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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Successful build of swift-prelude, reference main (a21df6), with Swift 6.1 for macOS (SPM) on 26 Apr 2025 16:11:54 UTC.

Swift 6 data race errors: 4

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/pointfreeco/swift-prelude.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/pointfreeco/swift-prelude
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at a21df6f Add `.editorconfig` for consistent code formatting (#174)
Cloned https://github.com/pointfreeco/swift-prelude.git
Revision (git rev-parse @):
a21df6f5932673f3f20d7f0ca1f8e0a7c887b3c2
SUCCESS checkout https://github.com/pointfreeco/swift-prelude.git at main
Fetching https://github.com/pointfreeco/swift-clocks from cache
Fetching https://github.com/pointfreeco/swift-concurrency-extras from cache
Fetching https://github.com/pointfreeco/xctest-dynamic-overlay from cache
Fetching https://github.com/pointfreeco/swift-dependencies from cache
Fetching https://github.com/pointfreeco/combine-schedulers from cache
Fetched https://github.com/pointfreeco/combine-schedulers from cache (0.66s)
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Computing version for https://github.com/pointfreeco/swift-dependencies
Computed https://github.com/pointfreeco/swift-dependencies at 1.0.0 (1.32s)
Computing version for https://github.com/pointfreeco/xctest-dynamic-overlay
Computed https://github.com/pointfreeco/xctest-dynamic-overlay at 1.0.2 (0.60s)
Computing version for https://github.com/pointfreeco/swift-concurrency-extras
Computed https://github.com/pointfreeco/swift-concurrency-extras at 1.0.0 (0.59s)
Computing version for https://github.com/pointfreeco/swift-clocks
Computed https://github.com/pointfreeco/swift-clocks at 1.0.0 (0.60s)
Computing version for https://github.com/pointfreeco/combine-schedulers
Computed https://github.com/pointfreeco/combine-schedulers at 1.0.0 (0.60s)
Creating working copy for https://github.com/pointfreeco/xctest-dynamic-overlay
Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 1.0.2
Creating working copy for https://github.com/pointfreeco/combine-schedulers
Working copy of https://github.com/pointfreeco/combine-schedulers resolved at 1.0.0
Creating working copy for https://github.com/pointfreeco/swift-dependencies
Working copy of https://github.com/pointfreeco/swift-dependencies resolved at 1.0.0
Creating working copy for https://github.com/pointfreeco/swift-clocks
Working copy of https://github.com/pointfreeco/swift-clocks resolved at 1.0.0
Creating working copy for https://github.com/pointfreeco/swift-concurrency-extras
Working copy of https://github.com/pointfreeco/swift-concurrency-extras resolved at 1.0.0
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
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Fetching https://github.com/pointfreeco/swift-prelude.git
[1/3298] Fetching swift-prelude
Fetched https://github.com/pointfreeco/swift-prelude.git from cache (0.90s)
Fetching https://github.com/pointfreeco/swift-dependencies from cache
Fetched https://github.com/pointfreeco/swift-dependencies from cache (0.46s)
Computing version for https://github.com/pointfreeco/swift-dependencies
Computed https://github.com/pointfreeco/swift-dependencies at 1.9.2 (1.02s)
Fetching https://github.com/pointfreeco/xctest-dynamic-overlay from cache
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Computing version for https://github.com/pointfreeco/combine-schedulers
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Creating working copy for https://github.com/pointfreeco/xctest-dynamic-overlay
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Creating working copy for https://github.com/pointfreeco/swift-concurrency-extras
Working copy of https://github.com/pointfreeco/swift-concurrency-extras resolved at 1.3.1
Creating working copy for https://github.com/swiftlang/swift-syntax
Working copy of https://github.com/swiftlang/swift-syntax resolved at 601.0.1
Creating working copy for https://github.com/pointfreeco/swift-prelude.git
Working copy of https://github.com/pointfreeco/swift-prelude.git resolved at main (a21df6f)
Creating working copy for https://github.com/pointfreeco/combine-schedulers
Working copy of https://github.com/pointfreeco/combine-schedulers resolved at 1.0.3
Creating working copy for https://github.com/pointfreeco/swift-clocks
Working copy of https://github.com/pointfreeco/swift-clocks resolved at 1.0.6
warning: '.resolve-product-dependencies': dependency 'swift-prelude' is not used by any target
Found 1 product dependencies
  - swift-dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/pointfreeco/swift-prelude.git
https://github.com/pointfreeco/swift-prelude.git
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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...
