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Build Information

Successful build of FlowStacks, reference main (7b6438), with Swift 6.1 for macOS (SPM) on 11 Oct 2025 06:50:15 UTC.

Swift 6 data race errors: 2

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures

Build Log

========================================
RunAll
========================================
Builder version: 4.68.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/johnpatrickmorgan/FlowStacks.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/johnpatrickmorgan/FlowStacks
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 7b6438f Improves assertion message
Cloned https://github.com/johnpatrickmorgan/FlowStacks.git
Revision (git rev-parse @):
7b6438fef0d403c71aadf7ae41565bf4647e4af4
SUCCESS checkout https://github.com/johnpatrickmorgan/FlowStacks.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/johnpatrickmorgan/FlowStacks.git
https://github.com/johnpatrickmorgan/FlowStacks.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "FlowStacks",
  "name" : "FlowStacks",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "14.0"
    },
    {
      "name" : "watchos",
      "version" : "7.0"
    },
    {
      "name" : "macos",
      "version" : "11.0"
    },
    {
      "name" : "tvos",
      "version" : "14.0"
    }
  ],
  "products" : [
    {
      "name" : "FlowStacks",
      "targets" : [
        "FlowStacks"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "FlowStacksTests",
      "module_type" : "SwiftTarget",
      "name" : "FlowStacksTests",
      "path" : "Tests/FlowStacksTests",
      "sources" : [
        "CalculateStepsTests.swift",
        "ConvenienceMethodsTests.swift"
      ],
      "target_dependencies" : [
        "FlowStacks"
      ],
      "type" : "test"
    },
    {
      "c99name" : "FlowStacks",
      "module_type" : "SwiftTarget",
      "name" : "FlowStacks",
      "path" : "Sources/FlowStacks",
      "product_memberships" : [
        "FlowStacks"
      ],
      "sources" : [
        "ConditionalViewBuilder.swift",
        "Convenience methods/Array+convenienceMethods.swift",
        "Convenience methods/FlowNavigator+convenienceMethods.swift",
        "Convenience methods/FlowPath+convenienceMethods.swift",
        "DestinationBuilderHolder.swift",
        "DestinationBuilderModifier.swift",
        "DestinationBuilderView.swift",
        "EmbedModifier.swift",
        "EnvironmentValues+keys.swift",
        "FlowLink.swift",
        "FlowNavigator.swift",
        "FlowPath+calculateSteps.swift",
        "FlowPath.CodableRepresentation.swift",
        "FlowPath.swift",
        "FlowStack.swift",
        "LocalDestinationBuilderModifier.swift",
        "Node.swift",
        "NonReactiveState.swift",
        "Route.swift",
        "RouteProtocol.swift",
        "RouteStyle.swift",
        "Router.swift",
        "RoutesHolder.swift",
        "ScreenModifier.swift",
        "UnchangedViewModifier.swift",
        "Unobserved.swift",
        "View+UseNavigationStack.swift",
        "View+cover.swift",
        "View+flowDestination.swift",
        "View+onFirstAppear.swift",
        "View+push.swift",
        "View+sheet.swift",
        "View+show.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.10"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/33] Emitting module FlowStacks
/Users/admin/builder/spi-builder-workspace/Sources/FlowStacks/Convenience methods/Array+convenienceMethods.swift:4:27: warning: var 'isWithinTCACoordinators' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  2 |
  3 | // TCACoordinators sets this to true.
