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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 FuturaAsync with Swift 6.0 for macOS (SPM).

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a 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: 4.40.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/kaqu/futuraasync.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/kaqu/futuraasync
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 52a7f9c Result -> Either change
Cloned https://github.com/kaqu/futuraasync.git
Revision (git rev-parse @):
52a7f9c39634d26b53bacc4099786e4001df42cc
SUCCESS checkout https://github.com/kaqu/futuraasync.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/kaqu/futuraasync.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version-6F35C1178C84523A.txt
[4/14] Compiling FuturaFunc PrecedenceGroups.swift
[5/14] Compiling FuturaFunc Operators.swift
[6/15] Compiling FuturaFunc Flip.swift
[7/15] Compiling FuturaFunc Filter.swift
[8/15] Compiling FuturaFunc Curry.swift
[9/15] Compiling FuturaFunc Application.swift
[10/15] Compiling FuturaFunc Composition.swift
[11/15] Emitting module FuturaFunc
[12/15] Compiling FuturaFunc Map.swift
[13/15] Compiling FuturaFunc Either.swift
[14/15] Compiling FuturaFunc Lens.swift
[15/15] Compiling FuturaFunc xxx.swift
[16/27] Compiling FuturaAsync Worker.swift
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/Worker.swift:2:12: warning: var 'mainWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 1 | /// worker using main thread/queue of application
 2 | public var mainWorker: Worker = DispatchQueueWorker.main
   |            |- warning: var 'mainWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'mainWorker' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'mainWorker' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 3 | /// default async worker
 4 | public var asyncWorker: Worker = DispatchQueueWorker.default
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/Worker.swift:4:12: warning: var 'asyncWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 2 | public var mainWorker: Worker = DispatchQueueWorker.main
 3 | /// default async worker
 4 | public var asyncWorker: Worker = DispatchQueueWorker.default
   |            |- warning: var 'asyncWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'asyncWorker' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'asyncWorker' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 5 |
 6 | public var defaultWorker: Worker = asyncWorker
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/Worker.swift:6:12: warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 4 | public var asyncWorker: Worker = DispatchQueueWorker.default
 5 |
 6 | public var defaultWorker: Worker = asyncWorker
   |            |- warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'defaultWorker' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'defaultWorker' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 | public protocol Worker {
[17/27] Compiling FuturaAsync Schedule.swift
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/Worker.swift:6:12: warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 4 | public var asyncWorker: Worker = DispatchQueueWorker.default
 5 |
 6 | public var defaultWorker: Worker = asyncWorker
   |            |- warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'defaultWorker' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'defaultWorker' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 | public protocol Worker {
[18/28] Compiling FuturaAsync Lock.swift
[19/28] Compiling FuturaAsync Promise.swift
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Future/Promise.swift:7:5: warning: 'public' modifier is redundant for initializer declared in a public extension
 5 | public extension Promise {
 6 |
 7 |     public convenience init<T>(using worker: Worker = asyncWorker, withRetriesCount retryCount: UInt = 0, performing task: @escaping () throws -> (T))  where Value == Either<T, Error> {
   |     `- warning: 'public' modifier is redundant for initializer declared in a public extension
 8 |         self.init()
 9 |         var lastError: Error?