[0/16] Write sources
[15/16] Write swift-version-2F0A5646E1D333AE.txt
[17/33] Compiling ConcurrencyExtras ActorIsolated.swift
[18/33] Compiling ConcurrencyExtras UncheckedSendable.swift
[19/33] Compiling XCTestDynamicOverlay XCTIsTesting.swift
[20/33] Emitting module ConcurrencyExtras
[21/33] Compiling ConcurrencyExtras Task.swift
[22/33] Compiling ConcurrencyExtras MainSerialExecutor.swift
[23/33] Compiling ConcurrencyExtras AsyncThrowingStream.swift
[24/33] Compiling ConcurrencyExtras AsyncStream.swift
[25/33] Compiling ConcurrencyExtras LockIsolated.swift
[26/33] Emitting module XCTestDynamicOverlay
[27/33] Compiling XCTestDynamicOverlay XCTFail.swift
[28/33] Compiling XCTestDynamicOverlay Deprecations.swift
[29/33] Compiling XCTestDynamicOverlay Unimplemented.swift
[30/33] Compiling XCTestDynamicOverlay DefaultInitializable.swift
[31/33] Compiling XCTestDynamicOverlay GeneratePlaceholder.swift
[32/33] Compiling XCTestDynamicOverlay RuntimeWarnings.swift
[33/33] Compiling XCTestDynamicOverlay XCTCurrentTestCase.swift
[34/55] Compiling CombineSchedulers UIScheduler.swift
[35/55] Compiling CombineSchedulers UIKit.swift
[36/56] Compiling Clocks UnimplementedClock.swift
[37/56] Compiling CombineSchedulers AnyScheduler.swift
[38/56] Compiling CombineSchedulers Concurrency.swift
[39/56] Compiling Clocks TestClock.swift
[40/56] Compiling Clocks Timer.swift
[41/56] Compiling CombineSchedulers Timer.swift
[42/56] Compiling CombineSchedulers TestScheduler.swift
[43/56] Compiling CombineSchedulers UnimplementedScheduler.swift
[44/56] Compiling CombineSchedulers NSRecursiveLock.swift
[45/56] Compiling CombineSchedulers ImmediateScheduler.swift
[46/56] Compiling CombineSchedulers Deprecations.swift
[47/56] Compiling CombineSchedulers Lock.swift
[48/56] Emitting module CombineSchedulers
[49/56] Compiling CombineSchedulers SwiftUI.swift
[50/56] Compiling Clocks _AsyncTimerSequence.swift
[51/56] Compiling Clocks Shims.swift
[52/56] Compiling Clocks Lock.swift
[53/56] Compiling Clocks ImmediateClock.swift
[54/56] Compiling Clocks AnyClock.swift
[55/56] Emitting module Clocks
[56/56] Compiling Clocks SwiftUI.swift
[57/78] Emitting module Dependencies
[58/80] Compiling Dependencies MainRunLoop.swift
[59/80] Compiling Dependencies OpenURL.swift
[60/80] Compiling Dependencies TimeZone.swift
[61/80] Compiling Dependencies URLSession.swift
[62/80] Compiling Dependencies Deprecations.swift
[63/80] Compiling Dependencies Exports.swift
[64/80] Compiling Dependencies Context.swift
[65/80] Compiling Dependencies Date.swift
[66/80] Compiling Dependencies FireAndForget.swift
[67/80] Compiling Dependencies UUID.swift
[68/80] Compiling Dependencies WithRandomNumberGenerator.swift
[69/80] Compiling Dependencies OpenExistential.swift
[70/80] Compiling Dependencies RuntimeWarnings.swift
[71/80] Compiling Dependencies Dependency.swift
[72/80] Compiling Dependencies DependencyContext.swift
[73/80] Compiling Dependencies DependencyKey.swift
[74/80] Compiling Dependencies Locale.swift
[75/80] Compiling Dependencies MainQueue.swift
[76/80] Compiling Dependencies DependencyValues.swift
[77/80] Compiling Dependencies Calendar.swift
[78/80] Compiling Dependencies Clocks.swift
[79/80] Compiling Dependencies TypeName.swift
[80/80] Compiling Dependencies WithDependencies.swift
[81/114] Emitting module Prelude
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Comparable.swift:17:1: warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
15 | }
16 |
17 | extension Bool: Comparable {
   | |- warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
18 |   public static func < (lhs: Bool, rhs: Bool) -> Bool {
19 |     return (lhs, rhs) == (false, true)
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:28: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                    `- note: 'A' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                           `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:31: warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                       `- note: 'B' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                              `- warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/NearSemiring.swift:95:23: 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
93 |
94 |   extension CGFloat: NearSemiring {
95 |     public static var zero: CGFloat = 0.0
   |                       |- 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
96 |   }
97 | #endif
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Unit.swift:6:21: warning: static property 'empty' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 4 |
 5 | extension Unit: Monoid {
 6 |   public static var empty: Unit = unit
   |                     |- warning: static property 'empty' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                     |- note: convert 'empty' to a 'let' constant to make 'Sendable' shared state immutable
   |                     |- note: add '@MainActor' to make static property 'empty' part of global actor 'MainActor'
   |                     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 |   public static func <> (lhs: Unit, rhs: Unit) -> Unit {
[82/117] Compiling Prelude Alt.swift
[83/117] Compiling Prelude Array.swift
[84/117] Compiling Prelude Collection.swift
[85/117] Compiling Prelude CommutativeRing.swift
[86/117] Compiling Prelude NearSemiring.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/NearSemiring.swift:95:23: 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
93 |
94 |   extension CGFloat: NearSemiring {
95 |     public static var zero: CGFloat = 0.0
   |                       |- 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
96 |   }
97 | #endif
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Optional.swift:10:32: error: conflicting arguments to generic parameter 'A' ('(A) -> A' vs. '@Sendable (A) -> A')
  8 |
  9 | public func coalesce<A>(with default: @autoclosure @escaping () -> A) -> (A?) -> A {
 10 |   return optional(`default`()) <| id
    |                                `- error: conflicting arguments to generic parameter 'A' ('(A) -> A' vs. '@Sendable (A) -> A')
 11 | }
 12 |
[87/117] Compiling Prelude Never.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/NearSemiring.swift:95:23: 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
93 |
94 |   extension CGFloat: NearSemiring {
95 |     public static var zero: CGFloat = 0.0
   |                       |- 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
96 |   }
97 | #endif
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Optional.swift:10:32: error: conflicting arguments to generic parameter 'A' ('(A) -> A' vs. '@Sendable (A) -> A')
  8 |
  9 | public func coalesce<A>(with default: @autoclosure @escaping () -> A) -> (A?) -> A {
 10 |   return optional(`default`()) <| id
    |                                `- error: conflicting arguments to generic parameter 'A' ('(A) -> A' vs. '@Sendable (A) -> A')
