Swift Package IndexBuild Information
Failed to build swift-server-engine.io, reference 4.0.0-beta.2 (8e7a16), with Swift 6.2 for Wasm on 6 Apr 2026 02:10:02 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/swiftpackageindex/spi-images:wasm-6.2-latest swift build --swift-sdk wasm32-unknown-wasip1 2>&1Build Log
========================================
RunAll
========================================
Builder version: 4.69.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Dean151/swift-server-engine.io.git
Reference: 4.0.0-beta.2
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-engine.io
* tag 4.0.0-beta.2 -> FETCH_HEAD
HEAD is now at 8e7a16f feat: added volatile operations
Cloned https://github.com/Dean151/swift-server-engine.io.git
Revision (git rev-parse @):
8e7a16f2f9621f0ad2c960b5f800cff7afb68a88
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/Dean151/swift-server-engine.io.git at 4.0.0-beta.2
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.2
Building package at path: $PWD
https://github.com/Dean151/swift-server-engine.io.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.2-latest swift build --swift-sdk wasm32-unknown-wasip1 2>&1
wasm-6.2-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:de1420b02d93a9deec3e168cca69275e06e27da7632503e71651af6daad007b1
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/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
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Building for debugging...
[0/111] Write sources
[21/111] Compiling CSystem shims.c
[22/111] Write sources
[45/111] Compiling CNIOWindows WSAStartup.c
[45/111] Write sources
[47/111] Compiling CNIOWindows shim.c
[48/111] Compiling _CWASI _CWASI.c
[49/111] Write swift-version-24593BA9C3E375BF.txt
[50/111] Compiling CNIOWASI CNIOWASI.c
[51/111] Compiling _AtomicsShims.c
[52/111] Compiling CNIOLinux shim.c
[53/111] Compiling CNIOOpenBSD shim.c
[54/111] Compiling CNIOPosix event_loop_id.c
[55/115] Compiling CNIOSHA1 c_nio_sha1.c
[56/115] Compiling CNIOLLHTTP c_nio_api.c
error: emit-module command failed with exit code 1 (use -v to see invocation)
[58/116] Emitting module _NIODataStructures
<unknown>:0: error: module compiled with Swift 6.2 cannot be imported by the Swift 6.2.4 compiler: /root/.swiftpm/swift-sdks/swift-6.2-RELEASE_wasm.artifactbundle/swift-6.2-RELEASE_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static/wasi/Swift.swiftmodule/wasm32-unknown-wasip1.swiftmodule
[59/131] Compiling _NIODataStructures _TinyArray.swift
<unknown>:0: error: module compiled with Swift 6.2 cannot be imported by the Swift 6.2.4 compiler: /root/.swiftpm/swift-sdks/swift-6.2-RELEASE_wasm.artifactbundle/swift-6.2-RELEASE_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static/wasi/Swift.swiftmodule/wasm32-unknown-wasip1.swiftmodule
[60/135] Compiling _NIODataStructures Heap.swift
<unknown>:0: error: module compiled with Swift 6.2 cannot be imported by the Swift 6.2.4 compiler: /root/.swiftpm/swift-sdks/swift-6.2-RELEASE_wasm.artifactbundle/swift-6.2-RELEASE_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static/wasi/Swift.swiftmodule/wasm32-unknown-wasip1.swiftmodule
[61/135] Compiling _NIODataStructures PriorityQueue.swift
<unknown>:0: error: module compiled with Swift 6.2 cannot be imported by the Swift 6.2.4 compiler: /root/.swiftpm/swift-sdks/swift-6.2-RELEASE_wasm.artifactbundle/swift-6.2-RELEASE_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static/wasi/Swift.swiftmodule/wasm32-unknown-wasip1.swiftmodule
error: emit-module command failed with exit code 1 (use -v to see invocation)
[62/145] Emitting module _NIOBase64
<unknown>:0: error: module compiled with Swift 6.2 cannot be imported by the Swift 6.2.4 compiler: /root/.swiftpm/swift-sdks/swift-6.2-RELEASE_wasm.artifactbundle/swift-6.2-RELEASE_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static/wasi/Swift.swiftmodule/wasm32-unknown-wasip1.swiftmodule
<unknown>:0: error: module compiled with Swift 6.2 cannot be imported by the Swift 6.2.4 compiler: /root/.swiftpm/swift-sdks/swift-6.2-RELEASE_wasm.artifactbundle/swift-6.2-RELEASE_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static/wasi/Swift.swiftmodule/wasm32-unknown-wasip1.swiftmodule
[62/155] Compiling c-atomics.c
BUILD FAILURE 6.2 wasm