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Build Information

Successful build of SwiftUILazyContainer, reference main (7694c3), with Swift 6.1 for macOS (SPM) on 7 Nov 2025 18:04:20 UTC.

Swift 6 data race errors: 5

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/ciaranrobrien/SwiftUILazyContainer.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/ciaranrobrien/SwiftUILazyContainer
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 7694c34 Update README.md
Cloned https://github.com/ciaranrobrien/SwiftUILazyContainer.git
Revision (git rev-parse @):
7694c342c8745c4dcfc5ac6eb7ee162d23eeda1d
SUCCESS checkout https://github.com/ciaranrobrien/SwiftUILazyContainer.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/ciaranrobrien/SwiftUILazyContainer.git
https://github.com/ciaranrobrien/SwiftUILazyContainer.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftUILazyContainer",
  "name" : "SwiftUILazyContainer",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "maccatalyst",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftUILazyContainer",
      "targets" : [
        "SwiftUILazyContainer"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftUILazyContainer",
      "module_type" : "SwiftTarget",
      "name" : "SwiftUILazyContainer",
      "path" : "Sources/SwiftUILazyContainer",
      "product_memberships" : [
        "SwiftUILazyContainer"
      ],
      "sources" : [
        "API/LazyContainer.swift",
        "API/LazyLineSize.swift",
        "API/LazyMasonry/LazyHMasonry.swift",
        "API/LazyMasonry/LazyMasonry.swift",
        "API/LazyMasonry/LazyVMasonry.swift",
        "API/LazyStack/AltLazyHStack.swift",
        "API/LazyStack/AltLazyVStack.swift",
        "API/LazyStack/LazyStack.swift",
        "API/LazySubviewSize.swift",
        "API/LazySubviewTemplate.swift",
        "API/ResolvedLazySubviewSize.swift",
        "Examples/ExampleA.swift",
        "Examples/ExampleB.swift",
        "Examples/ExampleC.swift",
        "Examples/ExampleD.swift",
        "Internal/AnimatableEnvironment.swift",
        "Internal/Extensions.swift",
        "Internal/LazyContainerModifier.swift",
        "Internal/LazySubviewSizeProvider.swift",
        "Internal/LengthReader.swift",
        "Internal/Masonry/LazyMasonryLayout.swift",
        "Internal/Masonry/LazyMasonryModifier.swift",
        "Internal/Stack/LazyStackLayout.swift",
        "Internal/Stack/LazyStackModifier.swift",
        "Internal/VisibleElement.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
[3/26] Emitting module SwiftUILazyContainer
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/API/LazyLineSize.swift:53:1: warning: extension declares a conformance of imported type 'Array' to imported protocol 'ExpressibleByIntegerLiteral'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
51 |
52 |
53 | extension [LazyLineSize]: ExpressibleByIntegerLiteral {
   | |- warning: extension declares a conformance of imported type 'Array' to imported protocol 'ExpressibleByIntegerLiteral'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
54 |
55 |     /// Multiple lines in the space of a single flexible line.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/AnimatableEnvironment.swift:20:9: warning: main actor-isolated property 'animatableData' cannot be used to satisfy nonisolated requirement from protocol 'Animatable'; this is an error in the Swift 6 language mode
18 |     }
19 |
20 |     var animatableData: Value.AnimatableData {
   |         `- warning: main actor-isolated property 'animatableData' cannot be used to satisfy nonisolated requirement from protocol 'Animatable'; this is an error in the Swift 6 language mode
21 |         get { value.animatableData }
22 |         set { value.animatableData = newValue }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/Extensions.swift:11:1: warning: extension declares a conformance of imported type 'Array' to imported protocols 'AdditiveArithmetic', 'Animatable', 'VectorArithmetic'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
  9 | import enum Accelerate.vDSP
 10 |
 11 | extension Array<Double>: AdditiveArithmetic, Animatable, VectorArithmetic {
    | |- warning: extension declares a conformance of imported type 'Array' to imported protocols 'AdditiveArithmetic', 'Animatable', 'VectorArithmetic'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
 12 |     public static var zero: Self = [.zero]
 13 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/Extensions.swift:12:23: warning: static property 'zero' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 10 |
 11 | extension Array<Double>: AdditiveArithmetic, Animatable, VectorArithmetic {
 12 |     public static var zero: Self = [.zero]