 11 | }
 12 |
[88/117] Compiling Prelude Operators.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/NearSemiring.swift:95:23: 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
93 |
94 |   extension CGFloat: NearSemiring {
95 |     public static var zero: CGFloat = 0.0
   |                       |- 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
96 |   }
97 | #endif
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Optional.swift:10:32: error: conflicting arguments to generic parameter 'A' ('(A) -> A' vs. '@Sendable (A) -> A')
  8 |
  9 | public func coalesce<A>(with default: @autoclosure @escaping () -> A) -> (A?) -> A {
 10 |   return optional(`default`()) <| id
    |                                `- error: conflicting arguments to generic parameter 'A' ('(A) -> A' vs. '@Sendable (A) -> A')
 11 | }
 12 |
[89/117] Compiling Prelude Optional.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/NearSemiring.swift:95:23: 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
93 |
94 |   extension CGFloat: NearSemiring {
95 |     public static var zero: CGFloat = 0.0
   |                       |- 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
96 |   }
97 | #endif
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Optional.swift:10:32: error: conflicting arguments to generic parameter 'A' ('(A) -> A' vs. '@Sendable (A) -> A')
  8 |
  9 | public func coalesce<A>(with default: @autoclosure @escaping () -> A) -> (A?) -> A {
 10 |   return optional(`default`()) <| id
    |                                `- error: conflicting arguments to generic parameter 'A' ('(A) -> A' vs. '@Sendable (A) -> A')
 11 | }
 12 |
[90/117] Compiling Prelude FreeNearSemiring.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:28: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                    `- note: 'A' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                           `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:31: warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                       `- note: 'B' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                              `- warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
[91/117] Compiling Prelude Func.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:28: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                    `- note: 'A' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                           `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:31: warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                       `- note: 'B' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                              `- warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
[92/117] Compiling Prelude Function.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:28: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                    `- note: 'A' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                           `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:31: warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                       `- note: 'B' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                              `- warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
[93/117] Compiling Prelude HeytingAlgebra.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:28: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                    `- note: 'A' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                           `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:31: warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                       `- note: 'B' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                              `- warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
[94/117] Compiling Prelude Equatable.swift
[95/117] Compiling Prelude EuclideanRing.swift
[96/117] Compiling Prelude Field.swift
[97/117] Compiling Prelude Filterable.swift
[98/117] Compiling Prelude Parallel.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Parallel.swift:25:24: warning: sending 'a' risks causing data races; this is an error in the Swift 6 language mode
 23 |       await withUnsafeContinuation { continuation in
 24 |         compute { a in
 25 |           continuation.resume(returning: a)
    |                        |- warning: sending 'a' risks causing data races; this is an error in the Swift 6 language mode
    |                        `- note: task-isolated 'a' is passed as a 'sending' parameter; Uses in callee may race with later task-isolated uses
 26 |         }
 27 |       }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Parallel.swift:32:10: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 30 |
 31 |   public func run(_ callback: @escaping (A) -> ()) {
 32 |     Task {
    |          `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 33 |       await callback(self.compute())
    |                      `- note: closure captures 'self' which is accessible to code in the current task
 34 |     }
 35 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Parallel.swift:79:21: warning: sending 'f' risks causing data races; this is an error in the Swift 6 language mode
 77 |   public func apply<B>(_ f: Parallel<(A) -> B>) -> Parallel<B> {
 78 |     return .init {
 79 |       async let f = f.compute()
    |                     |- warning: sending 'f' risks causing data races; this is an error in the Swift 6 language mode
    |                     `- note: sending task-isolated 'f' into async let risks causing data races between nonisolated and task-isolated uses
 80 |       async let x = self.compute()
 81 |       return await f(x)
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Parallel.swift:80:21: warning: sending 'self' risks causing data races; this is an error in the Swift 6 language mode
 78 |     return .init {
 79 |       async let f = f.compute()
 80 |       async let x = self.compute()
    |                     |- warning: sending 'self' risks causing data races; this is an error in the Swift 6 language mode
    |                     `- note: sending task-isolated 'self' into async let risks causing data races between nonisolated and task-isolated uses
 81 |       return await f(x)
 82 |     }
[99/117] Compiling Prelude Plus.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Parallel.swift:25:24: warning: sending 'a' risks causing data races; this is an error in the Swift 6 language mode
 23 |       await withUnsafeContinuation { continuation in
 24 |         compute { a in
 25 |           continuation.resume(returning: a)
    |                        |- warning: sending 'a' risks causing data races; this is an error in the Swift 6 language mode
