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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Failed to build LAME, reference 3.100.2 (d470be), with Swift 6.0 (beta) for macOS (SPM) on 16 Sep 2024 12:08:03 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.0.0-Release.Candidate.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

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RunAll
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Builder version: 4.53.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/BB9z/LAME-xcframework.git
Reference: 3.100.2
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/BB9z/LAME-xcframework
 * tag               3.100.2    -> FETCH_HEAD
HEAD is now at d470bee 3.100.2
Cloned https://github.com/BB9z/LAME-xcframework.git
Revision (git rev-parse @):
d470bee8093c4c7b9b73c8d85ae760d22dcc1244
SUCCESS checkout https://github.com/BB9z/LAME-xcframework.git at 3.100.2
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Build
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Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/BB9z/LAME-xcframework.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.0.0-Release.Candidate.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
[41313/3873339] Downloading https://github.com/BB9z/LAME-xcframework/releases/download/3.100.2/LAME.xcframework.zip
Downloading binary artifact https://github.com/BB9z/LAME-xcframework/releases/download/3.100.2/LAME.xcframework.zip
Downloaded https://github.com/BB9z/LAME-xcframework/releases/download/3.100.2/LAME.xcframework.zip (1.46s)
error: The package does not contain a buildable target.
Add at least one `.target` or `.executableTarget` to your `Package.swift`.
BUILD FAILURE 6.0 macosSpm