Swift Package Index

Build Information

Failed to build flock, reference 0.1.0 (d2d9d5), with Swift 6.3 for macOS (SPM) on 20 Apr 2026 16:29:24 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64

Build 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/naoty/flock.git
Reference: 0.1.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/naoty/flock
 * tag               0.1.0      -> FETCH_HEAD
HEAD is now at d2d9d55 Add Makefile
Cloned https://github.com/naoty/flock.git
Revision (git rev-parse @):
d2d9d55b2ffef1a7587ed5df182f4bedafb7dcc3
SUCCESS checkout https://github.com/naoty/flock.git at 0.1.0
error: 'spi-builder-workspace': package 'package.swift' is using Swift tools version 3.1.0 which is no longer supported; consider using '// swift-tools-version: 6.3' to specify the current tools version
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Build
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Selected platform:         macosSpm
Swift version:             6.3
Building package at path:  $PWD
https://github.com/naoty/flock.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64
error: 'spi-builder-workspace': package 'package.swift' is using Swift tools version 3.1.0 which is no longer supported; consider using '// swift-tools-version: 6.3' to specify the current tools version
error: 'spi-builder-workspace': package 'package.swift' is using Swift tools version 3.1.0 which is no longer supported; consider using '// swift-tools-version: 6.3' to specify the current tools version
BUILD FAILURE 6.3 macosSpm