    |                        `- note: task-isolated 'a' is passed as a 'sending' parameter; Uses in callee may race with later task-isolated uses
 26 |         }
 27 |       }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Parallel.swift:32:10: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 30 |
 31 |   public func run(_ callback: @escaping (A) -> ()) {
 32 |     Task {
    |          `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 33 |       await callback(self.compute())
    |                      `- note: closure captures 'self' which is accessible to code in the current task
 34 |     }
 35 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Parallel.swift:79:21: warning: sending 'f' risks causing data races; this is an error in the Swift 6 language mode
 77 |   public func apply<B>(_ f: Parallel<(A) -> B>) -> Parallel<B> {
 78 |     return .init {
 79 |       async let f = f.compute()
    |                     |- warning: sending 'f' risks causing data races; this is an error in the Swift 6 language mode
    |                     `- note: sending task-isolated 'f' into async let risks causing data races between nonisolated and task-isolated uses
 80 |       async let x = self.compute()
 81 |       return await f(x)
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Parallel.swift:80:21: warning: sending 'self' risks causing data races; this is an error in the Swift 6 language mode
 78 |     return .init {
 79 |       async let f = f.compute()
 80 |       async let x = self.compute()
    |                     |- warning: sending 'self' risks causing data races; this is an error in the Swift 6 language mode
    |                     `- note: sending task-isolated 'self' into async let risks causing data races between nonisolated and task-isolated uses
 81 |       return await f(x)
 82 |     }
[100/117] Compiling Prelude PrecedenceGroups.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Parallel.swift:25:24: warning: sending 'a' risks causing data races; this is an error in the Swift 6 language mode
 23 |       await withUnsafeContinuation { continuation in
 24 |         compute { a in
 25 |           continuation.resume(returning: a)
    |                        |- warning: sending 'a' risks causing data races; this is an error in the Swift 6 language mode
    |                        `- note: task-isolated 'a' is passed as a 'sending' parameter; Uses in callee may race with later task-isolated uses
 26 |         }
 27 |       }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Parallel.swift:32:10: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 30 |
 31 |   public func run(_ callback: @escaping (A) -> ()) {
 32 |     Task {
    |          `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 33 |       await callback(self.compute())
    |                      `- note: closure captures 'self' which is accessible to code in the current task
 34 |     }
 35 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Parallel.swift:79:21: warning: sending 'f' risks causing data races; this is an error in the Swift 6 language mode
 77 |   public func apply<B>(_ f: Parallel<(A) -> B>) -> Parallel<B> {
 78 |     return .init {
 79 |       async let f = f.compute()
    |                     |- warning: sending 'f' risks causing data races; this is an error in the Swift 6 language mode
    |                     `- note: sending task-isolated 'f' into async let risks causing data races between nonisolated and task-isolated uses
 80 |       async let x = self.compute()
 81 |       return await f(x)
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Parallel.swift:80:21: warning: sending 'self' risks causing data races; this is an error in the Swift 6 language mode
 78 |     return .init {
 79 |       async let f = f.compute()
 80 |       async let x = self.compute()
    |                     |- warning: sending 'self' risks causing data races; this is an error in the Swift 6 language mode
    |                     `- note: sending task-isolated 'self' into async let risks causing data races between nonisolated and task-isolated uses
 81 |       return await f(x)
 82 |     }
[101/117] Compiling Prelude Strong.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Unit.swift:6:21: warning: static property 'empty' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 4 |
 5 | extension Unit: Monoid {
 6 |   public static var empty: Unit = unit
   |                     |- warning: static property 'empty' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                     |- note: convert 'empty' to a 'let' constant to make 'Sendable' shared state immutable
   |                     |- note: add '@MainActor' to make static property 'empty' part of global actor 'MainActor'
   |                     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 |   public static func <> (lhs: Unit, rhs: Unit) -> Unit {
[102/117] Compiling Prelude Tuple.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Unit.swift:6:21: warning: static property 'empty' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 4 |
 5 | extension Unit: Monoid {
 6 |   public static var empty: Unit = unit
   |                     |- warning: static property 'empty' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                     |- note: convert 'empty' to a 'let' constant to make 'Sendable' shared state immutable
   |                     |- note: add '@MainActor' to make static property 'empty' part of global actor 'MainActor'
   |                     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 |   public static func <> (lhs: Unit, rhs: Unit) -> Unit {
[103/117] Compiling Prelude Unit.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Unit.swift:6:21: warning: static property 'empty' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 4 |
 5 | extension Unit: Monoid {
 6 |   public static var empty: Unit = unit
   |                     |- warning: static property 'empty' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                     |- note: convert 'empty' to a 'let' constant to make 'Sendable' shared state immutable
   |                     |- note: add '@MainActor' to make static property 'empty' part of global actor 'MainActor'
   |                     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 |   public static func <> (lhs: Unit, rhs: Unit) -> Unit {
[104/117] Compiling Prelude Sequence.swift
[105/117] Compiling Prelude Set.swift
[106/117] Compiling Prelude String.swift
[107/117] Compiling Prelude Hole.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/IO.swift:30:14: warning: type 'A' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
  3 | import Foundation
  4 |
  5 | public struct IO<A> {
    |                  `- note: consider making generic parameter 'A' conform to the 'Sendable' protocol
  6 |   private let compute: () async -> A
  7 |
    :
 28 |     }
 29 |     sema.wait()
 30 |     return a.value!
