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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 ClassyFlux with Swift 5.10 for macOS (SPM).

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0-Beta.2.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.29.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Cozmonate/ClassyFlux.git
Reference: 2.0.1
Initialized empty Git repository in /Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/.git/
From https://github.com/Cozmonate/ClassyFlux
 * tag               2.0.1      -> FETCH_HEAD
HEAD is now at cb9abff Include all .swift files in pod
Cloned https://github.com/Cozmonate/ClassyFlux.git
Revision (git rev-parse @):
cb9abff2adfdead4396d86090028b2974caf4f52
SUCCESS checkout https://github.com/Cozmonate/ClassyFlux.git at 2.0.1
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.10
Building package at path:  $workDir
https://github.com/Cozmonate/ClassyFlux.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0-Beta.2.app xcrun swift build --arch arm64
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version--423B1241ED78D482.txt
[4/5] Compiling ResolvingContainer ResolvingContainer.swift
[5/5] Emitting module ResolvingContainer
[6/13] Compiling ClassyFlux FluxMiddleware.swift
[7/13] Compiling ClassyFlux FluxWorker.swift
[8/13] Compiling ClassyFlux FluxAction.swift
[9/13] Compiling ClassyFlux FluxAggregator.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[10/13] Emitting module ClassyFlux
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxDispatcher.swift:60:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxDispatcher.swift:63:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:65:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:68:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:71:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:213:23: warning: generic parameter 'State' shadows generic parameter from outer scope with the same name; this is an error in Swift 6
        internal init<State>(for event: Event, from store: FluxStore<State>, queue: OperationQueue, handler: @escaping (State, Set<PartialKeyPath<State>>) -> Void) {
                      ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:56:22: note: 'State' previously declared here
open class FluxStore<State>: FluxWorker {
                     ^
[11/13] Compiling ClassyFlux FluxStore.swift
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:65:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:68:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:71:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:213:23: warning: generic parameter 'State' shadows generic parameter from outer scope with the same name; this is an error in Swift 6
        internal init<State>(for event: Event, from store: FluxStore<State>, queue: OperationQueue, handler: @escaping (State, Set<PartialKeyPath<State>>) -> Void) {
                      ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:56:22: note: 'State' previously declared here
open class FluxStore<State>: FluxWorker {
                     ^
[12/13] Compiling ClassyFlux FluxRepository.swift
[13/13] Compiling ClassyFlux FluxDispatcher.swift
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxDispatcher.swift:60:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxDispatcher.swift:63:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
error: fatalError
Fetching https://github.com/kzlekk/ResolvingContainer.git from cache
Fetched https://github.com/kzlekk/ResolvingContainer.git from cache (0.16s)
Computing version for https://github.com/kzlekk/ResolvingContainer.git
Computed https://github.com/kzlekk/ResolvingContainer.git at 1.0.12 (0.44s)
Creating working copy for https://github.com/kzlekk/ResolvingContainer.git
Working copy of https://github.com/kzlekk/ResolvingContainer.git resolved at 1.0.12
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version--423B1241ED78D482.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[2/4] Emitting module ClassyFlux
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxDispatcher.swift:60:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxDispatcher.swift:63:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:65:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:68:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:71:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:213:23: warning: generic parameter 'State' shadows generic parameter from outer scope with the same name; this is an error in Swift 6
        internal init<State>(for event: Event, from store: FluxStore<State>, queue: OperationQueue, handler: @escaping (State, Set<PartialKeyPath<State>>) -> Void) {
                      ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:56:22: note: 'State' previously declared here
open class FluxStore<State>: FluxWorker {
                     ^
[3/4] Compiling ClassyFlux FluxDispatcher.swift
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxDispatcher.swift:60:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxDispatcher.swift:63:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
[4/4] Compiling ClassyFlux FluxStore.swift
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:65:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:68:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:71:6: error: stored properties cannot be marked potentially unavailable with '@available'
    @available(OSX 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
     ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:213:23: warning: generic parameter 'State' shadows generic parameter from outer scope with the same name; this is an error in Swift 6
        internal init<State>(for event: Event, from store: FluxStore<State>, queue: OperationQueue, handler: @escaping (State, Set<PartialKeyPath<State>>) -> Void) {
                      ^
/Users/builder/builds/UKfvDsi8u/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/ClassyFlux/FluxStore.swift:56:22: note: 'State' previously declared here
open class FluxStore<State>: FluxWorker {
                     ^
error: fatalError
BUILD FAILURE 5.10 macosSpm