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/Worker.swift:4:12: warning: var 'asyncWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 2 | public var mainWorker: Worker = DispatchQueueWorker.main
 3 | /// default async worker
 4 | public var asyncWorker: Worker = DispatchQueueWorker.default
   |            |- warning: var 'asyncWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'asyncWorker' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'asyncWorker' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 5 |
 6 | public var defaultWorker: Worker = asyncWorker
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Future/Promise.swift:19:5: warning: 'public' modifier is redundant for instance method declared in a public extension
17 |     }
18 |
19 |     public func fulfill<T>(with value: T) where Value == Either<T, Error> {
   |     `- warning: 'public' modifier is redundant for instance method declared in a public extension
20 |         future.becomeLeft(with: value)
21 |     }
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Future/Promise.swift:23:5: warning: 'public' modifier is redundant for instance method declared in a public extension
21 |     }
22 |
23 |     public func `break`<T>(with error: Error = PromiseError.cancelled) where Value == Either<T, Error> {
   |     `- warning: 'public' modifier is redundant for instance method declared in a public extension
24 |         future.becomeRight(with: error)
25 |     }
[20/28] Compiling FuturaAsync EitherFuture.swift
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/Worker.swift:6:12: warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 4 | public var asyncWorker: Worker = DispatchQueueWorker.default
 5 |
 6 | public var defaultWorker: Worker = asyncWorker
   |            |- warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'defaultWorker' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'defaultWorker' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 | public protocol Worker {
[21/28] Compiling FuturaAsync FailableFuture.swift
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/Worker.swift:6:12: warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 4 | public var asyncWorker: Worker = DispatchQueueWorker.default
 5 |
 6 | public var defaultWorker: Worker = asyncWorker
   |            |- warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'defaultWorker' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'defaultWorker' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 | public protocol Worker {
[22/28] Compiling FuturaAsync ExecutionContext.swift
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/Worker.swift:6:12: warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 4 | public var asyncWorker: Worker = DispatchQueueWorker.default
 5 |
 6 | public var defaultWorker: Worker = asyncWorker
   |            |- warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'defaultWorker' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'defaultWorker' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 | public protocol Worker {
[23/28] Compiling FuturaAsync Catchable.swift
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/Worker.swift:6:12: warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 4 | public var asyncWorker: Worker = DispatchQueueWorker.default
 5 |
 6 | public var defaultWorker: Worker = asyncWorker
   |            |- warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'defaultWorker' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'defaultWorker' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 | public protocol Worker {
[24/28] Compiling FuturaAsync Delayed.swift
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/Worker.swift:6:12: warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 4 | public var asyncWorker: Worker = DispatchQueueWorker.default
 5 |
 6 | public var defaultWorker: Worker = asyncWorker
   |            |- warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'defaultWorker' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'defaultWorker' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 | public protocol Worker {
[25/28] Compiling FuturaAsync Future+Join.swift
[26/28] Emitting module FuturaAsync
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/Worker.swift:6:12: warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 4 | public var asyncWorker: Worker = DispatchQueueWorker.default
 5 |
 6 | public var defaultWorker: Worker = asyncWorker
   |            |- warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'defaultWorker' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'defaultWorker' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 | public protocol Worker {
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Future/Promise.swift:7:5: warning: 'public' modifier is redundant for initializer declared in a public extension
 5 | public extension Promise {
 6 |
 7 |     public convenience init<T>(using worker: Worker = asyncWorker, withRetriesCount retryCount: UInt = 0, performing task: @escaping () throws -> (T))  where Value == Either<T, Error> {
   |     `- warning: 'public' modifier is redundant for initializer declared in a public extension
 8 |         self.init()
 9 |         var lastError: Error?