    |              `- warning: type 'A' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
 31 |   }
 32 |
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/IO.swift:26:18: warning: implicit capture of 'value' requires that 'A' conforms to 'Sendable'; this is an error in the Swift 6 language mode
  3 | import Foundation
  4 |
  5 | public struct IO<A> {
    |                  `- note: consider making generic parameter 'A' conform to the 'Sendable' protocol
  6 |   private let compute: () async -> A
  7 |
    :
 24 |     Task {
 25 |       let value = await self.compute()
 26 |       a.setValue(value)
    |                  `- warning: implicit capture of 'value' requires that 'A' conforms to 'Sendable'; this is an error in the Swift 6 language mode
 27 |       sema.signal()
 28 |     }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/IO.swift:24:10: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 22 |     let a = LockIsolated<A?>(nil)
 23 |     let sema = DispatchSemaphore(value: 0)
 24 |     Task {
    |          `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 25 |       let value = await self.compute()
    |                         `- note: closure captures 'self' which is accessible to code in the current task
 26 |       a.setValue(value)
 27 |       sema.signal()
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/IO.swift:56:24: warning: sending 'a' risks causing data races; this is an error in the Swift 6 language mode
 54 |       await withUnsafeContinuation { continuation in
 55 |         callback { a in
 56 |           continuation.resume(returning: a)
    |                        |- warning: sending 'a' risks causing data races; this is an error in the Swift 6 language mode
    |                        `- note: task-isolated 'a' is passed as a 'sending' parameter; Uses in callee may race with later task-isolated uses
 57 |         }
 58 |       }
[108/117] Compiling Prelude IO.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/IO.swift:30:14: warning: type 'A' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
  3 | import Foundation
  4 |
  5 | public struct IO<A> {
    |                  `- note: consider making generic parameter 'A' conform to the 'Sendable' protocol
  6 |   private let compute: () async -> A
  7 |
    :
 28 |     }
 29 |     sema.wait()
 30 |     return a.value!
    |              `- warning: type 'A' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
 31 |   }
 32 |
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/IO.swift:26:18: warning: implicit capture of 'value' requires that 'A' conforms to 'Sendable'; this is an error in the Swift 6 language mode
  3 | import Foundation
  4 |
  5 | public struct IO<A> {
    |                  `- note: consider making generic parameter 'A' conform to the 'Sendable' protocol
  6 |   private let compute: () async -> A
  7 |
    :
 24 |     Task {
 25 |       let value = await self.compute()
 26 |       a.setValue(value)
    |                  `- warning: implicit capture of 'value' requires that 'A' conforms to 'Sendable'; this is an error in the Swift 6 language mode
 27 |       sema.signal()
 28 |     }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/IO.swift:24:10: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 22 |     let a = LockIsolated<A?>(nil)
 23 |     let sema = DispatchSemaphore(value: 0)
 24 |     Task {
    |          `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 25 |       let value = await self.compute()
    |                         `- note: closure captures 'self' which is accessible to code in the current task
 26 |       a.setValue(value)
 27 |       sema.signal()
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/IO.swift:56:24: warning: sending 'a' risks causing data races; this is an error in the Swift 6 language mode
 54 |       await withUnsafeContinuation { continuation in
 55 |         callback { a in
 56 |           continuation.resume(returning: a)
    |                        |- warning: sending 'a' risks causing data races; this is an error in the Swift 6 language mode
    |                        `- note: task-isolated 'a' is passed as a 'sending' parameter; Uses in callee may race with later task-isolated uses
 57 |         }
 58 |       }
[109/117] Compiling Prelude KeyPath.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/IO.swift:30:14: warning: type 'A' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
  3 | import Foundation
  4 |
  5 | public struct IO<A> {
    |                  `- note: consider making generic parameter 'A' conform to the 'Sendable' protocol
  6 |   private let compute: () async -> A
  7 |
    :
 28 |     }
 29 |     sema.wait()
 30 |     return a.value!
    |              `- warning: type 'A' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
 31 |   }
 32 |
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/IO.swift:26:18: warning: implicit capture of 'value' requires that 'A' conforms to 'Sendable'; this is an error in the Swift 6 language mode
  3 | import Foundation
  4 |
  5 | public struct IO<A> {
    |                  `- note: consider making generic parameter 'A' conform to the 'Sendable' protocol
  6 |   private let compute: () async -> A
  7 |
    :
 24 |     Task {
 25 |       let value = await self.compute()
 26 |       a.setValue(value)
    |                  `- warning: implicit capture of 'value' requires that 'A' conforms to 'Sendable'; this is an error in the Swift 6 language mode
 27 |       sema.signal()
 28 |     }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/IO.swift:24:10: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 22 |     let a = LockIsolated<A?>(nil)
 23 |     let sema = DispatchSemaphore(value: 0)
 24 |     Task {
    |          `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 25 |       let value = await self.compute()
    |                         `- note: closure captures 'self' which is accessible to code in the current task
 26 |       a.setValue(value)
 27 |       sema.signal()
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/IO.swift:56:24: warning: sending 'a' risks causing data races; this is an error in the Swift 6 language mode
 54 |       await withUnsafeContinuation { continuation in
 55 |         callback { a in
 56 |           continuation.resume(returning: a)
    |                        |- warning: sending 'a' risks causing data races; this is an error in the Swift 6 language mode
    |                        `- note: task-isolated 'a' is passed as a 'sending' parameter; Uses in callee may race with later task-isolated uses
 57 |         }
 58 |       }
[110/117] Compiling Prelude Monoid.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/IO.swift:30:14: warning: type 'A' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
  3 | import Foundation
  4 |
  5 | public struct IO<A> {
    |                  `- note: consider making generic parameter 'A' conform to the 'Sendable' protocol
  6 |   private let compute: () async -> A
  7 |
    :
 28 |     }
 29 |     sema.wait()
 30 |     return a.value!