    |                       |- warning: static property 'zero' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'zero' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: add '@MainActor' to make static property 'zero' part of global actor 'MainActor'
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 13 |
 14 |     public static func + (lhs: [Double], rhs: [Double]) -> [Double] {
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/Extensions.swift:44:1: warning: extension declares a conformance of imported type 'Double' to imported protocol 'Animatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
 42 |
 43 |
 44 | extension Double: Animatable { }
    | |- warning: extension declares a conformance of imported type 'Double' to imported protocol 'Animatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
 45 |
 46 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/Extensions.swift:148:16: warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type 'LazySubviewTemplateAnchorsKey.Value' (aka 'Dictionary<Optional<AnyHashable>, Anchor<CGRect>>') may have shared mutable state; this is an error in the Swift 6 language mode
146 |     typealias Value = [AnyHashable? : Anchor<CGRect>]
147 |
148 |     static let defaultValue: Value = [:]
    |                |- warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type 'LazySubviewTemplateAnchorsKey.Value' (aka 'Dictionary<Optional<AnyHashable>, Anchor<CGRect>>') may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: add '@MainActor' to make static property 'defaultValue' part of global actor 'MainActor'
    |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
149 |
150 |     static func reduce(value: inout Value, nextValue: () -> Value) {
Swift.Dictionary:1:23: note: generic struct 'Dictionary' does not conform to the 'Sendable' protocol
1 | @frozen public struct Dictionary<Key, Value> where Key : Hashable {
  |                       `- note: generic struct 'Dictionary' does not conform to the 'Sendable' protocol
2 |     public typealias Element = (key: Key, value: Value)
3 |     @inlinable public init(_immutableCocoaDictionary: __owned AnyObject)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/Extensions.swift:166:16: warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type '[AnyHashable? : CGSize]' may have shared mutable state; this is an error in the Swift 6 language mode
164 | }
165 | private struct LazyContentTemplateSizesKey: EnvironmentKey {
166 |     static let defaultValue = [AnyHashable? : CGSize]()
    |                |- warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type '[AnyHashable? : CGSize]' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: add '@MainActor' to make static property 'defaultValue' part of global actor 'MainActor'
    |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
167 | }
168 |
Swift.Dictionary:1:23: note: generic struct 'Dictionary' does not conform to the 'Sendable' protocol
1 | @frozen public struct Dictionary<Key, Value> where Key : Hashable {
  |                       `- note: generic struct 'Dictionary' does not conform to the 'Sendable' protocol
2 |     public typealias Element = (key: Key, value: Value)
3 |     @inlinable public init(_immutableCocoaDictionary: __owned AnyObject)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/LazyContainerModifier.swift:43:9: warning: main actor-isolated property 'animatableData' cannot be used to satisfy nonisolated requirement from protocol 'Animatable'; this is an error in the Swift 6 language mode
 41 |     }
 42 |
 43 |     var animatableData: AnimatablePair<EdgeInsets.AnimatableData, EdgeInsets.AnimatableData> {
    |         `- warning: main actor-isolated property 'animatableData' cannot be used to satisfy nonisolated requirement from protocol 'Animatable'; this is an error in the Swift 6 language mode
 44 |         get {
 45 |             AnimatablePair(insets.animatableData, safeAreaFactors.animatableData)
[4/28] Compiling SwiftUILazyContainer LazyStackModifier.swift
[5/28] Compiling SwiftUILazyContainer VisibleElement.swift
[6/28] Compiling SwiftUILazyContainer LazyMasonryModifier.swift
[7/28] Compiling SwiftUILazyContainer LazyStackLayout.swift
[8/28] Compiling SwiftUILazyContainer LazySubviewTemplate.swift
[9/28] Compiling SwiftUILazyContainer ResolvedLazySubviewSize.swift
[10/28] Compiling SwiftUILazyContainer ExampleA.swift
[11/28] Compiling SwiftUILazyContainer LazyContainerModifier.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/LazyContainerModifier.swift:43:9: warning: main actor-isolated property 'animatableData' cannot be used to satisfy nonisolated requirement from protocol 'Animatable'; this is an error in the Swift 6 language mode
 41 |     }
 42 |
 43 |     var animatableData: AnimatablePair<EdgeInsets.AnimatableData, EdgeInsets.AnimatableData> {
