeepAliveBehavior,
32 | observabilityDelegate: ObservabilityDelegate,
33 | clock: Clock = ContinuousClock(),
| `- warning: cannot 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
34 | connectionFactory: @escaping ConnectionFactory
35 | ) {
[305/474] Compiling AsyncAlgorithms AsyncSyncSequence.swift
/host/spi-builder-workspace/Sources/STOMPConnectionPool/NIOLock.swift:32:8: warning: public import of 'wasi_pthread' was not used in public declarations or inlinable code
30 | public import WASILibc
31 | #if canImport(wasi_pthread)
32 | public import wasi_pthread
| `- warning: public import of 'wasi_pthread' was not used in public declarations or inlinable code
33 | #endif
34 | #else
[306/474] Compiling AsyncAlgorithms AsyncThrottleSequence.swift
/host/spi-builder-workspace/Sources/STOMPConnectionPool/NIOLock.swift:32:8: warning: public import of 'wasi_pthread' was not used in public declarations or inlinable code
30 | public import WASILibc
31 | #if canImport(wasi_pthread)
32 | public import wasi_pthread
| `- warning: public import of 'wasi_pthread' was not used in public declarations or inlinable code
33 | #endif
34 | #else
[307/474] Compiling _STOMPConnectionPool TinyFastSequence.swift
[308/474] Compiling AsyncAlgorithms AsyncThrowingExclusiveReductionsSequence.swift
/host/spi-builder-workspace/Sources/STOMPConnectionPool/PoolStateMachine.swift:845:48: error: cannot find 'pow' in scope
843 |
844 | let start = Double(100_000_000)
845 | let backoffNanosecondsDouble = start * pow(1.25, Double(attempts - 1))
| `- error: cannot find 'pow' in scope
846 |
847 | // Cap to 60s _before_ we convert to Int64, to avoid trapping in the Int64 initializer.
/host/spi-builder-workspace/Sources/STOMPConnectionPool/PoolStateMachine.swift:855:74: error: referencing instance method 'randomElement()' on 'ClosedRange' requires that 'Float16' conform to 'SignedInteger'
853 | let jitterRange = (backoffNanoseconds / 100) * 3
854 | // Pick a random element from the range +/- jitter range.
855 | let jitter: Duration = .nanoseconds((-jitterRange...jitterRange).randomElement()!)
| `- error: referencing instance method 'randomElement()' on 'ClosedRange' requires that 'Float16' conform to 'SignedInteger'
856 | let jitteredBackoff = backoff + jitter
857 | return jitteredBackoff
Swift.ClosedRange:1:11: note: requirement from conditional conformance of 'ClosedRange<Float16>' to 'Collection'
1 | extension ClosedRange : Collection, BidirectionalCollection, RandomAccessCollection where Bound : Strideable, Bound.Stride : SignedInteger {
| `- note: requirement from conditional conformance of 'ClosedRange<Float16>' to 'Collection'
2 | public typealias SubSequence = Slice<ClosedRange<Bound>>
3 | @inlinable public var startIndex: ClosedRange<Bound>.Index { get }
[309/474] Compiling AsyncAlgorithms AsyncThrowingInclusiveReductionsSequence.swift
/host/spi-builder-workspace/Sources/STOMPConnectionPool/PoolStateMachine.swift:845:48: error: cannot find 'pow' in scope
843 |
844 | let start = Double(100_000_000)
845 | let backoffNanosecondsDouble = start * pow(1.25, Double(attempts - 1))
| `- error: cannot find 'pow' in scope
846 |
847 | // Cap to 60s _before_ we convert to Int64, to avoid trapping in the Int64 initializer.
/host/spi-builder-workspace/Sources/STOMPConnectionPool/PoolStateMachine.swift:855:74: error: referencing instance method 'randomElement()' on 'ClosedRange' requires that 'Float16' conform to 'SignedInteger'
853 | let jitterRange = (backoffNanoseconds / 100) * 3
854 | // Pick a random element from the range +/- jitter range.
855 | let jitter: Duration = .nanoseconds((-jitterRange...jitterRange).randomElement()!)
| `- error: referencing instance method 'randomElement()' on 'ClosedRange' requires that 'Float16' conform to 'SignedInteger'
856 | let jitteredBackoff = backoff + jitter
857 | return jitteredBackoff
Swift.ClosedRange:1:11: note: requirement from conditional conformance of 'ClosedRange<Float16>' to 'Collection'
1 | extension ClosedRange : Collection, BidirectionalCollection, RandomAccessCollection where Bound : Strideable, Bound.Stride : SignedInteger {
| `- note: requirement from conditional conformance of 'ClosedRange<Float16>' to 'Collection'
2 | public typealias SubSequence = Slice<ClosedRange<Bound>>
3 | @inlinable public var startIndex: ClosedRange<Bound>.Index { get }
[310/474] Compiling AsyncAlgorithms AsyncChain2Sequence.swift
[311/474] Compiling AsyncAlgorithms AsyncChain3Sequence.swift
[312/474] Emitting module _STOMPConnectionPool
/host/spi-builder-workspace/Sources/STOMPConnectionPool/ConnectionRequest.swift:30:46: warning: cannot 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
28 | public convenience init(
29 | configuration: ConnectionPoolConfiguration,
30 | idGenerator: ConnectionIDGenerator = _STOMPConnectionPool.ConnectionIDGenerator(),
| `- warning: cannot 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
31 | keepAliveBehavior: KeepAliveBehavior,
32 | observabilityDelegate: ObservabilityDelegate,
/host/spi-builder-workspace/Sources/STOMPConnectionPool/ConnectionRequest.swift:33:24: warning: cannot 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
31 | keepAliveBehavior: KeepAliveBehavior,
32 | observabilityDelegate: ObservabilityDelegate,
33 | clock: Clock = ContinuousClock(),
| `- warning: cannot 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
34 | connectionFactory: @escaping ConnectionFactory
35 | ) {
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[331/482] Emitting module Configuration
[332/487] Emitting module AsyncAlgorithms
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[345/494] Compiling Configuration CombineLatestManyStorage.swift
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[347/494] Compiling Configuration FoundationExtensions.swift
BUILD FAILURE 6.3 wasm