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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

Successful build of Mobius with Swift 6.0 for macOS (SPM).

Swift 6 data race errors: 3

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
========================================
Builder version: 4.40.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/spotify/Mobius.swift.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/spotify/Mobius.swift
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 315a69a Update copyright (#208)
Cloned https://github.com/spotify/Mobius.swift.git
Revision (git rev-parse @):
315a69a3dbf85eccd12663d25e37361b6a7e1e03
SUCCESS checkout https://github.com/spotify/Mobius.swift.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/spotify/Mobius.swift.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...
[0/13] Write sources
[8/13] Write swift-version-6F35C1178C84523A.txt
[9/18] Compiling CwlMachBadInstructionHandler mach_excServer.c
[10/18] Compiling MobiusThrowableAssertion MobiusThrowableAssertion.m
[11/18] Compiling CwlCatchExceptionSupport CwlCatchException.m
[12/20] Compiling CwlMachBadInstructionHandler CwlMachBadInstructionHandler.m
[14/20] Compiling CasePaths Operators.swift
[15/20] Compiling CasePaths EnumReflection.swift
[16/20] Compiling CasePaths CasePaths.swift
[17/20] Compiling CasePaths CasePath.swift
[18/20] Emitting module CasePaths
[19/20] Emitting module CwlCatchException
[20/20] Compiling CwlCatchException CwlCatchException.swift
[21/53] Compiling MobiusCore AnonymousDisposable.swift
[22/53] Compiling MobiusCore CompositeDisposable.swift
[23/53] Compiling MobiusCore Disposable.swift
[24/56] Compiling MobiusCore ConnectablePublisher.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[25/56] Compiling MobiusCore Connection.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[26/56] Compiling MobiusCore Consumer.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[27/56] Emitting module MobiusCore
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[28/56] Compiling CwlPreconditionTesting CwlDarwinDefinitions.swift
[29/56] Compiling MobiusCore CompositeEventSourceBuilder.swift
[30/56] Compiling MobiusCore EventSource.swift
[31/56] Compiling MobiusCore First.swift
[32/56] Compiling MobiusCore EnumRoute.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[33/56] Compiling MobiusCore ThreadSafeConnectable.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[34/56] Compiling MobiusCore AnyEventSource.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[35/56] Compiling MobiusCore EffectHandler.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/EffectHandlers/EffectRouter.swift:132:37: warning: capture of 'connection' with non-sendable type 'Connection<EffectParameters>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
130 |                             if let queue = queue {
131 |                                 queue.async {
132 |                                     connection.accept(parameters)
    |                                     `- warning: capture of 'connection' with non-sendable type 'Connection<EffectParameters>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
133 |                                 }
134 |                             } else {
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/Connection.swift:20:20: note: generic class 'Connection' does not conform to the 'Sendable' protocol
18 | ///
19 | /// Used for sending values to the connection and to dispose of it and all resources associated with it.
20 | public final class Connection<Value>: Disposable {
   |                    `- note: generic class 'Connection' does not conform to the 'Sendable' protocol
21 |     private let acceptClosure: (Value) -> Void
22 |     private let disposeClosure: () -> Void
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/EffectHandlers/EffectRouter.swift:132:55: warning: capture of 'parameters' with non-sendable type 'EffectParameters' in a `@Sendable` closure; this is an error in the Swift 6 language mode
117 |     let connect: (@escaping Consumer<Output>) -> ConnectedRoute<Input>
118 |
119 |     init<EffectParameters, Conn: Connectable>(
    |          `- note: consider making generic parameter 'EffectParameters' conform to the 'Sendable' protocol
120 |         extractParameters: @escaping (Input) -> EffectParameters?,
121 |         connectable: Conn,
    :
130 |                             if let queue = queue {
131 |                                 queue.async {
132 |                                     connection.accept(parameters)
    |                                                       `- warning: capture of 'parameters' with non-sendable type 'EffectParameters' in a `@Sendable` closure; this is an error in the Swift 6 language mode
133 |                                 }
134 |                             } else {
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[36/56] Compiling MobiusCore EffectRouter.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/EffectHandlers/EffectRouter.swift:132:37: warning: capture of 'connection' with non-sendable type 'Connection<EffectParameters>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
130 |                             if let queue = queue {
131 |                                 queue.async {
132 |                                     connection.accept(parameters)
    |                                     `- warning: capture of 'connection' with non-sendable type 'Connection<EffectParameters>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
133 |                                 }
134 |                             } else {
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/Connection.swift:20:20: note: generic class 'Connection' does not conform to the 'Sendable' protocol
18 | ///
19 | /// Used for sending values to the connection and to dispose of it and all resources associated with it.
20 | public final class Connection<Value>: Disposable {
   |                    `- note: generic class 'Connection' does not conform to the 'Sendable' protocol
21 |     private let acceptClosure: (Value) -> Void
22 |     private let disposeClosure: () -> Void
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/EffectHandlers/EffectRouter.swift:132:55: warning: capture of 'parameters' with non-sendable type 'EffectParameters' in a `@Sendable` closure; this is an error in the Swift 6 language mode
117 |     let connect: (@escaping Consumer<Output>) -> ConnectedRoute<Input>
118 |
119 |     init<EffectParameters, Conn: Connectable>(
    |          `- note: consider making generic parameter 'EffectParameters' conform to the 'Sendable' protocol
120 |         extractParameters: @escaping (Input) -> EffectParameters?,
121 |         connectable: Conn,
    :
130 |                             if let queue = queue {
131 |                                 queue.async {
132 |                                     connection.accept(parameters)
    |                                                       `- warning: capture of 'parameters' with non-sendable type 'EffectParameters' in a `@Sendable` closure; this is an error in the Swift 6 language mode
133 |                                 }
134 |                             } else {
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[37/56] Compiling MobiusCore EffectRouterDSL.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/EffectHandlers/EffectRouter.swift:132:37: warning: capture of 'connection' with non-sendable type 'Connection<EffectParameters>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
130 |                             if let queue = queue {
131 |                                 queue.async {
132 |                                     connection.accept(parameters)
    |                                     `- warning: capture of 'connection' with non-sendable type 'Connection<EffectParameters>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
133 |                                 }
134 |                             } else {
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/Connection.swift:20:20: note: generic class 'Connection' does not conform to the 'Sendable' protocol
18 | ///
19 | /// Used for sending values to the connection and to dispose of it and all resources associated with it.
