Swift Package Index

Build Information

Failed to build CombineX, reference master (299bc0), with Swift 6.4 for macOS (SPM) on 17 Sep 2026 18:49:58 UTC.

Build Command

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

Build Log

========================================
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/cx-org/CombineX.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/cx-org/CombineX
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 299bc0f fix swift 5.4 on linux
Submodule path 'CXShim': checked out '07309a901b26c043c33d04746ff96d6caaa99737'
Submodule path 'CXTest': checked out '37c165eab3505d1f1e3bb7f12518db5ff4fad569'
Submodule 'CXShim' (https://github.com/cx-org/CXShim) registered for path 'CXShim'
Submodule 'CXTest' (https://github.com/cx-org/CXTest) registered for path 'CXTest'
Cloning into '/Users/admin/builder/spi-builder-workspace/CXShim'...
Cloning into '/Users/admin/builder/spi-builder-workspace/CXTest'...
Cloned https://github.com/cx-org/CombineX.git
Revision (git rev-parse @):
299bc0f8861f7aa6708780457aeeafab1c51eaa7
SUCCESS checkout https://github.com/cx-org/CombineX.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/cx-org/CombineX.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Computing dependencies]
[Provisioning 4 / 25]
[Pre-planning 1 / 540]
[Planning deferred tasks]
[108 / 227]
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[260 / 417] CombineX
[263 / 417] CwlMachBadInstructionHandler
[270 / 417] CwlMachBadInstructionHandler
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[364 / 431] QuickObjCRuntime
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[452 / 463] Quick
[453 / 463] Nimble
[455 / 463] CXTestUtility
[466 / 474] CXTestUtility
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/Users/admin/builder/spi-builder-workspace/Sources/CombineX/CombineIdentifier.swift:2:22: warning: safely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'CombineX' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 1 | #if CX_LOCK_FREE_ATOMIC
 2 | @_implementationOnly import Atomics
   |                      `- warning: safely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'CombineX' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 3 | private let counter = UnsafeAtomic<UInt64>.create(0)
 4 | #else
[#ImplementationOnlyDeprecated]: <https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated>
/Users/admin/builder/spi-builder-workspace/Sources/CombineX/Internal/Runtime.swift:285:2: warning: symbol name 'swift_getTypeByMangledNameInContext' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error
283 | }()
284 |
285 | @_silgen_name("swift_getTypeByMangledNameInContext")
    |  `- warning: symbol name 'swift_getTypeByMangledNameInContext' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error
286 | private func _getTypeByMangledNameInContext(
287 |     _ name: UnsafePointer<UInt8>,
/Users/admin/builder/spi-builder-workspace/Sources/CombineX/CombineIdentifier.swift:2:22: warning: safely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'CombineX' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 1 | #if CX_LOCK_FREE_ATOMIC
 2 | @_implementationOnly import Atomics
   |                      `- warning: safely use '@_implementationOnly' without library evolution by setting '-enable-experimental-feature CheckImplementationOnly' for 'CombineX' [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated\ImplementationOnlyDeprecated]8;;\]
 3 | private let counter = UnsafeAtomic<UInt64>.create(0)
 4 | #else
/Users/admin/builder/spi-builder-workspace/Sources/CombineX/Internal/Runtime.swift:285:2: warning: symbol name 'swift_getTypeByMangledNameInContext' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error
283 | }()
284 |
285 | @_silgen_name("swift_getTypeByMangledNameInContext")
    |  `- warning: symbol name 'swift_getTypeByMangledNameInContext' is reserved for the Swift runtime and cannot be directly referenced without causing unpredictable behavior; this will become an error
286 | private func _getTypeByMangledNameInContext(
287 |     _ name: UnsafePointer<UInt8>,
/Users/admin/builder/spi-builder-workspace/Sources/CombineX/Publishers/B/Result.Publisher.swift:274:32: warning: generic parameter 'Failure' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
272 | extension Result.CX.Publisher where Failure == Never {
273 |
274 |     public func setFailureType<Failure: Error>(to failureType: Failure.Type) -> Result<Output, Failure>.CX.Publisher {
    |                                `- warning: generic parameter 'Failure' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
275 |         return .init(.success(result.success))
276 |     }
[#ImplementationOnlyDeprecated]: <https://docs.swift.org/compiler/documentation/diagnostics/implementation-only-deprecated>
/Users/admin/builder/spi-builder-workspace/CXShim/Sources/CXCompatible/Foundation.swift:9:1: warning: non-final class 'NSObject' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
 7 | #endif
 8 |
 9 | extension NSObject: CXSelfWrapping {}