  4 | @_spi(Private) public var isWithinTCACoordinators = false
    |                           |- warning: var 'isWithinTCACoordinators' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: convert 'isWithinTCACoordinators' to a 'let' constant to make 'Sendable' shared state immutable
    |                           |- note: add '@MainActor' to make var 'isWithinTCACoordinators' part of global actor 'MainActor'
    |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
  5 | private var rootIndex: Int { isWithinTCACoordinators ? 0 : -1 }
  6 |
/Users/admin/builder/spi-builder-workspace/Sources/FlowStacks/DestinationBuilderView.swift:16:15: warning: main actor-isolated operator function '==' cannot be used to satisfy nonisolated requirement from protocol 'Equatable'; this is an error in the Swift 6 language mode
13 | }
14 |
15 | struct DataDependentView<Content: View>: View, Equatable {
   |                                                `- note: add '@preconcurrency' to the 'Equatable' conformance to defer isolation checking to run time
16 |   static func == (lhs: DataDependentView, rhs: DataDependentView) -> Bool {
   |               |- warning: main actor-isolated operator function '==' cannot be used to satisfy nonisolated requirement from protocol 'Equatable'; this is an error in the Swift 6 language mode
   |               `- note: add 'nonisolated' to '==' to make this operator function not isolated to the actor
17 |     return lhs.data.wrappedValue == rhs.data.wrappedValue
18 |   }
[4/36] Compiling FlowStacks View+push.swift
[5/36] Compiling FlowStacks View+sheet.swift
[6/36] Compiling FlowStacks View+show.swift
[7/36] Compiling FlowStacks EnvironmentValues+keys.swift
[8/36] Compiling FlowStacks FlowLink.swift
[9/36] Compiling FlowStacks FlowNavigator.swift
[10/36] Compiling FlowStacks FlowPath+calculateSteps.swift
[11/36] Compiling FlowStacks Route.swift
[12/36] Compiling FlowStacks RouteProtocol.swift
[13/36] Compiling FlowStacks RouteStyle.swift
[14/36] Compiling FlowStacks View+cover.swift
[15/36] Compiling FlowStacks View+flowDestination.swift
[16/36] Compiling FlowStacks View+onFirstAppear.swift
[17/36] Compiling FlowStacks UnchangedViewModifier.swift
[18/36] Compiling FlowStacks Unobserved.swift
[19/36] Compiling FlowStacks View+UseNavigationStack.swift
[20/36] Compiling FlowStacks ConditionalViewBuilder.swift
/Users/admin/builder/spi-builder-workspace/Sources/FlowStacks/Convenience methods/Array+convenienceMethods.swift:4:27: warning: var 'isWithinTCACoordinators' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  2 |
  3 | // TCACoordinators sets this to true.
  4 | @_spi(Private) public var isWithinTCACoordinators = false
    |                           |- warning: var 'isWithinTCACoordinators' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: convert 'isWithinTCACoordinators' to a 'let' constant to make 'Sendable' shared state immutable
    |                           |- note: add '@MainActor' to make var 'isWithinTCACoordinators' part of global actor 'MainActor'
    |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
  5 | private var rootIndex: Int { isWithinTCACoordinators ? 0 : -1 }
  6 |
[21/36] Compiling FlowStacks Array+convenienceMethods.swift
/Users/admin/builder/spi-builder-workspace/Sources/FlowStacks/Convenience methods/Array+convenienceMethods.swift:4:27: warning: var 'isWithinTCACoordinators' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  2 |
  3 | // TCACoordinators sets this to true.
  4 | @_spi(Private) public var isWithinTCACoordinators = false
    |                           |- warning: var 'isWithinTCACoordinators' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: convert 'isWithinTCACoordinators' to a 'let' constant to make 'Sendable' shared state immutable
    |                           |- note: add '@MainActor' to make var 'isWithinTCACoordinators' part of global actor 'MainActor'
    |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
  5 | private var rootIndex: Int { isWithinTCACoordinators ? 0 : -1 }
  6 |
[22/36] Compiling FlowStacks FlowNavigator+convenienceMethods.swift
/Users/admin/builder/spi-builder-workspace/Sources/FlowStacks/Convenience methods/Array+convenienceMethods.swift:4:27: warning: var 'isWithinTCACoordinators' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  2 |
  3 | // TCACoordinators sets this to true.