20 | public final class Connection<Value>: Disposable {
   |                    `- note: generic class 'Connection' does not conform to the 'Sendable' protocol
21 |     private let acceptClosure: (Value) -> Void
22 |     private let disposeClosure: () -> Void
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/EffectHandlers/EffectRouter.swift:132:55: warning: capture of 'parameters' with non-sendable type 'EffectParameters' in a `@Sendable` closure; this is an error in the Swift 6 language mode
117 |     let connect: (@escaping Consumer<Output>) -> ConnectedRoute<Input>
118 |
119 |     init<EffectParameters, Conn: Connectable>(
    |          `- note: consider making generic parameter 'EffectParameters' conform to the 'Sendable' protocol
120 |         extractParameters: @escaping (Input) -> EffectParameters?,
121 |         connectable: Conn,
    :
130 |                             if let queue = queue {
131 |                                 queue.async {
132 |                                     connection.accept(parameters)
    |                                                       `- warning: capture of 'parameters' with non-sendable type 'EffectParameters' in a `@Sendable` closure; this is an error in the Swift 6 language mode
133 |                                 }
134 |                             } else {
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[38/56] Compiling MobiusCore AsyncDispatchQueueConnectable.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:61:21: warning: capture of 'disposalStatus' with non-sendable type 'Synchronized<Bool>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
59 |                 acceptQueue.async {
60 |                     // Prevents forwarding if the connection has since been disposed.
61 |                     disposalStatus.read { disposed in
   |                     `- warning: capture of 'disposalStatus' with non-sendable type 'Synchronized<Bool>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/Lock.swift:30:13: note: generic class 'Synchronized' does not conform to the 'Sendable' protocol
28 | }
29 |
30 | final class Synchronized<Value> {
   |             `- note: generic class 'Synchronized' does not conform to the 'Sendable' protocol
31 |     private let lock = DispatchQueue(label: "Mobius synchronized storage")
32 |     private var storage: Value
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:63:25: warning: capture of 'connection' with non-sendable type 'Connection<Input>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
61 |                     disposalStatus.read { disposed in
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
   |                         `- warning: capture of 'connection' with non-sendable type 'Connection<Input>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
64 |                     }
65 |                 }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/Connection.swift:20:20: note: generic class 'Connection' does not conform to the 'Sendable' protocol
18 | ///
19 | /// Used for sending values to the connection and to dispose of it and all resources associated with it.
20 | public final class Connection<Value>: Disposable {
   |                    `- note: generic class 'Connection' does not conform to the 'Sendable' protocol
21 |     private let acceptClosure: (Value) -> Void
22 |     private let disposeClosure: () -> Void
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:63:43: warning: capture of 'input' with non-sendable type 'Input' in a `@Sendable` closure; this is an error in the Swift 6 language mode
20 | /// first switching to the provided `acceptQueue`. In other words, the real `accept` method will always be executed
21 | /// asynchronously on the provided queue.
22 | final class AsyncDispatchQueueConnectable<Input, Output>: Connectable {
   |                                           `- note: consider making generic parameter 'Input' conform to the 'Sendable' protocol
23 |     private let underlyingConnectable: AnyConnectable<Input, Output>
24 |     private let acceptQueue: DispatchQueue
   :
61 |                     disposalStatus.read { disposed in
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
   |                                           `- warning: capture of 'input' with non-sendable type 'Input' in a `@Sendable` closure; this is an error in the Swift 6 language mode
64 |                     }
65 |                 }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:63:25: warning: capture of 'connection' with non-sendable type 'Connection<Input>' in an isolated closure; this is an error in the Swift 6 language mode
61 |                     disposalStatus.read { disposed in
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
   |                         `- warning: capture of 'connection' with non-sendable type 'Connection<Input>' in an isolated closure; this is an error in the Swift 6 language mode
64 |                     }
65 |                 }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/Connection.swift:20:20: note: generic class 'Connection' does not conform to the 'Sendable' protocol
18 | ///
19 | /// Used for sending values to the connection and to dispose of it and all resources associated with it.
20 | public final class Connection<Value>: Disposable {
   |                    `- note: generic class 'Connection' does not conform to the 'Sendable' protocol
21 |     private let acceptClosure: (Value) -> Void
22 |     private let disposeClosure: () -> Void
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:63:43: warning: capture of 'input' with non-sendable type 'Input' in an isolated closure; this is an error in the Swift 6 language mode
20 | /// first switching to the provided `acceptQueue`. In other words, the real `accept` method will always be executed
21 | /// asynchronously on the provided queue.
22 | final class AsyncDispatchQueueConnectable<Input, Output>: Connectable {
   |                                           `- note: consider making generic parameter 'Input' conform to the 'Sendable' protocol
23 |     private let underlyingConnectable: AnyConnectable<Input, Output>
24 |     private let acceptQueue: DispatchQueue
   :
61 |                     disposalStatus.read { disposed in
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
   |                                           `- warning: capture of 'input' with non-sendable type 'Input' in an isolated closure; this is an error in the Swift 6 language mode
64 |                     }
65 |                 }
[39/56] Compiling MobiusCore AsyncStartStopStateMachine.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:61:21: warning: capture of 'disposalStatus' with non-sendable type 'Synchronized<Bool>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
59 |                 acceptQueue.async {
60 |                     // Prevents forwarding if the connection has since been disposed.
