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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 opus-binary-xcframework, reference main (3060dd), with Swift 6.0 for macOS (SPM) on 16 Sep 2024 03:07:01 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

========================================
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/sbooth/opus-binary-xcframework.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/sbooth/opus-binary-xcframework
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 3060dd9 Update README.md (#3)
Cloned https://github.com/sbooth/opus-binary-xcframework.git
Revision (git rev-parse @):
3060dd9597b51de09a8feba5c91693751b2e2b22
SUCCESS checkout https://github.com/sbooth/opus-binary-xcframework.git at main
========================================
Build
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Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/sbooth/opus-binary-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
[2747/8318671] Downloading https://github.com/sbooth/opus-binary-xcframework/releases/download/0.2.0/opus.xcframework.zip
Downloading binary artifact https://github.com/sbooth/opus-binary-xcframework/releases/download/0.2.0/opus.xcframework.zip
Downloaded https://github.com/sbooth/opus-binary-xcframework/releases/download/0.2.0/opus.xcframework.zip (1.57s)
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