  4 | @_spi(Private) public var isWithinTCACoordinators = false
    |                           |- warning: var 'isWithinTCACoordinators' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: convert 'isWithinTCACoordinators' to a 'let' constant to make 'Sendable' shared state immutable
    |                           |- note: add '@MainActor' to make var 'isWithinTCACoordinators' part of global actor 'MainActor'
    |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
  5 | private var rootIndex: Int { isWithinTCACoordinators ? 0 : -1 }
  6 |
[23/36] Compiling FlowStacks FlowPath+convenienceMethods.swift
/Users/admin/builder/spi-builder-workspace/Sources/FlowStacks/Convenience methods/Array+convenienceMethods.swift:4:27: warning: var 'isWithinTCACoordinators' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  2 |
  3 | // TCACoordinators sets this to true.
  4 | @_spi(Private) public var isWithinTCACoordinators = false
    |                           |- warning: var 'isWithinTCACoordinators' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                           |- note: convert 'isWithinTCACoordinators' to a 'let' constant to make 'Sendable' shared state immutable
    |                           |- note: add '@MainActor' to make var 'isWithinTCACoordinators' part of global actor 'MainActor'
    |                           `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
  5 | private var rootIndex: Int { isWithinTCACoordinators ? 0 : -1 }
  6 |
[24/36] Compiling FlowStacks LocalDestinationBuilderModifier.swift
[25/36] Compiling FlowStacks Node.swift
[26/36] Compiling FlowStacks NonReactiveState.swift
[27/36] Compiling FlowStacks Router.swift
[28/36] Compiling FlowStacks RoutesHolder.swift
[29/36] Compiling FlowStacks ScreenModifier.swift
[30/36] Compiling FlowStacks FlowPath.CodableRepresentation.swift
[31/36] Compiling FlowStacks FlowPath.swift
[32/36] Compiling FlowStacks FlowStack.swift
[33/36] Compiling FlowStacks DestinationBuilderHolder.swift
/Users/admin/builder/spi-builder-workspace/Sources/FlowStacks/DestinationBuilderView.swift:16:15: warning: main actor-isolated operator function '==' cannot be used to satisfy nonisolated requirement from protocol 'Equatable'; this is an error in the Swift 6 language mode
13 | }
14 |
15 | struct DataDependentView<Content: View>: View, Equatable {
   |                                                `- note: add '@preconcurrency' to the 'Equatable' conformance to defer isolation checking to run time
16 |   static func == (lhs: DataDependentView, rhs: DataDependentView) -> Bool {
   |               |- warning: main actor-isolated operator function '==' cannot be used to satisfy nonisolated requirement from protocol 'Equatable'; this is an error in the Swift 6 language mode
   |               `- note: add 'nonisolated' to '==' to make this operator function not isolated to the actor
17 |     return lhs.data.wrappedValue == rhs.data.wrappedValue
18 |   }
[34/36] Compiling FlowStacks DestinationBuilderModifier.swift
/Users/admin/builder/spi-builder-workspace/Sources/FlowStacks/DestinationBuilderView.swift:16:15: warning: main actor-isolated operator function '==' cannot be used to satisfy nonisolated requirement from protocol 'Equatable'; this is an error in the Swift 6 language mode
13 | }
14 |
15 | struct DataDependentView<Content: View>: View, Equatable {
   |                                                `- note: add '@preconcurrency' to the 'Equatable' conformance to defer isolation checking to run time
16 |   static func == (lhs: DataDependentView, rhs: DataDependentView) -> Bool {
   |               |- warning: main actor-isolated operator function '==' cannot be used to satisfy nonisolated requirement from protocol 'Equatable'; this is an error in the Swift 6 language mode
   |               `- note: add 'nonisolated' to '==' to make this operator function not isolated to the actor
17 |     return lhs.data.wrappedValue == rhs.data.wrappedValue
18 |   }
[35/36] Compiling FlowStacks DestinationBuilderView.swift