    |              `- warning: type 'A' does not conform to the 'Sendable' protocol; this is an error in the Swift 6 language mode
 31 |   }
 32 |
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/IO.swift:26:18: warning: implicit capture of 'value' requires that 'A' conforms to 'Sendable'; this is an error in the Swift 6 language mode
  3 | import Foundation
  4 |
  5 | public struct IO<A> {
    |                  `- note: consider making generic parameter 'A' conform to the 'Sendable' protocol
  6 |   private let compute: () async -> A
  7 |
    :
 24 |     Task {
 25 |       let value = await self.compute()
 26 |       a.setValue(value)
    |                  `- warning: implicit capture of 'value' requires that 'A' conforms to 'Sendable'; this is an error in the Swift 6 language mode
 27 |       sema.signal()
 28 |     }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/IO.swift:24:10: warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 22 |     let a = LockIsolated<A?>(nil)
 23 |     let sema = DispatchSemaphore(value: 0)
 24 |     Task {
    |          `- warning: passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure; this is an error in the Swift 6 language mode
 25 |       let value = await self.compute()
    |                         `- note: closure captures 'self' which is accessible to code in the current task
 26 |       a.setValue(value)
 27 |       sema.signal()
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/IO.swift:56:24: warning: sending 'a' risks causing data races; this is an error in the Swift 6 language mode
 54 |       await withUnsafeContinuation { continuation in
 55 |         callback { a in
 56 |           continuation.resume(returning: a)
    |                        |- warning: sending 'a' risks causing data races; this is an error in the Swift 6 language mode
    |                        `- note: task-isolated 'a' is passed as a 'sending' parameter; Uses in callee may race with later task-isolated uses
 57 |         }
 58 |       }
[111/117] Compiling Prelude Ring.swift
[112/117] Compiling Prelude Semigroup.swift
[113/117] Compiling Prelude Semiring.swift
[114/117] Compiling Prelude Comparable.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Comparable.swift:17:1: warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
15 | }
16 |
17 | extension Bool: Comparable {
   | |- warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
18 |   public static func < (lhs: Bool, rhs: Bool) -> Bool {
19 |     return (lhs, rhs) == (false, true)
[115/117] Compiling Prelude Comparator.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Comparable.swift:17:1: warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
15 | }
16 |
17 | extension Bool: Comparable {
   | |- warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
18 |   public static func < (lhs: Bool, rhs: Bool) -> Bool {
19 |     return (lhs, rhs) == (false, true)
[116/117] Compiling Prelude Curry.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Comparable.swift:17:1: warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
15 | }
16 |
17 | extension Bool: Comparable {
   | |- warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
18 |   public static func < (lhs: Bool, rhs: Bool) -> Bool {
19 |     return (lhs, rhs) == (false, true)
[117/117] Compiling Prelude Endo.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Comparable.swift:17:1: warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
15 | }
16 |
17 | extension Bool: Comparable {
   | |- warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
18 |   public static func < (lhs: Bool, rhs: Bool) -> Bool {
19 |     return (lhs, rhs) == (false, true)
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-2F0A5646E1D333AE.txt
[2/18] Compiling XCTestDynamicOverlay XCTIsTesting.swift
[3/18] Compiling ConcurrencyExtras AsyncThrowingStream.swift
[4/18] Compiling ConcurrencyExtras UncheckedSendable.swift
[5/18] Compiling ConcurrencyExtras Task.swift
[6/18] Compiling ConcurrencyExtras MainSerialExecutor.swift
[7/18] Compiling ConcurrencyExtras LockIsolated.swift
[8/18] Compiling ConcurrencyExtras ActorIsolated.swift
[9/18] Emitting module ConcurrencyExtras
[10/18] Compiling ConcurrencyExtras AsyncStream.swift
[11/18] Compiling XCTestDynamicOverlay Unimplemented.swift
[12/18] Compiling XCTestDynamicOverlay RuntimeWarnings.swift
[13/18] Compiling XCTestDynamicOverlay XCTCurrentTestCase.swift
[14/18] Compiling XCTestDynamicOverlay Deprecations.swift
[15/18] Compiling XCTestDynamicOverlay DefaultInitializable.swift
[16/18] Compiling XCTestDynamicOverlay GeneratePlaceholder.swift
[17/18] Emitting module XCTestDynamicOverlay
[18/18] Compiling XCTestDynamicOverlay XCTFail.swift
[19/40] Compiling CombineSchedulers UIKit.swift
[20/40] Compiling CombineSchedulers UIScheduler.swift
[21/41] Compiling Clocks ImmediateClock.swift
[22/41] Compiling Clocks Timer.swift
[23/41] Compiling Clocks SwiftUI.swift
[24/41] Compiling Clocks UnimplementedClock.swift
[25/41] Compiling Clocks Shims.swift
[26/41] Compiling Clocks _AsyncTimerSequence.swift
[27/41] Emitting module Clocks
[28/41] Compiling Clocks TestClock.swift
[29/41] Compiling Clocks AnyClock.swift
[30/41] Compiling Clocks Lock.swift
[31/41] Compiling CombineSchedulers TestScheduler.swift
[32/41] Compiling CombineSchedulers NSRecursiveLock.swift
[33/41] Compiling CombineSchedulers Lock.swift
[34/41] Compiling CombineSchedulers SwiftUI.swift
[35/41] Compiling CombineSchedulers ImmediateScheduler.swift
[36/41] Compiling CombineSchedulers Deprecations.swift
[37/41] Compiling CombineSchedulers AnyScheduler.swift
[38/41] Compiling CombineSchedulers Concurrency.swift
[39/41] Emitting module CombineSchedulers
[40/41] Compiling CombineSchedulers Timer.swift
[41/41] Compiling CombineSchedulers UnimplementedScheduler.swift
[42/63] Compiling Dependencies Context.swift
[43/63] Compiling Dependencies Date.swift
[44/63] Compiling Dependencies FireAndForget.swift
[45/63] Compiling Dependencies Deprecations.swift
[46/63] Compiling Dependencies Exports.swift
[47/65] Compiling Dependencies MainRunLoop.swift
