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Build Information

Successful build of swift-perception, reference 2.0.12 (597afd), with Swift 6.4 for macOS (SPM) on 27 Sep 2026 14:01:26 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64

Build Log

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RunAll
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Builder version: 5.1.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/pointfreeco/swift-perception.git
Reference: 2.0.12
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/pointfreeco/swift-perception
 * tag               2.0.12     -> FETCH_HEAD
HEAD is now at 597afd4 Fix documentation link (#174)
Cloned https://github.com/pointfreeco/swift-perception.git
Revision (git rev-parse @):
597afd46249f4a71885b95d26b26cc5b893daf32
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/pointfreeco/swift-perception.git at 2.0.12
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/pointfreeco/swift-perception.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Computing dependencies]
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Build complete! (22.23 sec)
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/Users/admin/builder/spi-builder-workspace/Sources/PerceptionCore/Perceptions.swift:15:2: warning: symbol name 'swift_task_addCancellationHandler' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error
 13 |
 14 | @usableFromInline
 15 | @_silgen_name("swift_task_addCancellationHandler")
    |  `- warning: symbol name 'swift_task_addCancellationHandler' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error
 16 | func _taskAddCancellationHandler(handler: () -> Void)
 17 |   -> UnsafeRawPointer /*CancellationNotificationStatusRecord*/
/Users/admin/builder/spi-builder-workspace/Sources/PerceptionCore/Perceptions.swift:20:2: warning: symbol name 'swift_task_removeCancellationHandler' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error
 18 |
 19 | @usableFromInline
 20 | @_silgen_name("swift_task_removeCancellationHandler")
    |  `- warning: symbol name 'swift_task_removeCancellationHandler' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error
 21 | func _taskRemoveCancellationHandler(
 22 |   record: UnsafeRawPointer /*CancellationNotificationStatusRecord*/
/Users/admin/builder/spi-builder-workspace/Sources/PerceptionCore/Perceptions.swift:15:2: warning: symbol name 'swift_task_addCancellationHandler' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error
 13 |
 14 | @usableFromInline
 15 | @_silgen_name("swift_task_addCancellationHandler")
    |  `- warning: symbol name 'swift_task_addCancellationHandler' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error
 16 | func _taskAddCancellationHandler(handler: () -> Void)
 17 |   -> UnsafeRawPointer /*CancellationNotificationStatusRecord*/
/Users/admin/builder/spi-builder-workspace/Sources/PerceptionCore/Perceptions.swift:20:2: warning: symbol name 'swift_task_removeCancellationHandler' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error
 18 |
 19 | @usableFromInline
 20 | @_silgen_name("swift_task_removeCancellationHandler")
    |  `- warning: symbol name 'swift_task_removeCancellationHandler' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error
 21 | func _taskRemoveCancellationHandler(
 22 |   record: UnsafeRawPointer /*CancellationNotificationStatusRecord*/
/Users/admin/builder/spi-builder-workspace/Sources/PerceptionCore/Perceptions.swift:124:20: warning: 'withUnsafeContinuation(isolation:_:)' is deprecated: Replaced by nonisolated(nonsending) overload [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
122 |       state: _ManagedCriticalState<State>, id: Int
123 |     ) async {
124 |       return await withUnsafeContinuation(isolation: iterationIsolation) { continuation in
    |                    `- warning: 'withUnsafeContinuation(isolation:_:)' is deprecated: Replaced by nonisolated(nonsending) overload [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
125 |         state.withCriticalRegion { state in
126 |           defer { state.dirty = false }
/Users/admin/builder/spi-builder-workspace/Sources/PerceptionCore/Perceptions.swift:219:28: warning: converting @isolated(any) function of type '@isolated(any) @Sendable () throws(Failure) -> Element' to synchronous function type '() throws(Failure) -> Element' is not allowed; this will be an error in a future Swift language mode [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/conversion-from-isolated-any-to-synchronous\ConversionFromIsolatedAnyToSynchronous]8;;\]
217 |         case .element(let element):
218 |           // NB: This warning exists in the Swift standard library and appears to be unavoidable
219 |           Result(catching: element).map { Iteration.next($0) }
    |                            `- warning: converting @isolated(any) function of type '@isolated(any) @Sendable () throws(Failure) -> Element' to synchronous function type '() throws(Failure) -> Element' is not allowed; this will be an error in a future Swift language mode [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/conversion-from-isolated-any-to-synchronous\ConversionFromIsolatedAnyToSynchronous]8;;\]