61 |                     disposalStatus.read { disposed in
   |                     `- warning: capture of 'disposalStatus' with non-sendable type 'Synchronized<Bool>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/Lock.swift:30:13: note: generic class 'Synchronized' does not conform to the 'Sendable' protocol
28 | }
29 |
30 | final class Synchronized<Value> {
   |             `- note: generic class 'Synchronized' does not conform to the 'Sendable' protocol
31 |     private let lock = DispatchQueue(label: "Mobius synchronized storage")
32 |     private var storage: Value
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:63:25: warning: capture of 'connection' with non-sendable type 'Connection<Input>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
61 |                     disposalStatus.read { disposed in
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
   |                         `- warning: capture of 'connection' with non-sendable type 'Connection<Input>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
64 |                     }
65 |                 }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/Connection.swift:20:20: note: generic class 'Connection' does not conform to the 'Sendable' protocol
18 | ///
19 | /// Used for sending values to the connection and to dispose of it and all resources associated with it.
20 | public final class Connection<Value>: Disposable {
   |                    `- note: generic class 'Connection' does not conform to the 'Sendable' protocol
21 |     private let acceptClosure: (Value) -> Void
22 |     private let disposeClosure: () -> Void
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:63:43: warning: capture of 'input' with non-sendable type 'Input' in a `@Sendable` closure; this is an error in the Swift 6 language mode
20 | /// first switching to the provided `acceptQueue`. In other words, the real `accept` method will always be executed
21 | /// asynchronously on the provided queue.
22 | final class AsyncDispatchQueueConnectable<Input, Output>: Connectable {
   |                                           `- note: consider making generic parameter 'Input' conform to the 'Sendable' protocol
23 |     private let underlyingConnectable: AnyConnectable<Input, Output>
24 |     private let acceptQueue: DispatchQueue
   :
61 |                     disposalStatus.read { disposed in
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
   |                                           `- warning: capture of 'input' with non-sendable type 'Input' in a `@Sendable` closure; this is an error in the Swift 6 language mode
64 |                     }
65 |                 }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:63:25: warning: capture of 'connection' with non-sendable type 'Connection<Input>' in an isolated closure; this is an error in the Swift 6 language mode
61 |                     disposalStatus.read { disposed in
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
   |                         `- warning: capture of 'connection' with non-sendable type 'Connection<Input>' in an isolated closure; this is an error in the Swift 6 language mode
64 |                     }
65 |                 }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/Connection.swift:20:20: note: generic class 'Connection' does not conform to the 'Sendable' protocol
18 | ///
19 | /// Used for sending values to the connection and to dispose of it and all resources associated with it.
20 | public final class Connection<Value>: Disposable {
   |                    `- note: generic class 'Connection' does not conform to the 'Sendable' protocol
21 |     private let acceptClosure: (Value) -> Void
22 |     private let disposeClosure: () -> Void
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:63:43: warning: capture of 'input' with non-sendable type 'Input' in an isolated closure; this is an error in the Swift 6 language mode
20 | /// first switching to the provided `acceptQueue`. In other words, the real `accept` method will always be executed
21 | /// asynchronously on the provided queue.
22 | final class AsyncDispatchQueueConnectable<Input, Output>: Connectable {
   |                                           `- note: consider making generic parameter 'Input' conform to the 'Sendable' protocol
23 |     private let underlyingConnectable: AnyConnectable<Input, Output>
24 |     private let acceptQueue: DispatchQueue
   :
61 |                     disposalStatus.read { disposed in
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
   |                                           `- warning: capture of 'input' with non-sendable type 'Input' in an isolated closure; this is an error in the Swift 6 language mode
64 |                     }
65 |                 }
[40/56] Compiling MobiusCore ConcurrentAccessDetector.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:61:21: warning: capture of 'disposalStatus' with non-sendable type 'Synchronized<Bool>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
59 |                 acceptQueue.async {
60 |                     // Prevents forwarding if the connection has since been disposed.
61 |                     disposalStatus.read { disposed in
   |                     `- warning: capture of 'disposalStatus' with non-sendable type 'Synchronized<Bool>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/Lock.swift:30:13: note: generic class 'Synchronized' does not conform to the 'Sendable' protocol
28 | }
29 |
30 | final class Synchronized<Value> {
   |             `- note: generic class 'Synchronized' does not conform to the 'Sendable' protocol
31 |     private let lock = DispatchQueue(label: "Mobius synchronized storage")
32 |     private var storage: Value
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:63:25: warning: capture of 'connection' with non-sendable type 'Connection<Input>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
61 |                     disposalStatus.read { disposed in
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
   |                         `- warning: capture of 'connection' with non-sendable type 'Connection<Input>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
64 |                     }
65 |                 }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/Connection.swift:20:20: note: generic class 'Connection' does not conform to the 'Sendable' protocol
18 | ///
19 | /// Used for sending values to the connection and to dispose of it and all resources associated with it.
20 | public final class Connection<Value>: Disposable {
   |                    `- note: generic class 'Connection' does not conform to the 'Sendable' protocol
21 |     private let acceptClosure: (Value) -> Void
22 |     private let disposeClosure: () -> Void
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:63:43: warning: capture of 'input' with non-sendable type 'Input' in a `@Sendable` closure; this is an error in the Swift 6 language mode
20 | /// first switching to the provided `acceptQueue`. In other words, the real `accept` method will always be executed
21 | /// asynchronously on the provided queue.
22 | final class AsyncDispatchQueueConnectable<Input, Output>: Connectable {
   |                                           `- note: consider making generic parameter 'Input' conform to the 'Sendable' protocol
23 |     private let underlyingConnectable: AnyConnectable<Input, Output>
24 |     private let acceptQueue: DispatchQueue
   :
61 |                     disposalStatus.read { disposed in
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
   |                                           `- warning: capture of 'input' with non-sendable type 'Input' in a `@Sendable` closure; this is an error in the Swift 6 language mode
64 |                     }
65 |                 }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:63:25: warning: capture of 'connection' with non-sendable type 'Connection<Input>' in an isolated closure; this is an error in the Swift 6 language mode
61 |                     disposalStatus.read { disposed in
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
   |                         `- warning: capture of 'connection' with non-sendable type 'Connection<Input>' in an isolated closure; this is an error in the Swift 6 language mode
64 |                     }
65 |                 }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/Connection.swift:20:20: note: generic class 'Connection' does not conform to the 'Sendable' protocol
18 | ///
19 | /// Used for sending values to the connection and to dispose of it and all resources associated with it.
