Build Information
Failed to build swift-css-standard, reference main (f67914), with Swift 6.3 for macOS (SPM) on 14 Oct 2026 19:07:51 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-26.5.0.app xcrun swift build --arch arm64Build Log
========================================
RunAll
========================================
Builder version: 5.1.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swift-standards/swift-css-standard.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/swift-standards/swift-css-standard
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at f679141 Linter: bare string dependency, canonical settings tail, module selector spelling
Cloned https://github.com/swift-standards/swift-css-standard.git
Revision (git rev-parse @):
f679141b8be2694011dbdcde7e10dae656c0f758
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/swift-standards/swift-css-standard.git at main
========================================
Build
========================================
Selected platform: macosSpm
Swift version: 6.3
Building package at path: $PWD
https://github.com/swift-standards/swift-css-standard.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.5.0.app xcrun swift build --arch arm64
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.3.2
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.3.2
BUILD FAILURE 6.3 macosSpm