    |         `- warning: main actor-isolated property 'animatableData' cannot be used to satisfy nonisolated requirement from protocol 'Animatable'; this is an error in the Swift 6 language mode
 44 |         get {
 45 |             AnimatablePair(insets.animatableData, safeAreaFactors.animatableData)
[12/28] Compiling SwiftUILazyContainer LazySubviewSizeProvider.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/LazyContainerModifier.swift:43:9: warning: main actor-isolated property 'animatableData' cannot be used to satisfy nonisolated requirement from protocol 'Animatable'; this is an error in the Swift 6 language mode
 41 |     }
 42 |
 43 |     var animatableData: AnimatablePair<EdgeInsets.AnimatableData, EdgeInsets.AnimatableData> {
    |         `- warning: main actor-isolated property 'animatableData' cannot be used to satisfy nonisolated requirement from protocol 'Animatable'; this is an error in the Swift 6 language mode
 44 |         get {
 45 |             AnimatablePair(insets.animatableData, safeAreaFactors.animatableData)
[13/28] Compiling SwiftUILazyContainer LazyContainer.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/API/LazyLineSize.swift:53:1: warning: extension declares a conformance of imported type 'Array' to imported protocol 'ExpressibleByIntegerLiteral'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
51 |
52 |
53 | extension [LazyLineSize]: ExpressibleByIntegerLiteral {
   | |- warning: extension declares a conformance of imported type 'Array' to imported protocol 'ExpressibleByIntegerLiteral'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
54 |
55 |     /// Multiple lines in the space of a single flexible line.
[14/28] Compiling SwiftUILazyContainer LazyLineSize.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/API/LazyLineSize.swift:53:1: warning: extension declares a conformance of imported type 'Array' to imported protocol 'ExpressibleByIntegerLiteral'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
51 |
52 |
53 | extension [LazyLineSize]: ExpressibleByIntegerLiteral {
   | |- warning: extension declares a conformance of imported type 'Array' to imported protocol 'ExpressibleByIntegerLiteral'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
54 |
55 |     /// Multiple lines in the space of a single flexible line.
[15/28] Compiling SwiftUILazyContainer LazyHMasonry.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/API/LazyLineSize.swift:53:1: warning: extension declares a conformance of imported type 'Array' to imported protocol 'ExpressibleByIntegerLiteral'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
51 |
52 |
53 | extension [LazyLineSize]: ExpressibleByIntegerLiteral {
   | |- warning: extension declares a conformance of imported type 'Array' to imported protocol 'ExpressibleByIntegerLiteral'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
54 |
55 |     /// Multiple lines in the space of a single flexible line.
[16/28] Compiling SwiftUILazyContainer AltLazyVStack.swift
[17/28] Compiling SwiftUILazyContainer LazyStack.swift
[18/28] Compiling SwiftUILazyContainer LazySubviewSize.swift
[19/28] Compiling SwiftUILazyContainer LengthReader.swift
[20/28] Compiling SwiftUILazyContainer LazyMasonryLayout.swift
[21/28] Compiling SwiftUILazyContainer ExampleB.swift
[22/28] Compiling SwiftUILazyContainer ExampleC.swift
[23/28] Compiling SwiftUILazyContainer ExampleD.swift
[24/28] Compiling SwiftUILazyContainer LazyMasonry.swift
[25/28] Compiling SwiftUILazyContainer LazyVMasonry.swift
[26/28] Compiling SwiftUILazyContainer AltLazyHStack.swift
[27/28] Compiling SwiftUILazyContainer AnimatableEnvironment.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/AnimatableEnvironment.swift:20:9: warning: main actor-isolated property 'animatableData' cannot be used to satisfy nonisolated requirement from protocol 'Animatable'; this is an error in the Swift 6 language mode
18 |     }
19 |
20 |     var animatableData: Value.AnimatableData {
   |         `- warning: main actor-isolated property 'animatableData' cannot be used to satisfy nonisolated requirement from protocol 'Animatable'; this is an error in the Swift 6 language mode
21 |         get { value.animatableData }
22 |         set { value.animatableData = newValue }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/Extensions.swift:11:1: warning: extension declares a conformance of imported type 'Array' to imported protocols 'AdditiveArithmetic', 'Animatable', 'VectorArithmetic'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
  9 | import enum Accelerate.vDSP
 10 |
 11 | extension Array<Double>: AdditiveArithmetic, Animatable, VectorArithmetic {
    | |- warning: extension declares a conformance of imported type 'Array' to imported protocols 'AdditiveArithmetic', 'Animatable', 'VectorArithmetic'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