20 | public final class Connection<Value>: Disposable {
   |                    `- note: generic class 'Connection' does not conform to the 'Sendable' protocol
21 |     private let acceptClosure: (Value) -> Void
22 |     private let disposeClosure: () -> Void
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:63:43: warning: capture of 'input' with non-sendable type 'Input' in an isolated closure; this is an error in the Swift 6 language mode
20 | /// first switching to the provided `acceptQueue`. In other words, the real `accept` method will always be executed
21 | /// asynchronously on the provided queue.
22 | final class AsyncDispatchQueueConnectable<Input, Output>: Connectable {
   |                                           `- note: consider making generic parameter 'Input' conform to the 'Sendable' protocol
23 |     private let underlyingConnectable: AnyConnectable<Input, Output>
24 |     private let acceptQueue: DispatchQueue
   :
61 |                     disposalStatus.read { disposed in
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
   |                                           `- warning: capture of 'input' with non-sendable type 'Input' in an isolated closure; this is an error in the Swift 6 language mode
64 |                     }
65 |                 }
[41/56] Compiling MobiusCore Connectable.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:61:21: warning: capture of 'disposalStatus' with non-sendable type 'Synchronized<Bool>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
59 |                 acceptQueue.async {
60 |                     // Prevents forwarding if the connection has since been disposed.
61 |                     disposalStatus.read { disposed in
   |                     `- warning: capture of 'disposalStatus' with non-sendable type 'Synchronized<Bool>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/Lock.swift:30:13: note: generic class 'Synchronized' does not conform to the 'Sendable' protocol
28 | }
29 |
30 | final class Synchronized<Value> {
   |             `- note: generic class 'Synchronized' does not conform to the 'Sendable' protocol
31 |     private let lock = DispatchQueue(label: "Mobius synchronized storage")
32 |     private var storage: Value
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:63:25: warning: capture of 'connection' with non-sendable type 'Connection<Input>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
61 |                     disposalStatus.read { disposed in
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
   |                         `- warning: capture of 'connection' with non-sendable type 'Connection<Input>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
64 |                     }
65 |                 }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/Connection.swift:20:20: note: generic class 'Connection' does not conform to the 'Sendable' protocol
18 | ///
19 | /// Used for sending values to the connection and to dispose of it and all resources associated with it.
20 | public final class Connection<Value>: Disposable {
   |                    `- note: generic class 'Connection' does not conform to the 'Sendable' protocol
21 |     private let acceptClosure: (Value) -> Void
22 |     private let disposeClosure: () -> Void
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:63:43: warning: capture of 'input' with non-sendable type 'Input' in a `@Sendable` closure; this is an error in the Swift 6 language mode
20 | /// first switching to the provided `acceptQueue`. In other words, the real `accept` method will always be executed
21 | /// asynchronously on the provided queue.
22 | final class AsyncDispatchQueueConnectable<Input, Output>: Connectable {
   |                                           `- note: consider making generic parameter 'Input' conform to the 'Sendable' protocol
23 |     private let underlyingConnectable: AnyConnectable<Input, Output>
24 |     private let acceptQueue: DispatchQueue
   :
61 |                     disposalStatus.read { disposed in
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
   |                                           `- warning: capture of 'input' with non-sendable type 'Input' in a `@Sendable` closure; this is an error in the Swift 6 language mode
64 |                     }
65 |                 }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:63:25: warning: capture of 'connection' with non-sendable type 'Connection<Input>' in an isolated closure; this is an error in the Swift 6 language mode
61 |                     disposalStatus.read { disposed in
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
   |                         `- warning: capture of 'connection' with non-sendable type 'Connection<Input>' in an isolated closure; this is an error in the Swift 6 language mode
64 |                     }
65 |                 }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/Connection.swift:20:20: note: generic class 'Connection' does not conform to the 'Sendable' protocol
18 | ///
19 | /// Used for sending values to the connection and to dispose of it and all resources associated with it.
20 | public final class Connection<Value>: Disposable {
   |                    `- note: generic class 'Connection' does not conform to the 'Sendable' protocol
21 |     private let acceptClosure: (Value) -> Void
22 |     private let disposeClosure: () -> Void
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncDispatchQueueConnectable.swift:63:43: warning: capture of 'input' with non-sendable type 'Input' in an isolated closure; this is an error in the Swift 6 language mode
20 | /// first switching to the provided `acceptQueue`. In other words, the real `accept` method will always be executed
21 | /// asynchronously on the provided queue.
22 | final class AsyncDispatchQueueConnectable<Input, Output>: Connectable {
   |                                           `- note: consider making generic parameter 'Input' conform to the 'Sendable' protocol
23 |     private let underlyingConnectable: AnyConnectable<Input, Output>
24 |     private let acceptQueue: DispatchQueue
   :
61 |                     disposalStatus.read { disposed in
62 |                         guard !disposed else { return }
63 |                         connection.accept(input)
   |                                           `- warning: capture of 'input' with non-sendable type 'Input' in an isolated closure; this is an error in the Swift 6 language mode
64 |                     }
65 |                 }
[42/56] Compiling MobiusCore Lock.swift
[43/56] Compiling MobiusCore LoggingAdaptors.swift
[44/56] Compiling MobiusCore Mobius.swift
[45/56] Compiling MobiusCore MobiusController.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusController.swift:105:27: warning: capture of 'state' with non-sendable type 'MobiusController<Model, Event, Effect>.State' (aka 'AsyncStartStopStateMachine<MobiusController<Model, Event, Effect>.StoppedState, MobiusController<Model, Event, Effect>.RunningState>') in a `@Sendable` closure; this is an error in the Swift 6 language mode
103 |             return { event in
104 |                 loopQueue.async {
105 |                     guard state.running else {
    |                           `- warning: capture of 'state' with non-sendable type 'MobiusController<Model, Event, Effect>.State' (aka 'AsyncStartStopStateMachine<MobiusController<Model, Event, Effect>.StoppedState, MobiusController<Model, Event, Effect>.RunningState>') in a `@Sendable` closure; this is an error in the Swift 6 language mode
106 |                         // If we got here, the controller was stopped while this async block was queued. Callers can’t
107 |                         // possibly avoid this except through complete external serialization of all access to the
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncStartStopStateMachine.swift:23:13: note: generic class 'AsyncStartStopStateMachine' does not conform to the 'Sendable' protocol
 21 | /// tools to easily make it thread safe. In particular, we need to be able to query whether we’re currently running or
 22 | /// not from any queue, including the designated mutating queue.