/Users/admin/builder/spi-builder-workspace/Sources/FlowStacks/DestinationBuilderView.swift:16:15: warning: main actor-isolated operator function '==' cannot be used to satisfy nonisolated requirement from protocol 'Equatable'; this is an error in the Swift 6 language mode
13 | }
14 |
15 | struct DataDependentView<Content: View>: View, Equatable {
   |                                                `- note: add '@preconcurrency' to the 'Equatable' conformance to defer isolation checking to run time
16 |   static func == (lhs: DataDependentView, rhs: DataDependentView) -> Bool {
   |               |- warning: main actor-isolated operator function '==' cannot be used to satisfy nonisolated requirement from protocol 'Equatable'; this is an error in the Swift 6 language mode
   |               `- note: add 'nonisolated' to '==' to make this operator function not isolated to the actor
17 |     return lhs.data.wrappedValue == rhs.data.wrappedValue
18 |   }
[36/36] Compiling FlowStacks EmbedModifier.swift
/Users/admin/builder/spi-builder-workspace/Sources/FlowStacks/DestinationBuilderView.swift:16:15: warning: main actor-isolated operator function '==' cannot be used to satisfy nonisolated requirement from protocol 'Equatable'; this is an error in the Swift 6 language mode
13 | }
14 |
15 | struct DataDependentView<Content: View>: View, Equatable {
   |                                                `- note: add '@preconcurrency' to the 'Equatable' conformance to defer isolation checking to run time
16 |   static func == (lhs: DataDependentView, rhs: DataDependentView) -> Bool {
   |               |- warning: main actor-isolated operator function '==' cannot be used to satisfy nonisolated requirement from protocol 'Equatable'; this is an error in the Swift 6 language mode
   |               `- note: add 'nonisolated' to '==' to make this operator function not isolated to the actor
17 |     return lhs.data.wrappedValue == rhs.data.wrappedValue
18 |   }
Build complete! (10.00s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "FlowStacks",
  "name" : "FlowStacks",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "14.0"
    },
    {
      "name" : "watchos",
      "version" : "7.0"
    },
    {
      "name" : "macos",
      "version" : "11.0"
    },
    {
      "name" : "tvos",
      "version" : "14.0"
    }
  ],
  "products" : [
    {
      "name" : "FlowStacks",
      "targets" : [
        "FlowStacks"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "FlowStacksTests",
      "module_type" : "SwiftTarget",
      "name" : "FlowStacksTests",
      "path" : "Tests/FlowStacksTests",
      "sources" : [
        "CalculateStepsTests.swift",
        "ConvenienceMethodsTests.swift"
      ],
      "target_dependencies" : [
        "FlowStacks"
      ],
      "type" : "test"
    },
    {
      "c99name" : "FlowStacks",
      "module_type" : "SwiftTarget",
      "name" : "FlowStacks",
      "path" : "Sources/FlowStacks",
      "product_memberships" : [
        "FlowStacks"
      ],
      "sources" : [
        "ConditionalViewBuilder.swift",
        "Convenience methods/Array+convenienceMethods.swift",
        "Convenience methods/FlowNavigator+convenienceMethods.swift",
        "Convenience methods/FlowPath+convenienceMethods.swift",
        "DestinationBuilderHolder.swift",
        "DestinationBuilderModifier.swift",
        "DestinationBuilderView.swift",
        "EmbedModifier.swift",
        "EnvironmentValues+keys.swift",
        "FlowLink.swift",
        "FlowNavigator.swift",
        "FlowPath+calculateSteps.swift",
        "FlowPath.CodableRepresentation.swift",
        "FlowPath.swift",
        "FlowStack.swift",
        "LocalDestinationBuilderModifier.swift",
        "Node.swift",
        "NonReactiveState.swift",
        "Route.swift",
        "RouteProtocol.swift",
        "RouteStyle.swift",
        "Router.swift",
        "RoutesHolder.swift",
        "ScreenModifier.swift",
        "UnchangedViewModifier.swift",
        "Unobserved.swift",
        "View+UseNavigationStack.swift",
        "View+cover.swift",
        "View+flowDestination.swift",
        "View+onFirstAppear.swift",
        "View+push.swift",
        "View+sheet.swift",
        "View+show.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.10"
}
Done.