 12 |     public static var zero: Self = [.zero]
 13 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/Extensions.swift:12:23: warning: static property 'zero' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 10 |
 11 | extension Array<Double>: AdditiveArithmetic, Animatable, VectorArithmetic {
 12 |     public static var zero: Self = [.zero]
    |                       |- warning: static property 'zero' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'zero' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: add '@MainActor' to make static property 'zero' part of global actor 'MainActor'
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 13 |
 14 |     public static func + (lhs: [Double], rhs: [Double]) -> [Double] {
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/Extensions.swift:44:1: warning: extension declares a conformance of imported type 'Double' to imported protocol 'Animatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
 42 |
 43 |
 44 | extension Double: Animatable { }
    | |- warning: extension declares a conformance of imported type 'Double' to imported protocol 'Animatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
 45 |
 46 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/Extensions.swift:148:16: warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type 'LazySubviewTemplateAnchorsKey.Value' (aka 'Dictionary<Optional<AnyHashable>, Anchor<CGRect>>') may have shared mutable state; this is an error in the Swift 6 language mode
146 |     typealias Value = [AnyHashable? : Anchor<CGRect>]
147 |
148 |     static let defaultValue: Value = [:]
    |                |- warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type 'LazySubviewTemplateAnchorsKey.Value' (aka 'Dictionary<Optional<AnyHashable>, Anchor<CGRect>>') may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: add '@MainActor' to make static property 'defaultValue' part of global actor 'MainActor'
    |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
149 |
150 |     static func reduce(value: inout Value, nextValue: () -> Value) {
Swift.Dictionary:1:23: note: generic struct 'Dictionary' does not conform to the 'Sendable' protocol
1 | @frozen public struct Dictionary<Key, Value> where Key : Hashable {
  |                       `- note: generic struct 'Dictionary' does not conform to the 'Sendable' protocol
2 |     public typealias Element = (key: Key, value: Value)
3 |     @inlinable public init(_immutableCocoaDictionary: __owned AnyObject)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/Extensions.swift:166:16: warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type '[AnyHashable? : CGSize]' may have shared mutable state; this is an error in the Swift 6 language mode
164 | }
165 | private struct LazyContentTemplateSizesKey: EnvironmentKey {
166 |     static let defaultValue = [AnyHashable? : CGSize]()
    |                |- warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type '[AnyHashable? : CGSize]' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: add '@MainActor' to make static property 'defaultValue' part of global actor 'MainActor'
    |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
167 | }
168 |
Swift.Dictionary:1:23: note: generic struct 'Dictionary' does not conform to the 'Sendable' protocol
1 | @frozen public struct Dictionary<Key, Value> where Key : Hashable {
  |                       `- note: generic struct 'Dictionary' does not conform to the 'Sendable' protocol
2 |     public typealias Element = (key: Key, value: Value)
3 |     @inlinable public init(_immutableCocoaDictionary: __owned AnyObject)
[28/28] Compiling SwiftUILazyContainer Extensions.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/AnimatableEnvironment.swift:20:9: warning: main actor-isolated property 'animatableData' cannot be used to satisfy nonisolated requirement from protocol 'Animatable'; this is an error in the Swift 6 language mode
18 |     }
19 |
20 |     var animatableData: Value.AnimatableData {
   |         `- warning: main actor-isolated property 'animatableData' cannot be used to satisfy nonisolated requirement from protocol 'Animatable'; this is an error in the Swift 6 language mode
21 |         get { value.animatableData }
22 |         set { value.animatableData = newValue }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/Extensions.swift:11:1: warning: extension declares a conformance of imported type 'Array' to imported protocols 'AdditiveArithmetic', 'Animatable', 'VectorArithmetic'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
  9 | import enum Accelerate.vDSP
 10 |
 11 | extension Array<Double>: AdditiveArithmetic, Animatable, VectorArithmetic {