 23 | final class AsyncStartStopStateMachine<StoppedState, RunningState> {
    |             `- note: generic class 'AsyncStartStopStateMachine' does not conform to the 'Sendable' protocol
 24 |     // Intermediate states are required to handle the case where `running` is queried during a state transition.
 25 |     //
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusController.swift:114:21: warning: capture of 'consumer' with non-sendable type 'Consumer<Event>' (aka '(Event) -> ()') in a `@Sendable` closure; this is an error in the Swift 6 language mode
112 |                         return
113 |                     }
114 |                     consumer(event)
    |                     |- warning: capture of 'consumer' with non-sendable type 'Consumer<Event>' (aka '(Event) -> ()') 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'
115 |                 }
116 |             }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusController.swift:114:30: warning: capture of 'event' with non-sendable type 'Event' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 19 | /// If a loop is stopped and then started again via the controller, the new loop will continue from where the last one
 20 | /// left off.
 21 | public final class MobiusController<Model, Event, Effect> {
    |                                            `- note: consider making generic parameter 'Event' conform to the 'Sendable' protocol
 22 |     typealias Loop = MobiusLoop<Model, Event, Effect>
 23 |     typealias ViewConnectable = AsyncDispatchQueueConnectable<Model, Event>
    :
112 |                         return
113 |                     }
114 |                     consumer(event)
    |                              `- warning: capture of 'event' with non-sendable type 'Event' in a `@Sendable` closure; this is an error in the Swift 6 language mode
115 |                 }
116 |             }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[46/56] Compiling MobiusCore MobiusHooks.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusController.swift:105:27: warning: capture of 'state' with non-sendable type 'MobiusController<Model, Event, Effect>.State' (aka 'AsyncStartStopStateMachine<MobiusController<Model, Event, Effect>.StoppedState, MobiusController<Model, Event, Effect>.RunningState>') in a `@Sendable` closure; this is an error in the Swift 6 language mode
103 |             return { event in
104 |                 loopQueue.async {
105 |                     guard state.running else {
    |                           `- warning: capture of 'state' with non-sendable type 'MobiusController<Model, Event, Effect>.State' (aka 'AsyncStartStopStateMachine<MobiusController<Model, Event, Effect>.StoppedState, MobiusController<Model, Event, Effect>.RunningState>') in a `@Sendable` closure; this is an error in the Swift 6 language mode
106 |                         // If we got here, the controller was stopped while this async block was queued. Callers can’t
107 |                         // possibly avoid this except through complete external serialization of all access to the
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncStartStopStateMachine.swift:23:13: note: generic class 'AsyncStartStopStateMachine' does not conform to the 'Sendable' protocol
 21 | /// tools to easily make it thread safe. In particular, we need to be able to query whether we’re currently running or
 22 | /// not from any queue, including the designated mutating queue.
 23 | final class AsyncStartStopStateMachine<StoppedState, RunningState> {
    |             `- note: generic class 'AsyncStartStopStateMachine' does not conform to the 'Sendable' protocol
 24 |     // Intermediate states are required to handle the case where `running` is queried during a state transition.
 25 |     //
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusController.swift:114:21: warning: capture of 'consumer' with non-sendable type 'Consumer<Event>' (aka '(Event) -> ()') in a `@Sendable` closure; this is an error in the Swift 6 language mode
112 |                         return
113 |                     }
114 |                     consumer(event)
    |                     |- warning: capture of 'consumer' with non-sendable type 'Consumer<Event>' (aka '(Event) -> ()') 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'
115 |                 }
116 |             }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusController.swift:114:30: warning: capture of 'event' with non-sendable type 'Event' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 19 | /// If a loop is stopped and then started again via the controller, the new loop will continue from where the last one
 20 | /// left off.
 21 | public final class MobiusController<Model, Event, Effect> {
    |                                            `- note: consider making generic parameter 'Event' conform to the 'Sendable' protocol
 22 |     typealias Loop = MobiusLoop<Model, Event, Effect>
 23 |     typealias ViewConnectable = AsyncDispatchQueueConnectable<Model, Event>
    :
112 |                         return
113 |                     }
114 |                     consumer(event)
    |                              `- warning: capture of 'event' with non-sendable type 'Event' in a `@Sendable` closure; this is an error in the Swift 6 language mode
115 |                 }
116 |             }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[47/56] Compiling MobiusCore MobiusLogger.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusController.swift:105:27: warning: capture of 'state' with non-sendable type 'MobiusController<Model, Event, Effect>.State' (aka 'AsyncStartStopStateMachine<MobiusController<Model, Event, Effect>.StoppedState, MobiusController<Model, Event, Effect>.RunningState>') in a `@Sendable` closure; this is an error in the Swift 6 language mode
103 |             return { event in
104 |                 loopQueue.async {
105 |                     guard state.running else {
    |                           `- warning: capture of 'state' with non-sendable type 'MobiusController<Model, Event, Effect>.State' (aka 'AsyncStartStopStateMachine<MobiusController<Model, Event, Effect>.StoppedState, MobiusController<Model, Event, Effect>.RunningState>') in a `@Sendable` closure; this is an error in the Swift 6 language mode
106 |                         // If we got here, the controller was stopped while this async block was queued. Callers can’t
107 |                         // possibly avoid this except through complete external serialization of all access to the
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/AsyncStartStopStateMachine.swift:23:13: note: generic class 'AsyncStartStopStateMachine' does not conform to the 'Sendable' protocol
 21 | /// tools to easily make it thread safe. In particular, we need to be able to query whether we’re currently running or
 22 | /// not from any queue, including the designated mutating queue.
