Swift Package IndexBuild Information
Failed to build swift-nio-udp, reference main (658a46), with Swift 6.2 for Wasm on 10 Feb 2026 20:05:05 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>&1Build Log
========================================
RunAll
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Builder version: 4.68.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/hironichu/swift-nio-udp.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/hironichu/swift-nio-udp
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 658a466 linux optimisation, replaced dual copy operation by passing Data(b ref)
Cloned https://github.com/hironichu/swift-nio-udp.git
Revision (git rev-parse @):
658a46698aa02596d92b0bfda3b42134fd1c5cb4
SUCCESS checkout https://github.com/hironichu/swift-nio-udp.git at main
========================================
Build
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Selected platform: wasm
Swift version: 6.2
Building package at path: $PWD
https://github.com/hironichu/swift-nio-udp.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$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/swift-sdk.json
Fetching https://github.com/apple/swift-nio.git
[1/82001] Fetching swift-nio
Fetched https://github.com/apple/swift-nio.git from cache (5.70s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.94.0 (8.37s)
Fetching https://github.com/apple/swift-collections.git
Fetching https://github.com/apple/swift-atomics.git
Fetching https://github.com/apple/swift-system.git
[1/1820] Fetching swift-atomics
[1821/7372] Fetching swift-atomics, swift-system
[7373/26865] Fetching swift-atomics, swift-system, swift-collections
Fetched https://github.com/apple/swift-atomics.git from cache (0.57s)
[10621/25045] Fetching swift-system, swift-collections
Fetched https://github.com/apple/swift-system.git from cache (0.59s)
[6433/19493] Fetching swift-collections
Fetched https://github.com/apple/swift-collections.git from cache (1.65s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.0 (2.04s)
Computing version for https://github.com/apple/swift-system.git
Computed https://github.com/apple/swift-system.git at 1.6.4 (0.42s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.3.0 (0.53s)
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.3.0
Creating working copy for https://github.com/apple/swift-system.git
Working copy of https://github.com/apple/swift-system.git resolved at 1.6.4
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 2.94.0
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...
[0/21] Write sources
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[13/21] Write sources
[14/21] Compiling CNIOWindows shim.c
[15/21] Compiling _AtomicsShims.c
[16/21] Compiling CNIOWASI CNIOWASI.c
[17/21] Compiling CNIOPosix event_loop_id.c
[18/21] Write swift-version-24593BA9C3E375BF.txt
[19/61] Compiling c-nioatomics.c
[20/61] Compiling c-atomics.c
[22/67] Compiling Atomics AtomicOptionalWrappable.swift
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[26/71] Compiling Atomics ManagedAtomic.swift
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[30/71] Emitting module _NIOBase64
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[52/72] Emitting module InternalCollectionsUtilities
[53/72] Compiling Atomics AtomicStorage.swift
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[61/73] Compiling _NIODataStructures _TinyArray.swift
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[71/74] Compiling NIOConcurrencyHelpers NIOLock.swift
[72/74] Emitting module NIOConcurrencyHelpers
[74/75] Compiling _NIODataStructures Heap.swift
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[93/93] Emitting module DequeModule
[95/157] Compiling NIOCore NIOCoreSendableMetatype.swift
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[97/157] Compiling NIOCore NIOLoopBound.swift
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[147/165] Compiling NIOCore ByteBuffer-multi-int.swift
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[224/230] Compiling NIOUDPTransport UDPError.swift
[225/230] Compiling NIOUDPTransport UDPConfiguration.swift
[226/230] Compiling NIOUDPTransport UDPTransport.swift
[227/230] Compiling NIOUDPTransport NIOUDPTransport+Exports.swift
[228/230] Compiling NIOUDPTransport NIOUDPTransport.swift
/host/spi-builder-workspace/Sources/NIOUDPTransport/NIOUDPTransport.swift:95:35: error: cannot find 'MultiThreadedEventLoopGroup' in scope
93 | self.ownsEventLoopGroup = false
94 | } else {
95 | self.eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
| `- error: cannot find 'MultiThreadedEventLoopGroup' in scope
96 | self.ownsEventLoopGroup = true
97 | }
/host/spi-builder-workspace/Sources/NIOUDPTransport/NIOUDPTransport.swift:118:28: error: value of type 'any EventLoopGroup' has no member 'shutdownGracefully'
116 |
117 | if ownsEventLoopGroup {
118 | eventLoopGroup.shutdownGracefully { _ in }
| `- error: value of type 'any EventLoopGroup' has no member 'shutdownGracefully'
119 | }
120 | }
/host/spi-builder-workspace/Sources/NIOUDPTransport/NIOUDPTransport.swift:232:39: error: value of type 'any EventLoopGroup' has no member 'shutdownGracefully'
230 |
231 | if ownsEventLoopGroup {
232 | try? await eventLoopGroup.shutdownGracefully()
| `- error: value of type 'any EventLoopGroup' has no member 'shutdownGracefully'
233 | }
234 | }
/host/spi-builder-workspace/Sources/NIOUDPTransport/NIOUDPTransport.swift:442:25: error: cannot find 'DatagramBootstrap' in scope
440 |
441 | private func createChannel() async throws -> any Channel {
442 | var bootstrap = DatagramBootstrap(group: eventLoopGroup)
| `- error: cannot find 'DatagramBootstrap' in scope
443 | .channelOption(
444 | ChannelOptions.socketOption(.so_reuseaddr),
/host/spi-builder-workspace/Sources/NIOUDPTransport/NIOUDPTransport.swift:444:46: error: type 'NIOBSDSocket.Option' has no member 'so_reuseaddr'
442 | var bootstrap = DatagramBootstrap(group: eventLoopGroup)
443 | .channelOption(
444 | ChannelOptions.socketOption(.so_reuseaddr),
| `- error: type 'NIOBSDSocket.Option' has no member 'so_reuseaddr'
445 | value: configuration.reuseAddress ? 1 : 0
446 | )
/host/spi-builder-workspace/Sources/NIOUDPTransport/NIOUDPTransport.swift:451:47: error: cannot infer type of closure parameter 'channel' without a type annotation
449 | value: FixedSizeRecvByteBufferAllocator(capacity: configuration.receiveBufferSize)
450 | )
451 | .channelInitializer { [weak self] channel in
| `- error: cannot infer type of closure parameter 'channel' without a type annotation
452 | channel.pipeline.addHandler(DatagramHandler(transport: self))
453 | }
/host/spi-builder-workspace/Sources/NIOUDPTransport/NIOUDPTransport.swift:457:42: error: type 'NIOBSDSocket.Option' has no member 'so_rcvbuf'
455 | // Apply SO_RCVBUF
456 | bootstrap = bootstrap.channelOption(
457 | ChannelOptions.socketOption(.so_rcvbuf),
| `- error: type 'NIOBSDSocket.Option' has no member 'so_rcvbuf'
458 | value: SocketOptionValue(configuration.receiveBufferSize)
459 | )
/host/spi-builder-workspace/Sources/NIOUDPTransport/NIOUDPTransport.swift:463:42: error: type 'NIOBSDSocket.Option' has no member 'so_sndbuf'
461 | // Apply SO_SNDBUF
462 | bootstrap = bootstrap.channelOption(
463 | ChannelOptions.socketOption(.so_sndbuf),
| `- error: type 'NIOBSDSocket.Option' has no member 'so_sndbuf'
464 | value: SocketOptionValue(configuration.sendBufferSize)
465 | )
[229/230] Emitting module NIOUDPTransport
[230/230] Compiling NIOUDPTransport AddressHelpers.swift
BUILD FAILURE 6.2 wasm