220 |         case .iteration(let iteration):
221 |           // NB: This warning exists in the Swift standard library and appears to be unavoidable
/Users/admin/builder/spi-builder-workspace/Sources/PerceptionCore/Perceptions.swift:222:28: warning: converting @isolated(any) function of type '@isolated(any) @Sendable () throws(Failure) -> Perceptions<Element, Failure>.Iteration' to synchronous function type '() throws(Failure) -> Perceptions<Element, Failure>.Iteration' is not allowed; this will be an error in a future Swift language mode [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/conversion-from-isolated-any-to-synchronous\ConversionFromIsolatedAnyToSynchronous]8;;\]
220 |         case .iteration(let iteration):
221 |           // NB: This warning exists in the Swift standard library and appears to be unavoidable
222 |           Result(catching: iteration)
    |                            `- warning: converting @isolated(any) function of type '@isolated(any) @Sendable () throws(Failure) -> Perceptions<Element, Failure>.Iteration' to synchronous function type '() throws(Failure) -> Perceptions<Element, Failure>.Iteration' is not allowed; this will be an error in a future Swift language mode [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/conversion-from-isolated-any-to-synchronous\ConversionFromIsolatedAnyToSynchronous]8;;\]
223 |         }
224 |       } onChange: { [state] in
[#ConversionFromIsolatedAnyToSynchronous]: <https://docs.swift.org/compiler/documentation/diagnostics/conversion-from-isolated-any-to-synchronous>
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
/Users/admin/builder/spi-builder-workspace/Sources/PerceptionMacros/PerceptibleMacro.swift:251:12: warning: 'init(leadingTrivia:_:attributes:_:modifier:_:accessorSpecifier:_:parameters:_:effectSpecifiers:_:body:_:trailingTrivia:)' is deprecated: use `modifiers:` instead of `modifier:` [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
249 |     -> AccessorDeclSyntax
250 |   {
251 |     return AccessorDeclSyntax(
    |            `- warning: 'init(leadingTrivia:_:attributes:_:modifier:_:accessorSpecifier:_:parameters:_:effectSpecifiers:_:body:_:trailingTrivia:)' is deprecated: use `modifiers:` instead of `modifier:` [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
252 |       leadingTrivia: leadingTrivia,
253 |       attributes: attributes,
/Users/admin/builder/spi-builder-workspace/Sources/PerceptionMacros/PerceptibleMacro.swift:254:17: warning: 'modifier' is deprecated: use `modifiers` to see all modifiers on an accessor declaration; `modifier` only returns the first one [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
252 |       leadingTrivia: leadingTrivia,
253 |       attributes: attributes,
254 |       modifier: modifier,
    |                 `- warning: 'modifier' is deprecated: use `modifiers` to see all modifiers on an accessor declaration; `modifier` only returns the first one [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
255 |       accessorSpecifier: accessorSpecifier,
256 |       parameters: parameters,
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
Build complete.
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    {
      "name" : "PerceptionMacros",
      "targets" : [
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      "type" : {
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  "swift_languages_versions" : [
    "5"
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  "targets" : [
    {
      "c99name" : "PerceptionTests",
      "module_type" : "SwiftTarget",
      "name" : "PerceptionTests",
      "path" : "Tests/PerceptionTests",
      "sources" : [
        "ModifyAccessorTests.swift",
        "PerceptionCheckingTests.swift",
        "PerceptionTrackingTests.swift",
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        "Perception"
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      "type" : "test"
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      "product_memberships" : [
        "Perception",
        "PerceptionMacros"
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      "sources" : [
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        "Extensions.swift",
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      "type" : "macro"
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      "c99name" : "PerceptionCore",
      "module_type" : "SwiftTarget",
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      "product_dependencies" : [
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      "product_memberships" : [
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      "sources" : [
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        "Internal/Exports.swift",
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        "Internal/ObservationBeta.swift",
        "Locking.swift",
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        "Perception/PerceptionChecking.swift",
        "Perception/PerceptionRegistrar.swift",
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      ],
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}
Done.