    | |- warning: extension declares a conformance of imported type 'Array' to imported protocols 'AdditiveArithmetic', 'Animatable', 'VectorArithmetic'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
 12 |     public static var zero: Self = [.zero]
 13 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/Extensions.swift:12:23: warning: static property 'zero' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 10 |
 11 | extension Array<Double>: AdditiveArithmetic, Animatable, VectorArithmetic {
 12 |     public static var zero: Self = [.zero]
    |                       |- warning: static property 'zero' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'zero' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: add '@MainActor' to make static property 'zero' part of global actor 'MainActor'
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 13 |
 14 |     public static func + (lhs: [Double], rhs: [Double]) -> [Double] {
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/Extensions.swift:44:1: warning: extension declares a conformance of imported type 'Double' to imported protocol 'Animatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
 42 |
 43 |
 44 | extension Double: Animatable { }
    | |- warning: extension declares a conformance of imported type 'Double' to imported protocol 'Animatable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
 45 |
 46 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/Extensions.swift:148:16: warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type 'LazySubviewTemplateAnchorsKey.Value' (aka 'Dictionary<Optional<AnyHashable>, Anchor<CGRect>>') may have shared mutable state; this is an error in the Swift 6 language mode
146 |     typealias Value = [AnyHashable? : Anchor<CGRect>]
147 |
148 |     static let defaultValue: Value = [:]
    |                |- warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type 'LazySubviewTemplateAnchorsKey.Value' (aka 'Dictionary<Optional<AnyHashable>, Anchor<CGRect>>') may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: add '@MainActor' to make static property 'defaultValue' part of global actor 'MainActor'
    |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
149 |
150 |     static func reduce(value: inout Value, nextValue: () -> Value) {
Swift.Dictionary:1:23: note: generic struct 'Dictionary' does not conform to the 'Sendable' protocol
1 | @frozen public struct Dictionary<Key, Value> where Key : Hashable {
  |                       `- note: generic struct 'Dictionary' does not conform to the 'Sendable' protocol
2 |     public typealias Element = (key: Key, value: Value)
3 |     @inlinable public init(_immutableCocoaDictionary: __owned AnyObject)
/Users/admin/builder/spi-builder-workspace/Sources/SwiftUILazyContainer/Internal/Extensions.swift:166:16: warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type '[AnyHashable? : CGSize]' may have shared mutable state; this is an error in the Swift 6 language mode
164 | }
165 | private struct LazyContentTemplateSizesKey: EnvironmentKey {
166 |     static let defaultValue = [AnyHashable? : CGSize]()
    |                |- warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type '[AnyHashable? : CGSize]' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: add '@MainActor' to make static property 'defaultValue' part of global actor 'MainActor'
    |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
167 | }
168 |
Swift.Dictionary:1:23: note: generic struct 'Dictionary' does not conform to the 'Sendable' protocol
1 | @frozen public struct Dictionary<Key, Value> where Key : Hashable {
  |                       `- note: generic struct 'Dictionary' does not conform to the 'Sendable' protocol
2 |     public typealias Element = (key: Key, value: Value)
3 |     @inlinable public init(_immutableCocoaDictionary: __owned AnyObject)
Build complete! (11.12s)
Build complete.
{
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  "manifest_display_name" : "SwiftUILazyContainer",
  "name" : "SwiftUILazyContainer",
  "path" : "/Users/admin/builder/spi-builder-workspace",
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  "targets" : [
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      "product_memberships" : [
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        "API/LazyLineSize.swift",
        "API/LazyMasonry/LazyHMasonry.swift",
        "API/LazyMasonry/LazyMasonry.swift",
        "API/LazyMasonry/LazyVMasonry.swift",
        "API/LazyStack/AltLazyHStack.swift",
        "API/LazyStack/AltLazyVStack.swift",
        "API/LazyStack/LazyStack.swift",
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        "Examples/ExampleB.swift",
        "Examples/ExampleC.swift",
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}
Done.