 23 | final class AsyncStartStopStateMachine<StoppedState, RunningState> {
    |             `- note: generic class 'AsyncStartStopStateMachine' does not conform to the 'Sendable' protocol
 24 |     // Intermediate states are required to handle the case where `running` is queried during a state transition.
 25 |     //
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusController.swift:114:21: warning: capture of 'consumer' with non-sendable type 'Consumer<Event>' (aka '(Event) -> ()') in a `@Sendable` closure; this is an error in the Swift 6 language mode
112 |                         return
113 |                     }
114 |                     consumer(event)
    |                     |- warning: capture of 'consumer' with non-sendable type 'Consumer<Event>' (aka '(Event) -> ()') 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'
115 |                 }
116 |             }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusController.swift:114:30: warning: capture of 'event' with non-sendable type 'Event' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 19 | /// If a loop is stopped and then started again via the controller, the new loop will continue from where the last one
 20 | /// left off.
 21 | public final class MobiusController<Model, Event, Effect> {
    |                                            `- note: consider making generic parameter 'Event' conform to the 'Sendable' protocol
 22 |     typealias Loop = MobiusLoop<Model, Event, Effect>
 23 |     typealias ViewConnectable = AsyncDispatchQueueConnectable<Model, Event>
    :
112 |                         return
113 |                     }
114 |                     consumer(event)
    |                              `- warning: capture of 'event' with non-sendable type 'Event' in a `@Sendable` closure; this is an error in the Swift 6 language mode
115 |                 }
116 |             }
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[48/56] Compiling MobiusCore Task+Disposable.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[49/56] Compiling MobiusCore EffectCallback.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[50/56] Compiling MobiusCore EffectExecutor.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[51/56] Compiling CwlPreconditionTesting CwlBadInstructionException.swift
[52/56] Emitting module CwlPreconditionTesting
[53/56] Compiling CwlPreconditionTesting CwlCatchBadInstruction.swift
[54/56] Compiling MobiusCore MobiusLoop.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[55/56] Compiling MobiusCore Next.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[56/56] Compiling MobiusCore WorkBag.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[57/122] Compiling MobiusExtras Copyable.swift
[58/122] Compiling MobiusExtras ConnectableMap.swift
[59/122] Compiling MobiusExtras ConnectableContramap.swift
[60/122] Compiling MobiusExtras SimpleLogger.swift
[61/122] Compiling MobiusExtras EventSourceMap.swift
[62/122] Compiling MobiusExtras BeginnerLoop.swift
[63/122] Compiling MobiusExtras ConnectableClass.swift
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: warning: static property 'errorHandler' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    |- warning: static property 'errorHandler' 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 'errorHandler' to a 'let' constant to make 'Sendable' shared state immutable
   |                                    |- note: annotate 'errorHandler' 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
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
/Users/admin/builder/spi-builder-workspace/MobiusExtras/Source/ConnectableClass.swift:74:25: warning: reference to static property 'errorHandler' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 72 |
 73 |         guard self.consumer == nil else {
 74 |             MobiusHooks.errorHandler(
    |                         `- warning: reference to static property 'errorHandler' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 75 |                 "Connection limit exceeded: The Connectable \(type(of: self)) is already connected. " +
 76 |                 "Unable to connect more than once",
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: note: static property declared here
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    `- note: static property declared here
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
/Users/admin/builder/spi-builder-workspace/MobiusExtras/Source/ConnectableClass.swift:95:25: warning: reference to static property 'errorHandler' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 93 |         lock.unlock()
 94 |         guard consumerSet else {
 95 |             MobiusHooks.errorHandler(
    |                         `- warning: reference to static property 'errorHandler' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
 96 |                 "\(type(of: self)) is unable to handle \(type(of: input)) before any consumer has been set",
 97 |                 #file,
/Users/admin/builder/spi-builder-workspace/MobiusCore/Source/MobiusHooks.swift:27:36: note: static property declared here
25 |     /// Internal: we prefer to call `errorHandler` directly, without abstractions, to minimize the depth of crash
26 |     /// stack traces. This requires that `#file` and `#line` are passed explicitly.
27 |     public private(set) static var errorHandler: ErrorHandler = MobiusHooks.defaultErrorHandler
   |                                    `- note: static property declared here
28 |
29 |     public static func setErrorHandler(_ newErrorHandler: @escaping ErrorHandler) {
[64/122] Emitting module MobiusExtras
[65/122] Compiling MobiusTest UpdateSpec.swift
[66/122] Emitting module Nimble
[67/127] Compiling MobiusTest SimpleDiff.swift
[68/127] Compiling MobiusTest MatcherUtils.swift
[69/127] Compiling MobiusTest FirstMatchers.swift
[70/127] Compiling MobiusTest InitSpec.swift
[71/127] Compiling MobiusTest NextMatchers.swift
[72/127] Emitting module MobiusTest
[73/127] Compiling MobiusTest DebugDiff.swift
[74/127] Compiling Nimble SatisfyAllOf.swift
[75/127] Compiling Nimble SatisfyAnyOf.swift
[76/127] Compiling Nimble ThrowAssertion.swift
[77/127] Compiling Nimble ThrowError.swift
