Build Information
Failed to build wren-swift, reference develop (3b47fa), with Swift 6.3 for Linux on 13 Apr 2026 03:43:47 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:basic-6.3-latest swift build --triple x86_64-unknown-linux-gnu 2>&1Build Log
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RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/helje5/wren-swift.git
Reference: develop
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/helje5/wren-swift
* branch develop -> FETCH_HEAD
* [new branch] develop -> origin/develop
HEAD is now at 3b47faa Update README.md
Cloned https://github.com/helje5/wren-swift.git
Revision (git rev-parse @):
3b47faaaf46c95ba551113d9ef49f483081354b3
SUCCESS checkout https://github.com/helje5/wren-swift.git at develop
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Build
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Selected platform: linux
Swift version: 6.3
Building package at path: $PWD
https://github.com/helje5/wren-swift.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:basic-6.3-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:5a7d791d2ead8a924b1292cb31bf3288eabcfe8880e0b005b00b45b71a5bc36a
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:basic-6.3-latest
Building for debugging...
[0/3] Write sources
[1/3] Write swift-version-24593BA9C3E375BF.txt
[2/3] Compiling CWren wren.c
[4/13] Emitting module Wren
[5/13] Compiling Wren Callbacks.swift
/host/spi-builder-workspace/Sources/Wren/Callbacks.swift:27:15: error: cannot find 'strlen' in scope
25 | let data : Data = {
26 | guard let text = text else { return Data() }
27 | let len = strlen(text) // yes, this one is 0-terminated
| `- error: cannot find 'strlen' in scope
28 | let bp = UnsafeBufferPointer(start: text, count: len)
29 | return Data(buffer: bp)
[6/13] Compiling Wren Configuration.swift
/host/spi-builder-workspace/Sources/Wren/Callbacks.swift:27:15: error: cannot find 'strlen' in scope
25 | let data : Data = {
26 | guard let text = text else { return Data() }
27 | let len = strlen(text) // yes, this one is 0-terminated
| `- error: cannot find 'strlen' in scope
28 | let bp = UnsafeBufferPointer(start: text, count: len)
29 | return Data(buffer: bp)
[7/14] Compiling Wren ValueConvertible.swift
[8/14] Compiling Wren Values.swift
[9/14] Compiling Wren Handle.swift
[10/14] Compiling Wren Foreign.swift
[11/14] Compiling Wren Slots.swift
[12/14] Compiling Wren Dynamic.swift
[13/14] Compiling Wren Error.swift
[14/14] Compiling Wren WrenVM.swift
BUILD FAILURE 6.3 linux