   | `- warning: non-final class 'NSObject' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
10 | extension JSONEncoder: CXSelfWrapping {}
11 | extension JSONDecoder: CXSelfWrapping {}
/Users/admin/builder/spi-builder-workspace/CXShim/Sources/CXCompatible/Foundation.swift:10:1: warning: non-final class 'JSONEncoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
 8 |
 9 | extension NSObject: CXSelfWrapping {}
10 | extension JSONEncoder: CXSelfWrapping {}
   | `- warning: non-final class 'JSONEncoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
11 | extension JSONDecoder: CXSelfWrapping {}
12 |
/Users/admin/builder/spi-builder-workspace/CXShim/Sources/CXCompatible/Foundation.swift:11:1: warning: non-final class 'JSONDecoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
 9 | extension NSObject: CXSelfWrapping {}
10 | extension JSONEncoder: CXSelfWrapping {}
11 | extension JSONDecoder: CXSelfWrapping {}
   | `- warning: non-final class 'JSONDecoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
12 |
13 | extension CXWrappers {
/Users/admin/builder/spi-builder-workspace/CXShim/Sources/CXCompatible/Foundation.swift:30:1: warning: non-final class 'PropertyListEncoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
28 | #if os(macOS) || os(iOS) || os(tvOS) || os(watchOS)
29 |
30 | extension PropertyListEncoder: CXSelfWrapping {}
   | `- warning: non-final class 'PropertyListEncoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
31 | extension PropertyListDecoder: CXSelfWrapping {}
32 |
/Users/admin/builder/spi-builder-workspace/CXShim/Sources/CXCompatible/Foundation.swift:31:1: warning: non-final class 'PropertyListDecoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
29 |
30 | extension PropertyListEncoder: CXSelfWrapping {}
31 | extension PropertyListDecoder: CXSelfWrapping {}
   | `- warning: non-final class 'PropertyListDecoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
32 |
33 | extension CXWrappers {
/Users/admin/builder/spi-builder-workspace/Sources/CombineX/Publishers/B/Result.Publisher.swift:274:32: warning: generic parameter 'Failure' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
272 | extension Result.CX.Publisher where Failure == Never {
273 |
274 |     public func setFailureType<Failure: Error>(to failureType: Failure.Type) -> Result<Output, Failure>.CX.Publisher {
    |                                `- warning: generic parameter 'Failure' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
275 |         return .init(.success(result.success))
276 |     }
/Users/admin/builder/spi-builder-workspace/Sources/CXFoundation/JSONDecoder.swift:21:1: warning: extension declares a conformance of imported type 'JSONDecoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
19 | }
20 |
21 | extension JSONDecoder: CXWrapping {
   | |- warning: extension declares a conformance of imported type 'JSONDecoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
22 |
23 |     public typealias CX = CXWrappers.JSONDecoder
/Users/admin/builder/spi-builder-workspace/Sources/CXFoundation/JSONEncoder.swift:21:1: warning: extension declares a conformance of imported type 'JSONEncoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
19 | }
20 |
21 | extension JSONEncoder: CXWrapping {
   | |- warning: extension declares a conformance of imported type 'JSONEncoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
22 |
23 |     public typealias CX = CXWrappers.JSONEncoder
/Users/admin/builder/spi-builder-workspace/Sources/CXFoundation/OperationQueue.swift:165:25: warning: class 'DelayReadyOperation' must restate inherited '@unchecked Sendable' conformance
163 |     public struct SchedulerOptions { }
164 |
165 |     private final class DelayReadyOperation: Operation, Cancellable {
    |                         `- warning: class 'DelayReadyOperation' must restate inherited '@unchecked Sendable' conformance
166 |         static var readySchedulingQueue: DispatchQueue = {
167 |             return DispatchQueue(label: "DelayReadyOperation")
/Users/admin/builder/spi-builder-workspace/Sources/CXFoundation/PropertyListDecoder.swift:23:1: warning: extension declares a conformance of imported type 'PropertyListDecoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
21 | }
22 |
23 | extension PropertyListDecoder: CXWrapping {
   | |- warning: extension declares a conformance of imported type 'PropertyListDecoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
24 |
25 |     public typealias CX = CXWrappers.PropertyListDecoder
/Users/admin/builder/spi-builder-workspace/Sources/CXFoundation/PropertyListEncoder.swift:23:1: warning: extension declares a conformance of imported type 'PropertyListEncoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
21 | }
22 |
23 | extension PropertyListEncoder: CXWrapping {
   | |- warning: extension declares a conformance of imported type 'PropertyListEncoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
24 |
25 |     public typealias CX = CXWrappers.PropertyListEncoder
/Users/admin/builder/spi-builder-workspace/Sources/CXFoundation/PropertyListDecoder.swift:23:1: warning: extension declares a conformance of imported type 'PropertyListDecoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
