Swift Package Index

Build Information

Failed to build swift-nio, reference 2.99.0 (f71c8d), with Swift 6.0 for macOS (SPM) on 23 Apr 2026 17:42:20 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun swift build --arch arm64

Build Log

========================================
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/apple/swift-nio.git
Reference: 2.99.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/apple/swift-nio
 * tag               2.99.0     -> FETCH_HEAD
HEAD is now at f71c8d2 Move historycal dependency back to NIOFoundationCompat (#3581)
Cloned https://github.com/apple/swift-nio.git
Revision (git rev-parse @):
f71c8d2a5e74a2c6d11a0fbe324774b5d6084237
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/apple/swift-nio.git at 2.99.0
========================================
Build
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Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/apple/swift-nio.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun swift build --arch arm64
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.1.0 but the installed version is 6.0.3
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.1.0 but the installed version is 6.0.3
BUILD FAILURE 6.0 macosSpm