Build Information
Failed to build swift-server-socket.io, reference 5.0.0-beta.1 (0e864e), with Swift 6.3 for Wasm on 10 Apr 2026 22:05:28 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/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
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Dean151/swift-server-socket.io.git
Reference: 5.0.0-beta.1
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/Dean151/swift-server-socket.io
* tag 5.0.0-beta.1 -> FETCH_HEAD
HEAD is now at 0e864e1 feat: initial commit
Cloned https://github.com/Dean151/swift-server-socket.io.git
Revision (git rev-parse @):
0e864e1d1807ee20bd4c4a0d0ee1fa3f1242d4b2
SUCCESS checkout https://github.com/Dean151/swift-server-socket.io.git at 5.0.0-beta.1
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/Dean151/swift-server-socket.io.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/host -w "$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/hummingbird-project/hummingbird-websocket.git
Fetching https://github.com/swhitty/swift-mutex.git
Fetching https://github.com/apple/swift-http-types.git
Fetching https://github.com/swift-server/swift-service-lifecycle.git
Fetching https://github.com/apple/swift-nio.git
[1/324] Fetching swift-mutex
[325/1337] Fetching swift-mutex, swift-http-types
[964/4594] Fetching swift-mutex, swift-http-types, hummingbird-websocket
[2967/7313] Fetching swift-mutex, swift-http-types, hummingbird-websocket, swift-service-lifecycle
Fetched https://github.com/swhitty/swift-mutex.git from cache (0.25s)
[5113/6989] Fetching swift-http-types, hummingbird-websocket, swift-service-lifecycle
Fetching https://github.com/swift-server/RediStack.git
Fetching https://github.com/hummingbird-project/hummingbird.git
Fetched https://github.com/hummingbird-project/hummingbird-websocket.git from cache (0.34s)
Fetching https://github.com/Dean151/swift-server-engine.io
Fetched https://github.com/swift-server/swift-service-lifecycle.git from cache (0.35s)
Fetched https://github.com/apple/swift-http-types.git from cache (0.35s)
Fetching https://github.com/apple/swift-log.git
[1/58] Fetching swift-server-engine.io
[59/4856] Fetching swift-server-engine.io, redistack
[2506/87957] Fetching swift-server-engine.io, redistack, swift-nio
Fetched https://github.com/Dean151/swift-server-engine.io from cache (0.28s)
[4032/87899] Fetching redistack, swift-nio
[4800/94420] Fetching redistack, swift-nio, swift-log
[8093/120861] Fetching redistack, swift-nio, swift-log, hummingbird
Fetched https://github.com/swift-server/RediStack.git from cache (0.51s)
[10009/116063] Fetching swift-nio, swift-log, hummingbird
Fetched https://github.com/apple/swift-log.git from cache (0.68s)
[13298/109542] Fetching swift-nio, hummingbird
Fetched https://github.com/hummingbird-project/hummingbird.git from cache (1.71s)
[36565/83101] Fetching swift-nio
Fetched https://github.com/apple/swift-nio.git from cache (7.86s)
Computing version for https://github.com/swhitty/swift-mutex.git
Computed https://github.com/swhitty/swift-mutex.git at 0.0.6 (8.25s)
Computing version for https://github.com/apple/swift-http-types.git
Computed https://github.com/apple/swift-http-types.git at 1.5.1 (1.73s)
Computing version for https://github.com/hummingbird-project/hummingbird-websocket.git
Computed https://github.com/hummingbird-project/hummingbird-websocket.git at 2.6.0 (0.46s)
Fetching https://github.com/apple/swift-nio-extras.git
Fetching https://github.com/hummingbird-project/swift-websocket.git
[1/841] Fetching swift-websocket
[842/7351] Fetching swift-websocket, swift-nio-extras
Fetched https://github.com/hummingbird-project/swift-websocket.git from cache (0.28s)
[2344/6510] Fetching swift-nio-extras
Fetched https://github.com/apple/swift-nio-extras.git from cache (0.47s)
Computing version for https://github.com/hummingbird-project/swift-websocket.git
Computed https://github.com/hummingbird-project/swift-websocket.git at 1.5.0 (0.88s)
Fetching https://github.com/adam-fowler/compress-nio.git
Fetching https://github.com/apple/swift-nio-transport-services.git
Fetching https://github.com/apple/swift-nio-ssl.git
