Swift Package Index

Build Information

Failed to build swift-rfc-5321, reference main (8fcfff), with Swift 6.3 for macOS (SPM) on 3 Oct 2026 09:10:00 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.5.0.app xcrun swift build --arch arm64

Build Log

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RunAll
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Builder version: 5.1.1
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/swift-ietf/swift-rfc-5321.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/swift-ietf/swift-rfc-5321
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 8fcfffe Add exact SMTP length and trailing-dot boundary tests
Cloned https://github.com/swift-ietf/swift-rfc-5321.git
Revision (git rev-parse @):
8fcfffe318131fd5d1d941d08f73e1d1ceb60a2e
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/swift-ietf/swift-rfc-5321.git at main
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.3.2
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Build
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Selected platform:         macosSpm
Swift version:             6.3
Building package at path:  $PWD
https://github.com/swift-ietf/swift-rfc-5321.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