[48/65] Compiling Dependencies OpenURL.swift
[49/65] Compiling Dependencies UUID.swift
[50/65] Compiling Dependencies WithRandomNumberGenerator.swift
[51/65] Compiling Dependencies Locale.swift
[52/65] Compiling Dependencies MainQueue.swift
[53/65] Compiling Dependencies TimeZone.swift
[54/65] Compiling Dependencies URLSession.swift
[55/65] Emitting module Dependencies
[56/65] Compiling Dependencies DependencyValues.swift
[57/65] Compiling Dependencies Calendar.swift
[58/65] Compiling Dependencies Clocks.swift
[59/65] Compiling Dependencies OpenExistential.swift
[60/65] Compiling Dependencies RuntimeWarnings.swift
[61/65] Compiling Dependencies Dependency.swift
[62/65] Compiling Dependencies DependencyContext.swift
[63/65] Compiling Dependencies DependencyKey.swift
[64/65] Compiling Dependencies TypeName.swift
[65/65] Compiling Dependencies WithDependencies.swift
[66/99] Emitting module Prelude
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Comparable.swift:17:1: warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
15 | }
16 |
17 | extension Bool: Comparable {
   | |- warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
18 |   public static func < (lhs: Bool, rhs: Bool) -> Bool {
19 |     return (lhs, rhs) == (false, true)
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:28: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                    `- note: 'A' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                           `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:31: warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                       `- note: 'B' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                              `- warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
[67/102] Compiling Prelude Ring.swift
[68/102] Compiling Prelude Semigroup.swift
[69/102] Compiling Prelude Semiring.swift
[70/102] Compiling Prelude FreeNearSemiring.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:28: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                    `- note: 'A' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                           `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:31: warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                       `- note: 'B' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                              `- warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
[71/102] Compiling Prelude Func.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:28: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                    `- note: 'A' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                           `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:31: warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                       `- note: 'B' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                              `- warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
[72/102] Compiling Prelude Function.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:28: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                    `- note: 'A' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                           `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:31: warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                       `- note: 'B' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                              `- warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
[73/102] Compiling Prelude HeytingAlgebra.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:28: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                    `- note: 'A' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                           `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Func.swift:39:31: warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
  1 |
  2 | public struct Func<A, B> {
    |                       `- note: 'B' previously declared here
  3 |   public let call: (A) -> B
  4 |
    :
 37 |   }
 38 |
 39 |   public static func >¢< <A, B, C>(f: @escaping (B) -> A, g: Func<A, C>) -> Func<B, C> {
    |                              `- warning: generic parameter 'B' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 40 |     return g.contramap(f)
 41 |   }
[74/102] Compiling Prelude Equatable.swift
[75/102] Compiling Prelude EuclideanRing.swift
[76/102] Compiling Prelude Field.swift
[77/102] Compiling Prelude Filterable.swift
[78/102] Compiling Prelude Alt.swift
[79/102] Compiling Prelude Array.swift
[80/102] Compiling Prelude Collection.swift
[81/102] Compiling Prelude CommutativeRing.swift
[82/102] Compiling Prelude NearSemiring.swift
[83/102] Compiling Prelude Never.swift
[84/102] Compiling Prelude Operators.swift
[85/102] Compiling Prelude Optional.swift
[86/102] Compiling Prelude Sequence.swift
[87/102] Compiling Prelude Set.swift
[88/102] Compiling Prelude String.swift
[89/102] Compiling Prelude Parallel.swift
[90/102] Compiling Prelude Plus.swift
[91/102] Compiling Prelude PrecedenceGroups.swift
[92/102] Compiling Prelude Hole.swift
[93/102] Compiling Prelude IO.swift
[94/102] Compiling Prelude KeyPath.swift
[95/102] Compiling Prelude Monoid.swift
[96/102] Compiling Prelude Strong.swift
[97/102] Compiling Prelude Tuple.swift
[98/102] Compiling Prelude Unit.swift
[99/102] Compiling Prelude Comparable.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Comparable.swift:17:1: warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
15 | }
16 |
17 | extension Bool: Comparable {
   | |- warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
18 |   public static func < (lhs: Bool, rhs: Bool) -> Bool {
19 |     return (lhs, rhs) == (false, true)
[100/102] Compiling Prelude Comparator.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Comparable.swift:17:1: warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
15 | }
16 |
17 | extension Bool: Comparable {
   | |- warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
18 |   public static func < (lhs: Bool, rhs: Bool) -> Bool {