[1/2843] Fetching swift-nio-transport-services
[2844/3486] Fetching swift-nio-transport-services, compress-nio
[3487/18904] Fetching swift-nio-transport-services, compress-nio, swift-nio-ssl
Fetched https://github.com/apple/swift-nio-transport-services.git from cache (0.94s)
[4344/16061] Fetching compress-nio, swift-nio-ssl
Fetched https://github.com/adam-fowler/compress-nio.git from cache (2.27s)
Fetched https://github.com/apple/swift-nio-ssl.git from cache (2.30s)
Computing version for https://github.com/apple/swift-nio-extras.git
Computed https://github.com/apple/swift-nio-extras.git at 1.33.0 (3.07s)
Fetching https://github.com/apple/swift-http-structured-headers.git
Fetching https://github.com/apple/swift-certificates.git
Fetching https://github.com/apple/swift-atomics.git
Fetching https://github.com/apple/swift-asn1.git
Fetching https://github.com/apple/swift-algorithms.git
Fetching https://github.com/apple/swift-async-algorithms.git
[1/1242] Fetching swift-http-structured-headers
[1243/3038] Fetching swift-http-structured-headers, swift-asn1
[1998/4858] Fetching swift-http-structured-headers, swift-asn1, swift-atomics
[2089/12003] Fetching swift-http-structured-headers, swift-asn1, swift-atomics, swift-certificates
[3743/18227] Fetching swift-http-structured-headers, swift-asn1, swift-atomics, swift-certificates, swift-async-algorithms
[7754/24285] Fetching swift-http-structured-headers, swift-asn1, swift-atomics, swift-certificates, swift-async-algorithms, swift-algorithms
Fetched https://github.com/apple/swift-http-structured-headers.git from cache (0.42s)
[18401/23043] Fetching swift-asn1, swift-atomics, swift-certificates, swift-async-algorithms, swift-algorithms
Fetching https://github.com/apple/swift-nio-http2.git
Fetched https://github.com/apple/swift-certificates.git from cache (0.68s)
Fetched https://github.com/apple/swift-asn1.git from cache (0.70s)
Fetched https://github.com/apple/swift-async-algorithms.git from cache (0.70s)
Fetched https://github.com/apple/swift-atomics.git from cache (0.70s)
Fetched https://github.com/apple/swift-algorithms.git from cache (0.70s)
[1/12102] Fetching swift-nio-http2
Fetched https://github.com/apple/swift-nio-http2.git from cache (1.78s)
Computing version for https://github.com/apple/swift-algorithms.git
Computed https://github.com/apple/swift-algorithms.git at 1.2.1 (4.88s)
Fetching https://github.com/apple/swift-numerics.git
[1/6416] Fetching swift-numerics
Fetched https://github.com/apple/swift-numerics.git from cache (0.57s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.0 (1.08s)
Computing version for https://github.com/adam-fowler/compress-nio.git
Computed https://github.com/adam-fowler/compress-nio.git at 1.4.2 (0.46s)
Computing version for https://github.com/apple/swift-nio-ssl.git
Computed https://github.com/apple/swift-nio-ssl.git at 2.36.1 (0.78s)
Computing version for https://github.com/swift-server/swift-service-lifecycle.git
Computed https://github.com/swift-server/swift-service-lifecycle.git at 2.11.0 (0.69s)
Computing version for https://github.com/apple/swift-async-algorithms.git
Computed https://github.com/apple/swift-async-algorithms.git at 1.1.3 (0.49s)
Fetching https://github.com/apple/swift-collections.git
[1/23525] Fetching swift-collections
Fetched https://github.com/apple/swift-collections.git from cache (1.47s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.97.1 (2.33s)
Fetching https://github.com/apple/swift-system.git
[1/5601] Fetching swift-system
Fetched https://github.com/apple/swift-system.git from cache (0.69s)
Computing version for https://github.com/apple/swift-asn1.git
Computed https://github.com/apple/swift-asn1.git at 1.6.0 (3.34s)
Computing version for https://github.com/apple/swift-numerics.git
Computed https://github.com/apple/swift-numerics.git at 1.1.1 (0.52s)
Computing version for https://github.com/swift-server/RediStack.git
Computed https://github.com/swift-server/RediStack.git at 1.6.3 (0.47s)
Fetching https://github.com/apple/swift-metrics.git
[1/3139] Fetching swift-metrics
Fetched https://github.com/apple/swift-metrics.git from cache (0.39s)
Computing version for https://github.com/apple/swift-certificates.git
