Swift Package IndexBuild Information
Failed to build swift-slack, reference 0.9.0 (a58343), with Swift 6.2 for Wasm on 2 Apr 2026 06:29:22 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/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-6.2-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/ainame/swift-slack.git
Reference: 0.9.0
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/ainame/swift-slack
* tag 0.9.0 -> FETCH_HEAD
HEAD is now at a583432 Prepare 0.9.0 release notes
Submodule path 'vendor/java-slack-sdk': checked out 'd9e6798b6bd0058ce5f6baa677cd156386b103c2'
Submodule path 'vendor/slack-api-ref': checked out '5c03ea747a29b1df8744056a440c1585b325a105'
Submodule 'vendor/java-slack-sdk' (https://github.com/slackapi/java-slack-sdk.git) registered for path 'vendor/java-slack-sdk'
Submodule 'vendor/slack-api-ref' (https://github.com/slack-ruby/slack-api-ref.git) registered for path 'vendor/slack-api-ref'
Cloning into '/host/spi-builder-workspace/vendor/java-slack-sdk'...
Cloning into '/host/spi-builder-workspace/vendor/slack-api-ref'...
Cloned https://github.com/ainame/swift-slack.git
Revision (git rev-parse @):
a58343273395e250bf11e031efe84704507ea3e2
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/ainame/swift-slack.git at 0.9.0
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.2
Building package at path: $PWD
https://github.com/ainame/swift-slack.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.2-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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[1/1] Compiling plugin SwiftFormatPlugin
[2/2] Compiling plugin Swift-DocC Preview
[3/3] Compiling plugin Swift-DocC
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Building for debugging...
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[69/857] Compiling CNIOSHA1 c_nio_sha1.c
error: emit-module command failed with exit code 1 (use -v to see invocation)
[71/874] 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
error: emit-module command failed with exit code 1 (use -v to see invocation)
[72/878] 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
[73/878] Compiling _NIOBase64 Base64.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
[73/915] Compiling KeccakP-1600-opt64.c
BUILD FAILURE 6.2 wasm