21 | }
22 |
23 | extension PropertyListDecoder: CXWrapping {
   | |- warning: extension declares a conformance of imported type 'PropertyListDecoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
24 |
25 |     public typealias CX = CXWrappers.PropertyListDecoder
/Users/admin/builder/spi-builder-workspace/CXShim/Sources/CXCompatible/Foundation.swift:9:1: warning: non-final class 'NSObject' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
 7 | #endif
 8 |
 9 | extension NSObject: CXSelfWrapping {}
   | `- warning: non-final class 'NSObject' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
10 | extension JSONEncoder: CXSelfWrapping {}
11 | extension JSONDecoder: CXSelfWrapping {}
/Users/admin/builder/spi-builder-workspace/CXShim/Sources/CXCompatible/Foundation.swift:10:1: warning: non-final class 'JSONEncoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
 8 |
 9 | extension NSObject: CXSelfWrapping {}
10 | extension JSONEncoder: CXSelfWrapping {}
   | `- warning: non-final class 'JSONEncoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
11 | extension JSONDecoder: CXSelfWrapping {}
12 |
/Users/admin/builder/spi-builder-workspace/CXShim/Sources/CXCompatible/Foundation.swift:11:1: warning: non-final class 'JSONDecoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
 9 | extension NSObject: CXSelfWrapping {}
10 | extension JSONEncoder: CXSelfWrapping {}
11 | extension JSONDecoder: CXSelfWrapping {}
   | `- warning: non-final class 'JSONDecoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
12 |
13 | extension CXWrappers {
/Users/admin/builder/spi-builder-workspace/CXShim/Sources/CXCompatible/Foundation.swift:30:1: warning: non-final class 'PropertyListEncoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
28 | #if os(macOS) || os(iOS) || os(tvOS) || os(watchOS)
29 |
30 | extension PropertyListEncoder: CXSelfWrapping {}
   | `- warning: non-final class 'PropertyListEncoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
31 | extension PropertyListDecoder: CXSelfWrapping {}
32 |
/Users/admin/builder/spi-builder-workspace/CXShim/Sources/CXCompatible/Foundation.swift:31:1: warning: non-final class 'PropertyListDecoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
29 |
30 | extension PropertyListEncoder: CXSelfWrapping {}
31 | extension PropertyListDecoder: CXSelfWrapping {}
   | `- warning: non-final class 'PropertyListDecoder' cannot safely conform to protocol 'CXSelfWrapping', which requires that 'Self.Base' is exactly equal to 'Self'; this is an error in the Swift 6 language mode
32 |
33 | extension CXWrappers {
/Users/admin/builder/spi-builder-workspace/Sources/CXFoundation/JSONDecoder.swift:21:1: warning: extension declares a conformance of imported type 'JSONDecoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
19 | }
20 |
21 | extension JSONDecoder: CXWrapping {
   | |- warning: extension declares a conformance of imported type 'JSONDecoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
22 |
23 |     public typealias CX = CXWrappers.JSONDecoder
/Users/admin/builder/spi-builder-workspace/Sources/CXFoundation/JSONEncoder.swift:21:1: warning: extension declares a conformance of imported type 'JSONEncoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
19 | }
20 |
21 | extension JSONEncoder: CXWrapping {
   | |- warning: extension declares a conformance of imported type 'JSONEncoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
22 |
23 |     public typealias CX = CXWrappers.JSONEncoder
/Users/admin/builder/spi-builder-workspace/Sources/CXFoundation/PropertyListEncoder.swift:23:1: warning: extension declares a conformance of imported type 'PropertyListEncoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
21 | }
22 |
23 | extension PropertyListEncoder: CXWrapping {
   | |- warning: extension declares a conformance of imported type 'PropertyListEncoder' to imported protocol 'CXWrapping'; this will not behave correctly if the owners of 'Foundation' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
24 |
25 |     public typealias CX = CXWrappers.PropertyListEncoder
/Users/admin/builder/spi-builder-workspace/Sources/CXFoundation/OperationQueue.swift:165:25: warning: class 'DelayReadyOperation' must restate inherited '@unchecked Sendable' conformance
163 |     public struct SchedulerOptions { }
164 |
165 |     private final class DelayReadyOperation: Operation, Cancellable {
    |                         `- warning: class 'DelayReadyOperation' must restate inherited '@unchecked Sendable' conformance
166 |         static var readySchedulingQueue: DispatchQueue = {
167 |             return DispatchQueue(label: "DelayReadyOperation")
error: SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/Inconsistent/BranchExpectation.swift failed with a nonzero exit code. Command line:     cd /Users/admin/builder
    builtin-SwiftPerFileCompile BranchExpectation.swift
/Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/Inconsistent/BranchExpectation.swift:6:30: error: 'Predicate' is ambiguous for type lookup in this context