Computed https://github.com/apple/swift-certificates.git at 1.18.0 (0.93s)
Fetching https://github.com/apple/swift-crypto.git
[1/17331] Fetching swift-crypto
Fetched https://github.com/apple/swift-crypto.git from cache (2.07s)
Computing version for https://github.com/apple/swift-http-structured-headers.git
Computed https://github.com/apple/swift-http-structured-headers.git at 1.6.0 (2.57s)
Computing version for https://github.com/apple/swift-system.git
Computed https://github.com/apple/swift-system.git at 1.6.4 (0.51s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.11.0 (0.44s)
Computing version for https://github.com/apple/swift-nio-transport-services.git
Computed https://github.com/apple/swift-nio-transport-services.git at 1.26.0 (0.54s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.4.1 (0.68s)
Computing version for https://github.com/hummingbird-project/hummingbird.git
Computed https://github.com/hummingbird-project/hummingbird.git at 2.22.0 (0.62s)
Fetching https://github.com/apple/swift-distributed-tracing.git
Fetching https://github.com/apple/swift-configuration.git
Fetching https://github.com/swift-server/async-http-client.git
[1/3178] Fetching swift-configuration
[1527/8905] Fetching swift-configuration, swift-distributed-tracing
[8906/24591] Fetching swift-configuration, swift-distributed-tracing, async-http-client
Fetched https://github.com/apple/swift-configuration.git from cache (1.06s)
Fetched https://github.com/apple/swift-distributed-tracing.git from cache (1.06s)
Fetched https://github.com/swift-server/async-http-client.git from cache (1.07s)
Computing version for https://github.com/apple/swift-configuration.git
Computed https://github.com/apple/swift-configuration.git at 1.2.0 (1.78s)
Computing version for https://github.com/apple/swift-distributed-tracing.git
Computed https://github.com/apple/swift-distributed-tracing.git at 1.4.1 (0.72s)
Fetching https://github.com/apple/swift-service-context.git
[1/1236] Fetching swift-service-context
Fetched https://github.com/apple/swift-service-context.git from cache (0.76s)
Computing version for https://github.com/apple/swift-service-context.git
Computed https://github.com/apple/swift-service-context.git at 1.3.0 (1.19s)
Computing version for https://github.com/apple/swift-nio-http2.git
Computed https://github.com/apple/swift-nio-http2.git at 1.42.0 (0.46s)
Computing version for https://github.com/apple/swift-metrics.git
Computed https://github.com/apple/swift-metrics.git at 2.8.0 (0.49s)
Computing version for https://github.com/swift-server/async-http-client.git
Computed https://github.com/swift-server/async-http-client.git at 1.33.1 (0.53s)
Computing version for https://github.com/apple/swift-crypto.git
Computed https://github.com/apple/swift-crypto.git at 4.3.1 (0.89s)
Computing version for https://github.com/Dean151/swift-server-engine.io
Computed https://github.com/Dean151/swift-server-engine.io at 4.0.0-beta.2 (0.44s)
Fetching https://github.com/hummingbird-project/hummingbird-compression.git
[1/1095] Fetching hummingbird-compression
Fetched https://github.com/hummingbird-project/hummingbird-compression.git from cache (0.26s)
Computing version for https://github.com/hummingbird-project/hummingbird-compression.git
Computed https://github.com/hummingbird-project/hummingbird-compression.git at 2.0.0 (0.67s)
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-distributed-tracing.git
Working copy of https://github.com/apple/swift-distributed-tracing.git resolved at 1.4.1
Creating working copy for https://github.com/apple/swift-http-structured-headers.git
Working copy of https://github.com/apple/swift-http-structured-headers.git resolved at 1.6.0
Creating working copy for https://github.com/apple/swift-configuration.git
Working copy of https://github.com/apple/swift-configuration.git resolved at 1.2.0
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 2.97.1
Creating working copy for https://github.com/apple/swift-service-context.git
Working copy of https://github.com/apple/swift-service-context.git resolved at 1.3.0
Creating working copy for https://github.com/hummingbird-project/swift-websocket.git