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/Worker.swift:4:12: warning: var 'asyncWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 2 | public var mainWorker: Worker = DispatchQueueWorker.main
 3 | /// default async worker
 4 | public var asyncWorker: Worker = DispatchQueueWorker.default
   |            |- warning: var 'asyncWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'asyncWorker' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'asyncWorker' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 5 |
 6 | public var defaultWorker: Worker = asyncWorker
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Future/Promise.swift:19:5: warning: 'public' modifier is redundant for instance method declared in a public extension
17 |     }
18 |
19 |     public func fulfill<T>(with value: T) where Value == Either<T, Error> {
   |     `- warning: 'public' modifier is redundant for instance method declared in a public extension
20 |         future.becomeLeft(with: value)
21 |     }
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Future/Promise.swift:23:5: warning: 'public' modifier is redundant for instance method declared in a public extension
21 |     }
22 |
23 |     public func `break`<T>(with error: Error = PromiseError.cancelled) where Value == Either<T, Error> {
   |     `- warning: 'public' modifier is redundant for instance method declared in a public extension
24 |         future.becomeRight(with: error)
25 |     }
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/Worker.swift:2:12: warning: var 'mainWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 1 | /// worker using main thread/queue of application
 2 | public var mainWorker: Worker = DispatchQueueWorker.main
   |            |- warning: var 'mainWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'mainWorker' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'mainWorker' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 3 | /// default async worker
 4 | public var asyncWorker: Worker = DispatchQueueWorker.default
[27/28] Compiling FuturaAsync Future.swift
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/Worker.swift:6:12: warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 4 | public var asyncWorker: Worker = DispatchQueueWorker.default
 5 |
 6 | public var defaultWorker: Worker = asyncWorker
   |            |- warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'defaultWorker' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'defaultWorker' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 | public protocol Worker {
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Future/Future.swift:16:28: error: cannot find 'expectation' in scope
14 |     deinit {
15 |         #if DEBUG
16 |         guard case .none = expectation else { return }
   |                            `- error: cannot find 'expectation' in scope
17 |         print("WARNING - dealocating not completed future! - \(self)")
18 |         #endif
[28/28] Compiling FuturaAsync DispatchQueueWorker.swift
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/DispatchQueueWorker.swift:14:30: warning: passing non-sendable parameter 'work' to function expecting a @Sendable closure
11 | extension DispatchQueueWorker : Worker {
12 |
13 |     public func schedule(_ work: @escaping () -> Void) -> Void {
   |                            `- note: parameter 'work' is implicitly non-sendable
14 |         queue.async(execute: work)
   |                              `- warning: passing non-sendable parameter 'work' to function expecting a @Sendable closure
15 |     }
16 |
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/Worker.swift:6:12: warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 4 | public var asyncWorker: Worker = DispatchQueueWorker.default
 5 |
 6 | public var defaultWorker: Worker = asyncWorker
   |            |- warning: var 'defaultWorker' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'defaultWorker' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'defaultWorker' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 | public protocol Worker {
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/DispatchQueueWorker.swift:22:21: warning: capture of 'work' with non-sendable type '() throws -> Void' in a `@Sendable` closure; this is an error in the Swift 6 language mode
20 |         queue.async {
21 |             do {
22 |                 try work()
   |                     |- warning: capture of 'work' with non-sendable type '() throws -> Void' in a `@Sendable` closure; this is an error in the Swift 6 language mode
   |                     `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
23 |                 catchable.close()
24 |             } catch {
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Schedule/DispatchQueueWorker.swift:23:17: warning: capture of 'catchable' with non-sendable type 'Catchable' in a `@Sendable` closure; this is an error in the Swift 6 language mode
21 |             do {
22 |                 try work()
23 |                 catchable.close()
   |                 `- warning: capture of 'catchable' with non-sendable type 'Catchable' in a `@Sendable` closure; this is an error in the Swift 6 language mode
24 |             } catch {
25 |                 catchable.handle(error: error)
/Users/admin/builder/spi-builder-workspace/Sources/FuturaAsync/Future/Catchable.swift:1:20: note: class 'Catchable' does not conform to the 'Sendable' protocol
 1 | public final class Catchable {
   |                    `- note: class 'Catchable' does not conform to the 'Sendable' protocol
 2 |
 3 |     private let future: EitherFuture<Error, Void> = Future()
Fetching https://github.com/kaqu/FuturaFunc.git
[1/90] Fetching futurafunc
Fetched https://github.com/kaqu/FuturaFunc.git from cache (0.72s)
Creating working copy for https://github.com/kaqu/FuturaFunc.git
Working copy of https://github.com/kaqu/FuturaFunc.git resolved at master (aae2984)
BUILD FAILURE 6.0 macosSpm
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.