Build Information
Failed to build FlyingFox, reference main (05b6b6), with Swift 6.3 for Wasm on 28 Apr 2026 13:00:16 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/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/swhitty/FlyingFox.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/swhitty/FlyingFox
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 05b6b66 Merge pull request #212 from ianegordon/ian/tvt-290-filehttphandler-loads-whole-file-into-memory-to-compute-etag
Cloned https://github.com/swhitty/FlyingFox.git
Revision (git rev-parse @):
05b6b669625a9bde4516bc073f550945966c4d0f
SUCCESS checkout https://github.com/swhitty/FlyingFox.git at main
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/swhitty/FlyingFox.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$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
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/29] Emitting module FlyingSocks
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[5/32] Compiling FlyingSocks Mutex.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[6/32] Compiling FlyingSocks Socket+Android.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[7/32] Compiling FlyingSocks Socket+Darwin.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[8/32] Compiling FlyingSocks Socket+Glibc.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[9/32] Compiling FlyingSocks ConsumingAsyncSequence.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[10/32] Compiling FlyingSocks IdentifiableContinuation.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[11/32] Compiling FlyingSocks Logging+OSLog.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[12/32] Compiling FlyingSocks Logging.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[13/32] Compiling FlyingSocks Socket+Musl.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[14/32] Compiling FlyingSocks Socket+WinSock2.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[15/32] Compiling FlyingSocks Socket.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[16/32] Compiling FlyingSocks AsyncBufferedSequence.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[17/32] Compiling FlyingSocks AsyncChunkedSequence.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[18/32] Compiling FlyingSocks AsyncSharedReplaySequence.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[19/32] Compiling FlyingSocks AsyncSocket.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[20/32] Compiling FlyingSocks SwiftSupport.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[21/32] Compiling FlyingSocks Task+Timeout.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[22/32] Compiling FlyingSocks Transferring.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[23/32] Compiling FlyingSocks AsyncBufferedCollection.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[24/32] Compiling FlyingSocks AsyncBufferedEmptySequence.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[25/32] Compiling FlyingSocks AsyncBufferedPrefixSequence.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[26/32] Compiling FlyingSocks AsyncBufferedSequence+Extensions.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[27/32] Compiling FlyingSocks SocketPool+ePoll.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[28/32] Compiling FlyingSocks SocketPool+kQueue.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[29/32] Compiling FlyingSocks SocketPool.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[30/32] Compiling FlyingSocks SocketAddress.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[31/32] Compiling FlyingSocks SocketError.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
[32/32] Compiling FlyingSocks SocketPool+Poll.swift
/host/spi-builder-workspace/FlyingSocks/Sources/SocketPool.swift:32:8: error: no such module 'Dispatch'
30 | //
31 |
32 | import Dispatch
| `- error: no such module 'Dispatch'
33 | #if canImport(FoundationEssentials)
34 | import FoundationEssentials
BUILD FAILURE 6.3 wasm