Working copy of https://github.com/hummingbird-project/swift-websocket.git resolved at 1.5.0
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
Creating working copy for https://github.com/swhitty/swift-mutex.git
Working copy of https://github.com/swhitty/swift-mutex.git resolved at 0.0.6
Creating working copy for https://github.com/apple/swift-nio-transport-services.git
Working copy of https://github.com/apple/swift-nio-transport-services.git resolved at 1.26.0
Creating working copy for https://github.com/apple/swift-algorithms.git
Working copy of https://github.com/apple/swift-algorithms.git resolved at 1.2.1
Creating working copy for https://github.com/apple/swift-http-types.git
Working copy of https://github.com/apple/swift-http-types.git resolved at 1.5.1
Creating working copy for https://github.com/swift-server/async-http-client.git
Working copy of https://github.com/swift-server/async-http-client.git resolved at 1.33.1
Creating working copy for https://github.com/adam-fowler/compress-nio.git
Working copy of https://github.com/adam-fowler/compress-nio.git resolved at 1.4.2
Creating working copy for https://github.com/apple/swift-certificates.git
Working copy of https://github.com/apple/swift-certificates.git resolved at 1.18.0
Creating working copy for https://github.com/apple/swift-nio-http2.git
Working copy of https://github.com/apple/swift-nio-http2.git resolved at 1.42.0
Creating working copy for https://github.com/apple/swift-nio-ssl.git
Working copy of https://github.com/apple/swift-nio-ssl.git resolved at 2.36.1
Creating working copy for https://github.com/swift-server/RediStack.git
Working copy of https://github.com/swift-server/RediStack.git resolved at 1.6.3
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
Creating working copy for https://github.com/hummingbird-project/hummingbird.git
Working copy of https://github.com/hummingbird-project/hummingbird.git resolved at 2.22.0
Creating working copy for https://github.com/hummingbird-project/hummingbird-websocket.git
Working copy of https://github.com/hummingbird-project/hummingbird-websocket.git resolved at 2.6.0
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-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.4.1
Creating working copy for https://github.com/Dean151/swift-server-engine.io
Working copy of https://github.com/Dean151/swift-server-engine.io resolved at 4.0.0-beta.2
Creating working copy for https://github.com/apple/swift-asn1.git
Working copy of https://github.com/apple/swift-asn1.git resolved at 1.6.0
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/hummingbird-project/hummingbird-compression.git
Working copy of https://github.com/hummingbird-project/hummingbird-compression.git resolved at 2.0.0
Creating working copy for https://github.com/apple/swift-nio-extras.git
Working copy of https://github.com/apple/swift-nio-extras.git resolved at 1.33.0
Creating working copy for https://github.com/apple/swift-crypto.git
Working copy of https://github.com/apple/swift-crypto.git resolved at 4.3.1
Creating working copy for https://github.com/apple/swift-numerics.git
Working copy of https://github.com/apple/swift-numerics.git resolved at 1.1.1
Creating working copy for https://github.com/apple/swift-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.11.0
Building for debugging...
[0/509] Write sources
[16/509] Compiling _CWASI _CWASI.c
[17/509] Compiling _AtomicsShims.c
[18/509] Write sources
[22/509] Write swift-version-24593BA9C3E375BF.txt
[24/509] Write sources
[27/515] Emitting module _NIOBase64
[27/515] Write sources
error: emit-module command failed with exit code 1 (use -v to see invocation)
[37/528] Emitting module Mutex
/host/spi-builder-workspace/.build/checkouts/swift-mutex/Sources/AllocatedLock.swift:37:18: error: cannot find type 'Storage' in scope
35 |
36 | @usableFromInline
37 | let storage: Storage
| `- error: cannot find type 'Storage' in scope
38 |
39 | public init(uncheckedState initialState: State) {
/host/spi-builder-workspace/.build/checkouts/swift-mutex/Sources/Mutex.swift:44:18: error: cannot find type 'Storage' in scope