 4 | public extension Expectation {
 5 |
 6 |     func toFail(_ predicate: Predicate<T>, description: String? = nil) {
   |                              `- error: 'Predicate' is ambiguous for type lookup in this context
 7 |         #if USE_COMBINE
 8 |         to(predicate, description: description)
Foundation.Predicate:2:15: note: found this candidate
1 | @available(macOS 14, iOS 17, tvOS 17, watchOS 10, *)
2 | public struct Predicate<each Input> : Sendable {
  |               `- note: found this candidate
3 |     public let expression: any StandardPredicateExpression<Bool>
4 |     public let variable: (repeat PredicateExpressions.Variable<each Input>)
Nimble.Predicate:1:15: note: found this candidate
1 | public struct Predicate<T> {
  |               `- note: found this candidate
2 |     public init(_ matcher: @escaping (Nimble.Expression<T>) throws -> Nimble.PredicateResult)
3 |     public func satisfies(_ expression: Nimble.Expression<T>) throws -> Nimble.PredicateResult
/Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/Inconsistent/BranchExpectation.swift:14:29: error: 'Predicate' is ambiguous for type lookup in this context
12 |     }
13 |
14 |     func toFix(_ predicate: Predicate<T>, description: String? = nil) {
   |                             `- error: 'Predicate' is ambiguous for type lookup in this context
15 |         #if USE_COMBINE
16 |         toNot(predicate, description: description)
Foundation.Predicate:2:15: note: found this candidate
1 | @available(macOS 14, iOS 17, tvOS 17, watchOS 10, *)
2 | public struct Predicate<each Input> : Sendable {
  |               `- note: found this candidate
3 |     public let expression: any StandardPredicateExpression<Bool>
4 |     public let variable: (repeat PredicateExpressions.Variable<each Input>)
Nimble.Predicate:1:15: note: found this candidate
1 | public struct Predicate<T> {
  |               `- note: found this candidate
2 |     public init(_ matcher: @escaping (Nimble.Expression<T>) throws -> Nimble.PredicateResult)
3 |     public func satisfies(_ expression: Nimble.Expression<T>) throws -> Nimble.PredicateResult
/Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/Inconsistent/BranchExpectation.swift:22:45: error: 'Predicate' is ambiguous for type lookup in this context
20 |     }
21 |
22 |     func toBranch(combine combinePredicate: Predicate<T>, cx cxPredicate: Predicate<T>, description: String? = nil) {
   |                                             `- error: 'Predicate' is ambiguous for type lookup in this context
23 |         #if USE_COMBINE
24 |         to(combinePredicate, description: description)
Foundation.Predicate:2:15: note: found this candidate
1 | @available(macOS 14, iOS 17, tvOS 17, watchOS 10, *)
2 | public struct Predicate<each Input> : Sendable {
  |               `- note: found this candidate
3 |     public let expression: any StandardPredicateExpression<Bool>
4 |     public let variable: (repeat PredicateExpressions.Variable<each Input>)
Nimble.Predicate:1:15: note: found this candidate
1 | public struct Predicate<T> {
  |               `- note: found this candidate
2 |     public init(_ matcher: @escaping (Nimble.Expression<T>) throws -> Nimble.PredicateResult)
3 |     public func satisfies(_ expression: Nimble.Expression<T>) throws -> Nimble.PredicateResult
/Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/Inconsistent/BranchExpectation.swift:22:75: error: 'Predicate' is ambiguous for type lookup in this context
20 |     }
21 |
22 |     func toBranch(combine combinePredicate: Predicate<T>, cx cxPredicate: Predicate<T>, description: String? = nil) {
   |                                                                           `- error: 'Predicate' is ambiguous for type lookup in this context
23 |         #if USE_COMBINE
24 |         to(combinePredicate, description: description)
Foundation.Predicate:2:15: note: found this candidate
1 | @available(macOS 14, iOS 17, tvOS 17, watchOS 10, *)
2 | public struct Predicate<each Input> : Sendable {
  |               `- note: found this candidate
3 |     public let expression: any StandardPredicateExpression<Bool>
4 |     public let variable: (repeat PredicateExpressions.Variable<each Input>)
Nimble.Predicate:1:15: note: found this candidate
1 | public struct Predicate<T> {
  |               `- note: found this candidate
2 |     public init(_ matcher: @escaping (Nimble.Expression<T>) throws -> Nimble.PredicateResult)
3 |     public func satisfies(_ expression: Nimble.Expression<T>) throws -> Nimble.PredicateResult
/Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/Inconsistent/VersioningExpectation.swift:8:26: error: 'Predicate' is ambiguous for type lookup in this context
  6 | public extension Expectation {
  7 |
  8 |     func to(_ predicate: Predicate<T>, minimalVersion: XcodeVersion, description: String? = nil) {
    |                          `- error: 'Predicate' is ambiguous for type lookup in this context
  9 |         toVersioning([minimalVersion: predicate], description: description)
 10 |     }
Foundation.Predicate:2:15: note: found this candidate