[78/127] Compiling Nimble ToSucceed.swift
[79/127] Compiling Nimble BeLogical.swift
[80/127] Compiling Nimble BeNil.swift
[81/127] Compiling Nimble BeResult.swift
[82/127] Compiling Nimble BeVoid.swift
[83/127] Compiling Nimble BeWithin.swift
[84/127] Compiling Nimble AdapterProtocols.swift
[85/127] Compiling Nimble AssertionDispatcher.swift
[86/127] Compiling Nimble AssertionRecorder.swift
[87/127] Compiling Nimble NMBExpectation.swift
[88/127] Compiling Nimble NimbleEnvironment.swift
[89/127] Compiling Nimble NimbleXCTestHandler.swift
[90/127] Compiling Nimble EndWith.swift
[91/127] Compiling Nimble Equal+Tuple.swift
[92/127] Compiling Nimble Equal.swift
[93/127] Compiling Nimble HaveCount.swift
[94/127] Compiling Nimble Match.swift
[95/127] Compiling Nimble MatchError.swift
[96/127] Compiling Nimble MatcherProtocols.swift
[97/127] Compiling Nimble PostNotification.swift
[98/127] Compiling Nimble Predicate.swift
[99/127] Compiling Nimble RaisesException.swift
[100/127] Compiling Nimble BeginWith.swift
[101/127] Compiling Nimble BeginWithPrefix.swift
[102/127] Compiling Nimble Contain.swift
[103/127] Compiling Nimble ContainElementSatisfying.swift
[104/127] Compiling Nimble ElementsEqual.swift
[105/127] Compiling Nimble FailureMessage.swift
[106/127] Compiling Nimble AllPass.swift
[107/127] Compiling Nimble Async.swift
[108/127] Compiling Nimble BeAKindOf.swift
[109/127] Compiling Nimble BeAnInstanceOf.swift
[110/127] Compiling Nimble BeCloseTo.swift
[111/127] Compiling Nimble ExceptionCapture.swift
[112/127] Compiling Nimble DSL+Wait.swift
[113/127] Compiling Nimble DSL.swift
[114/127] Compiling Nimble Expectation.swift
[115/127] Compiling Nimble ExpectationMessage.swift
[116/127] Compiling Nimble Expression.swift
[117/127] Compiling Nimble BeEmpty.swift
[118/127] Compiling Nimble BeGreaterThan.swift
[119/127] Compiling Nimble BeGreaterThanOrEqualTo.swift
[120/127] Compiling Nimble BeIdenticalTo.swift
[121/127] Compiling Nimble BeLessThan.swift
[122/127] Compiling Nimble BeLessThanOrEqual.swift
[123/127] Compiling Nimble Await.swift
[124/127] Compiling Nimble DispatchTimeInterval.swift
[125/127] Compiling Nimble Errors.swift
[126/127] Compiling Nimble SourceLocation.swift
[127/127] Compiling Nimble Stringers.swift
[128/130] Emitting module MobiusNimble
/Users/admin/builder/spi-builder-workspace/MobiusNimble/Source/NimbleFirstMatchers.swift:35:5: warning: let 'unexpectedNilParameterPredicateResult' is not concurrency-safe because non-'Sendable' type 'PredicateResult' may have shared mutable state; this is an error in the Swift 6 language mode
 33 |
 34 | let nextBeingNilNotAllowed = "have a non-nil First. Got <nil>"
 35 | let unexpectedNilParameterPredicateResult = PredicateResult(bool: false, message: .expectedTo(nextBeingNilNotAllowed))
    |     `- warning: let 'unexpectedNilParameterPredicateResult' is not concurrency-safe because non-'Sendable' type 'PredicateResult' may have shared mutable state; this is an error in the Swift 6 language mode
 36 |
 37 | /// Returns a `Predicate` that matches `First` instances with a model that is equal to the supplied one.
/Users/admin/builder/spi-builder-workspace/.build/checkouts/Nimble/Sources/Nimble/Matchers/Predicate.swift:91:15: note: struct 'PredicateResult' does not conform to the 'Sendable' protocol
 89 | /// The value that a Predicates return to describe if the given (actual) value matches the
 90 | /// predicate.
 91 | public struct PredicateResult {
    |               `- note: struct 'PredicateResult' does not conform to the 'Sendable' protocol
 92 |     /// Status indicates if the predicate matches, does not match, or fails.
 93 |     public var status: PredicateStatus
/Users/admin/builder/spi-builder-workspace/MobiusNimble/Source/NimbleFirstMatchers.swift:18:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Nimble'
 16 | import MobiusCore
 17 | import MobiusTest
 18 | import Nimble
    | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Nimble'
 19 |
 20 | /// Function produces an `AssertFirst` function to be used with the `InitSpec`
    :
 33 |
 34 | let nextBeingNilNotAllowed = "have a non-nil First. Got <nil>"
 35 | let unexpectedNilParameterPredicateResult = PredicateResult(bool: false, message: .expectedTo(nextBeingNilNotAllowed))
    |     |- note: annotate 'unexpectedNilParameterPredicateResult' 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
 36 |
 37 | /// Returns a `Predicate` that matches `First` instances with a model that is equal to the supplied one.
/Users/admin/builder/spi-builder-workspace/MobiusNimble/Source/NimbleNextMatchers.swift:35:5: warning: let 'unexpectedNilParameterPredicate' is not concurrency-safe because non-'Sendable' type 'PredicateResult' may have shared mutable state; this is an error in the Swift 6 language mode
 33 |
 34 | let haveNonNilNext = "have a non-nil Next. Got <nil>"
 35 | let unexpectedNilParameterPredicate = Nimble.PredicateResult(bool: false, message: .expectedTo(haveNonNilNext))
    |     `- warning: let 'unexpectedNilParameterPredicate' is not concurrency-safe because non-'Sendable' type 'PredicateResult' may have shared mutable state; this is an error in the Swift 6 language mode
 36 |
 37 | /// - Returns: a `Predicate` that matches `Next` instances with no model and no effects.
/Users/admin/builder/spi-builder-workspace/.build/checkouts/Nimble/Sources/Nimble/Matchers/Predicate.swift:91:15: note: struct 'PredicateResult' does not conform to the 'Sendable' protocol
 89 | /// The value that a Predicates return to describe if the given (actual) value matches the
 90 | /// predicate.
 91 | public struct PredicateResult {
    |               `- note: struct 'PredicateResult' does not conform to the 'Sendable' protocol
 92 |     /// Status indicates if the predicate matches, does not match, or fails.
 93 |     public var status: PredicateStatus
/Users/admin/builder/spi-builder-workspace/MobiusNimble/Source/NimbleNextMatchers.swift:18:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Nimble'
 16 | import MobiusCore
 17 | import MobiusTest
 18 | import Nimble
    | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Nimble'
 19 |
 20 | /// Convenience function for creating assertions.