42 | @available(visionOS, deprecated: 15.0, message: "use Mutex from Synchronization module")
43 | public struct Mutex<Value: ~Copyable>: ~Copyable {
44 | let storage: Storage<Value>
| `- error: cannot find type 'Storage' in scope
45 |
46 | public init(_ initialValue: consuming sending Value) {
[37/528] Write sources
[47/558] Emitting module InternalCollectionsUtilities
[48/560] Compiling InternalCollectionsUtilities UnsafeMutableRawBufferPointer+Extras.swift
[49/560] Compiling InternalCollectionsUtilities UnsafeRawBufferPointer+Extras.swift
[50/560] Compiling _NIODataStructures PriorityQueue.swift
[51/560] Compiling _NIODataStructures _TinyArray.swift
[52/560] Compiling InternalCollectionsUtilities Debugging.swift
[53/560] Compiling InternalCollectionsUtilities Descriptions.swift
[54/560] Compiling InternalCollectionsUtilities FixedWidthInteger+roundUpToPowerOfTwo.swift
[55/560] Compiling InternalCollectionsUtilities _SortedCollection.swift
[56/560] Compiling InternalCollectionsUtilities _UniqueCollection.swift
[57/560] Compiling InternalCollectionsUtilities UnsafeBufferPointer+Extras.swift
[58/560] Compiling InternalCollectionsUtilities UnsafeMutableBufferPointer+Extras.swift
[59/560] Compiling ServiceContextModule ServiceContextKey.swift
[60/560] Compiling Mutex AllocatedLock.swift
/host/spi-builder-workspace/.build/checkouts/swift-mutex/Sources/AllocatedLock.swift:37:18: error: cannot find type 'Storage' in scope
35 |
36 | @usableFromInline
37 | let storage: Storage
| `- error: cannot find type 'Storage' in scope
38 |
39 | public init(uncheckedState initialState: State) {
/host/spi-builder-workspace/.build/checkouts/swift-mutex/Sources/AllocatedLock.swift:40:24: error: cannot find 'Storage' in scope
38 |
39 | public init(uncheckedState initialState: State) {
40 | self.storage = Storage(initialState: initialState)
| `- error: cannot find 'Storage' in scope
41 | }
42 |
/host/spi-builder-workspace/.build/checkouts/swift-mutex/Sources/AllocatedLock.swift:44:24: error: cannot find 'Storage' in scope
42 |
43 | public init(initialState: State) where State: Sendable {
44 | self.storage = Storage(initialState: initialState)
| `- error: cannot find 'Storage' in scope
45 | }
46 |
/host/spi-builder-workspace/.build/checkouts/swift-mutex/Sources/AllocatedLock.swift:80:24: error: cannot find 'Storage' in scope
78 |
79 | init() {
80 | self.storage = Storage(initialState: ())
| `- error: cannot find 'Storage' in scope
81 | }
82 |
[61/560] Compiling InternalCollectionsUtilities String+Padding.swift
[62/560] Compiling InternalCollectionsUtilities _UnsafeBitSet+Index.swift
[63/560] Compiling InternalCollectionsUtilities _UnsafeBitSet+_Word.swift
[64/560] Compiling InternalCollectionsUtilities _UnsafeBitSet.swift
[65/560] Compiling InternalCollectionsUtilities Integer rank.swift
[66/560] Compiling InternalCollectionsUtilities UInt+first and last set bit.swift
[67/560] Compiling InternalCollectionsUtilities UInt+reversed.swift
[68/560] Compiling InternalCollectionsUtilities LifetimeOverride.swift
[69/560] Compiling InternalCollectionsUtilities RandomAccessCollection+Offsets.swift
[70/560] Compiling InternalCollectionsUtilities Span+Extras.swift
[71/561] Compiling Mutex Mutex.swift
/host/spi-builder-workspace/.build/checkouts/swift-mutex/Sources/Mutex.swift:44:18: error: cannot find type 'Storage' in scope
42 | @available(visionOS, deprecated: 15.0, message: "use Mutex from Synchronization module")
43 | public struct Mutex<Value: ~Copyable>: ~Copyable {
44 | let storage: Storage<Value>
| `- error: cannot find type 'Storage' in scope
45 |
46 | public init(_ initialValue: consuming sending Value) {
/host/spi-builder-workspace/.build/checkouts/swift-mutex/Sources/Mutex.swift:47:24: error: cannot find 'Storage' in scope
45 |
46 | public init(_ initialValue: consuming sending Value) {
47 | self.storage = Storage(initialValue)
| `- error: cannot find 'Storage' in scope
48 | }
49 |
[72/561] Compiling Mutex MutexSwift5.swift
[73/561] Emitting module _NIODataStructures
[74/561] Compiling _NIOBase64 Base64.swift
error: cancelled
[75/561] Emitting module ServiceContextModule
BUILD FAILURE 6.3 wasm