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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 Mqtt with Swift 5.10 for iOS using Xcode 15.4.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0-Beta.2.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$workDir/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $workDir/.derivedData build -scheme Mqtt-Package -destination generic/platform=ios

Build Log

<?xml version="1.0" encoding="UTF-8"?>
<Error><Code>AccessDenied</Code><Message>Access Denied</Message><RequestId>5Y9XPY40DM2EGZZ1</RequestId><HostId>tjz2MCX7VWe0KqhqtslxqMOGFWK+G3GIa0cMNzEDaf5zIeOhhxE9Z4TmNDXxf9Uhq/3C4hmOljkOwPvqYJ9TrCLxPovlWHojPpNRXk/aNvo=</HostId></Error>