    :
 33 |
 34 | let haveNonNilNext = "have a non-nil Next. Got <nil>"
 35 | let unexpectedNilParameterPredicate = Nimble.PredicateResult(bool: false, message: .expectedTo(haveNonNilNext))
    |     |- note: annotate 'unexpectedNilParameterPredicate' 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
 36 |
 37 | /// - Returns: a `Predicate` that matches `Next` instances with no model and no effects.
[129/130] Compiling MobiusNimble NimbleNextMatchers.swift
/Users/admin/builder/spi-builder-workspace/MobiusNimble/Source/NimbleNextMatchers.swift:35:5: warning: let 'unexpectedNilParameterPredicate' is not concurrency-safe because non-'Sendable' type 'PredicateResult' may have shared mutable state; this is an error in the Swift 6 language mode
 33 |
 34 | let haveNonNilNext = "have a non-nil Next. Got <nil>"
 35 | let unexpectedNilParameterPredicate = Nimble.PredicateResult(bool: false, message: .expectedTo(haveNonNilNext))
    |     `- warning: let 'unexpectedNilParameterPredicate' is not concurrency-safe because non-'Sendable' type 'PredicateResult' may have shared mutable state; this is an error in the Swift 6 language mode
 36 |
 37 | /// - Returns: a `Predicate` that matches `Next` instances with no model and no effects.
/Users/admin/builder/spi-builder-workspace/.build/checkouts/Nimble/Sources/Nimble/Matchers/Predicate.swift:91:15: note: struct 'PredicateResult' does not conform to the 'Sendable' protocol
 89 | /// The value that a Predicates return to describe if the given (actual) value matches the
 90 | /// predicate.
 91 | public struct PredicateResult {
    |               `- note: struct 'PredicateResult' does not conform to the 'Sendable' protocol
 92 |     /// Status indicates if the predicate matches, does not match, or fails.
 93 |     public var status: PredicateStatus
/Users/admin/builder/spi-builder-workspace/MobiusNimble/Source/NimbleNextMatchers.swift:18:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Nimble'
 16 | import MobiusCore
 17 | import MobiusTest
 18 | import Nimble
    | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Nimble'
 19 |
 20 | /// Convenience function for creating assertions.
    :
 33 |
 34 | let haveNonNilNext = "have a non-nil Next. Got <nil>"
 35 | let unexpectedNilParameterPredicate = Nimble.PredicateResult(bool: false, message: .expectedTo(haveNonNilNext))
    |     |- note: annotate 'unexpectedNilParameterPredicate' 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
 36 |
 37 | /// - Returns: a `Predicate` that matches `Next` instances with no model and no effects.
[130/130] Compiling MobiusNimble NimbleFirstMatchers.swift
/Users/admin/builder/spi-builder-workspace/MobiusNimble/Source/NimbleFirstMatchers.swift:35:5: warning: let 'unexpectedNilParameterPredicateResult' is not concurrency-safe because non-'Sendable' type 'PredicateResult' may have shared mutable state; this is an error in the Swift 6 language mode
 33 |
 34 | let nextBeingNilNotAllowed = "have a non-nil First. Got <nil>"
 35 | let unexpectedNilParameterPredicateResult = PredicateResult(bool: false, message: .expectedTo(nextBeingNilNotAllowed))
    |     `- warning: let 'unexpectedNilParameterPredicateResult' is not concurrency-safe because non-'Sendable' type 'PredicateResult' may have shared mutable state; this is an error in the Swift 6 language mode
 36 |
 37 | /// Returns a `Predicate` that matches `First` instances with a model that is equal to the supplied one.
/Users/admin/builder/spi-builder-workspace/.build/checkouts/Nimble/Sources/Nimble/Matchers/Predicate.swift:91:15: note: struct 'PredicateResult' does not conform to the 'Sendable' protocol
 89 | /// The value that a Predicates return to describe if the given (actual) value matches the
 90 | /// predicate.
 91 | public struct PredicateResult {
    |               `- note: struct 'PredicateResult' does not conform to the 'Sendable' protocol
 92 |     /// Status indicates if the predicate matches, does not match, or fails.
 93 |     public var status: PredicateStatus
/Users/admin/builder/spi-builder-workspace/MobiusNimble/Source/NimbleFirstMatchers.swift:18:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Nimble'
 16 | import MobiusCore
 17 | import MobiusTest
 18 | import Nimble
    | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Nimble'
 19 |
 20 | /// Function produces an `AssertFirst` function to be used with the `InitSpec`
    :
 33 |
 34 | let nextBeingNilNotAllowed = "have a non-nil First. Got <nil>"
 35 | let unexpectedNilParameterPredicateResult = PredicateResult(bool: false, message: .expectedTo(nextBeingNilNotAllowed))
    |     |- note: annotate 'unexpectedNilParameterPredicateResult' 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
 36 |
 37 | /// Returns a `Predicate` that matches `First` instances with a model that is equal to the supplied one.
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Computed https://github.com/pointfreeco/swift-case-paths at 0.10.1 (0.73s)
Computing version for https://github.com/mattgallagher/CwlPreconditionTesting.git
Computed https://github.com/mattgallagher/CwlPreconditionTesting.git at 2.1.0 (0.65s)
Computing version for https://github.com/mattgallagher/CwlCatchException.git
Computed https://github.com/mattgallagher/CwlCatchException.git at 2.0.0 (0.65s)
Creating working copy for https://github.com/mattgallagher/CwlPreconditionTesting.git
Working copy of https://github.com/mattgallagher/CwlPreconditionTesting.git resolved at 2.1.0
Creating working copy for https://github.com/Quick/Quick
Working copy of https://github.com/Quick/Quick resolved at 5.0.1
Creating working copy for https://github.com/mattgallagher/CwlCatchException.git
Working copy of https://github.com/mattgallagher/CwlCatchException.git resolved at 2.0.0
Creating working copy for https://github.com/Quick/Nimble
Working copy of https://github.com/Quick/Nimble resolved at 10.0.0
Creating working copy for https://github.com/pointfreeco/swift-case-paths
Working copy of https://github.com/pointfreeco/swift-case-paths resolved at 0.10.1
Build complete.
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Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.