Swift Package Index

Build Information

Failed to build swift-play-experimental, reference main (187e8e), with Swift 6.4 for macOS (SPM) on 25 Sep 2026 18:41:21 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
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Builder version: 5.1.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/apple/swift-play-experimental.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/apple/swift-play-experimental
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 187e8ed Remove "legacy" test content discovery path. (#8)
Cloned https://github.com/apple/swift-play-experimental.git
Revision (git rev-parse @):
187e8ed7f98cb58f3c882341252f1963a6e08769
SUCCESS checkout https://github.com/apple/swift-play-experimental.git at main
========================================
Build
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Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/apple/swift-play-experimental.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Fetching https://github.com/swiftlang/swift-testing.git
[1/43699] Fetching swift-testing
Fetched https://github.com/swiftlang/swift-testing.git (11.23s)
Fetching https://github.com/swiftlang/swift-syntax.git
Fetching https://github.com/apple/swift-argument-parser.git
[1/18944] Fetching swift-argument-parser
[17051/99012] Fetching swift-argument-parser, swift-syntax
Fetched https://github.com/apple/swift-argument-parser.git (2.18s)
[4004/80068] Fetching swift-syntax
Fetched https://github.com/swiftlang/swift-syntax.git (5.78s)
Computing version for https://github.com/apple/swift-argument-parser.git
Computed https://github.com/apple/swift-argument-parser.git at 1.8.2 (6.42s)
Computing version for https://github.com/swiftlang/swift-syntax.git
error: Dependencies could not be resolved because 'swift-testing' depends on 'swift-syntax' 605.0.0-latest..<606.0.0.
'swift-syntax' 604.0.0-latest..<605.0.0-latest is required because no versions of 'swift-syntax' match the requirement 605.0.0-latest..<605.0.0 and root depends on 'swift-syntax' 604.0.0-latest..<605.0.0.
BUILD FAILURE 6.4 macosSpm