1 | @available(macOS 14, iOS 17, tvOS 17, watchOS 10, *)
2 | public struct Predicate<each Input> : Sendable {
  |               `- note: found this candidate
3 |     public let expression: any StandardPredicateExpression<Bool>
4 |     public let variable: (repeat PredicateExpressions.Variable<each Input>)
Nimble.Predicate:1:15: note: found this candidate
1 | public struct Predicate<T> {
  |               `- note: found this candidate
2 |     public init(_ matcher: @escaping (Nimble.Expression<T>) throws -> Nimble.PredicateResult)
3 |     public func satisfies(_ expression: Nimble.Expression<T>) throws -> Nimble.PredicateResult
Failed frontend command:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/@_exported.swift /Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/Common.swift /Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/Extensions/DispatchQueue+extensions.swift /Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/Extensions/Int+loop.swift /Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/Extensions/Sequence+scan.swift /Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/Extensions/Subject+send.swift /Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/Extensions/TracingSubscriber+extensions.swift -primary-file /Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/Inconsistent/BranchExpectation.swift /Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/Inconsistent/VersioningExpectation.swift /Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/Predicate.swift /Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/TestError.swift /Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/TestTimeline.swift /Users/admin/builder/spi-builder-workspace/Sources/CXTestUtility/TracingSubject.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug/CXTestUtility-t.build/Objects-normal/arm64/BranchExpectation.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug/CXTestUtility-t.build/Objects-normal/arm64/BranchExpectation.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug/CXTestUtility-t.build/Objects-normal/arm64/BranchExpectation.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug/CXTestUtility-t.build/Objects-normal/arm64/BranchExpectation.dia -target arm64-apple-macos12.0 -module-can-import-version Darwin 428.0.10 0 -disable-cross-import-overlay-search -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libPreviewsMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#PreviewsMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#SwiftMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libSwiftUIMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#SwiftUIMacros -disable-implicit-swift-modules -Xcc -fno-implicit-modules -Xcc -fno-implicit-module-maps -explicit-swift-module-map-file /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug/CXTestUtility-t.build/Objects-normal/arm64/CXTestUtility-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -I /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/PackageFrameworks -F /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExplicitPrecompiledModules -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D USE_COMBINEX -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps/_AtomicsShims.modulemap -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps/QuickObjCRuntime.modulemap -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps/CwlCatchExceptionSupport.modulemap -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps/CwlMachBadInstructionHandler.modulemap -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.build/out/SDKStatCaches.noindex/macosx27.0-26A425-80c5bbf1d171475443272936d42f90a36a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-atomics/Sources/_AtomicsShims/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/checkouts/Quick/Sources/QuickObjCRuntime/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/checkouts/CwlCatchException/Sources/CwlCatchExceptionSupport/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/checkouts/CwlPreconditionTesting/Sources/CwlMachBadInstructionHandler/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug/CXTestUtility-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug/CXTestUtility-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug/CXTestUtility-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name CXTestUtility -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug/CXTestUtility-t.build/Objects-normal/arm64/CXTestUtility_const_extract_protocols.json -disable-clang-spi -clang-target arm64-apple-macos27.0 -target-sdk-version 27.0 -target-sdk-name macosx27.0 -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug/CXTestUtility-t.build/Objects-normal/arm64/BranchExpectation.o -debug-module-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CombineX.build/Debug/CXTestUtility-t.build/Objects-normal/arm64/CXTestUtility.swiftmodule -index-unit-output-path /CombineX.build/Debug/CXTestUtility-t.build/Objects-normal/arm64/BranchExpectation.o -index-store-path /Users/admin/builder/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 macosSpm