Build Information
Failed to build swift-iso-9899, reference main (5b1516), with Swift 6.2 for macOS (SPM) on 3 Oct 2026 00:47:02 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-26.3.0.app xcrun swift build --arch arm64Build Log
========================================
RunAll
========================================
Builder version: 5.1.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swift-iso/swift-iso-9899.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/swift-iso/swift-iso-9899
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 5b1516e Spell the Error module's type with a module selector
Cloned https://github.com/swift-iso/swift-iso-9899.git
Revision (git rev-parse @):
5b1516eacc1f320c5a6437c124cc47ad0d17f888
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/swift-iso/swift-iso-9899.git at main
========================================
Build
========================================
Selected platform: macosSpm
Swift version: 6.2
Building package at path: $PWD
https://github.com/swift-iso/swift-iso-9899.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.3.0.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 6.2.4
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.2.4
BUILD FAILURE 6.2 macosSpm