19 |     return (lhs, rhs) == (false, true)
[101/102] Compiling Prelude Curry.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Comparable.swift:17:1: warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
15 | }
16 |
17 | extension Bool: Comparable {
   | |- warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
18 |   public static func < (lhs: Bool, rhs: Bool) -> Bool {
19 |     return (lhs, rhs) == (false, true)
[102/102] Compiling Prelude Endo.swift
/Users/admin/builder/spi-builder-workspace/Sources/Prelude/Comparable.swift:17:1: warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
15 | }
16 |
17 | extension Bool: Comparable {
   | |- warning: extension declares a conformance of imported type 'Bool' to imported protocol 'Comparable'; this will not behave correctly if the owners of 'Swift' introduce this conformance in the future
   | `- note: add '@retroactive' to silence this warning
18 |   public static func < (lhs: Bool, rhs: Bool) -> Bool {
19 |     return (lhs, rhs) == (false, true)
[103/117] Compiling Reader Reader.swift
/Users/admin/builder/spi-builder-workspace/Sources/Reader/Reader.swift:18:28: warning: generic parameter 'R' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 1 | import Prelude
 2 |
 3 | public struct Reader<R, A> {
   |                      `- note: 'R' previously declared here
 4 |   public let runReader: (R) -> A
 5 |
   :
16 |   }
17 |
18 |   public static func <¢> <R, A, B> (f: @escaping (A) -> B, reader: Reader<R, A>) -> Reader<R, B> {
   |                           `- warning: generic parameter 'R' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
19 |     return reader.map(f)
20 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Reader/Reader.swift:18:31: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 1 | import Prelude
 2 |
 3 | public struct Reader<R, A> {
   |                         `- note: 'A' previously declared here
 4 |   public let runReader: (R) -> A
 5 |
   :
16 |   }
17 |
18 |   public static func <¢> <R, A, B> (f: @escaping (A) -> B, reader: Reader<R, A>) -> Reader<R, B> {
   |                              `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
19 |     return reader.map(f)
20 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Reader/Reader.swift:32:27: warning: generic parameter 'R' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 1 | import Prelude
 2 |
 3 | public struct Reader<R, A> {
   |                      `- note: 'R' previously declared here
 4 |   public let runReader: (R) -> A
 5 |
   :
30 |   }
31 |
32 |   public static func <*> <R, A, B> (f: Reader<R, (A) -> B>, reader: Reader<R, A>) -> Reader<R, B> {
   |                           `- warning: generic parameter 'R' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
33 |     return reader.apply(f)
34 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Reader/Reader.swift:32:30: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 1 | import Prelude
 2 |
 3 | public struct Reader<R, A> {
   |                         `- note: 'A' previously declared here
 4 |   public let runReader: (R) -> A
 5 |
   :
30 |   }
31 |
32 |   public static func <*> <R, A, B> (f: Reader<R, (A) -> B>, reader: Reader<R, A>) -> Reader<R, B> {
   |                              `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
33 |     return reader.apply(f)
34 |   }
[104/117] Emitting module Reader
/Users/admin/builder/spi-builder-workspace/Sources/Reader/Reader.swift:18:28: warning: generic parameter 'R' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 1 | import Prelude
 2 |
 3 | public struct Reader<R, A> {
   |                      `- note: 'R' previously declared here
 4 |   public let runReader: (R) -> A
 5 |
   :
16 |   }
17 |
18 |   public static func <¢> <R, A, B> (f: @escaping (A) -> B, reader: Reader<R, A>) -> Reader<R, B> {
   |                           `- warning: generic parameter 'R' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
19 |     return reader.map(f)
20 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Reader/Reader.swift:18:31: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 1 | import Prelude
 2 |
 3 | public struct Reader<R, A> {
   |                         `- note: 'A' previously declared here
 4 |   public let runReader: (R) -> A
 5 |
   :
16 |   }
17 |
18 |   public static func <¢> <R, A, B> (f: @escaping (A) -> B, reader: Reader<R, A>) -> Reader<R, B> {
   |                              `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
19 |     return reader.map(f)
20 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Reader/Reader.swift:32:27: warning: generic parameter 'R' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 1 | import Prelude
 2 |
 3 | public struct Reader<R, A> {
   |                      `- note: 'R' previously declared here
 4 |   public let runReader: (R) -> A
 5 |
   :
30 |   }
31 |
32 |   public static func <*> <R, A, B> (f: Reader<R, (A) -> B>, reader: Reader<R, A>) -> Reader<R, B> {
   |                           `- warning: generic parameter 'R' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
33 |     return reader.apply(f)
34 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Reader/Reader.swift:32:30: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 1 | import Prelude
 2 |
 3 | public struct Reader<R, A> {
   |                         `- note: 'A' previously declared here
 4 |   public let runReader: (R) -> A
 5 |
   :
30 |   }
31 |
32 |   public static func <*> <R, A, B> (f: Reader<R, (A) -> B>, reader: Reader<R, A>) -> Reader<R, B> {
   |                              `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
33 |     return reader.apply(f)
34 |   }
[105/117] Compiling Writer Writer.swift
/Users/admin/builder/spi-builder-workspace/Sources/Writer/Writer.swift:24:28: warning: generic parameter 'W' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 1 | import Prelude
 2 |
 3 | public struct Writer<W: Monoid, A> {
   |                      `- note: 'W' previously declared here
 4 |   let a: A
 5 |   let w: W
   :
22 |   }
23 |
24 |   public static func <¢> <W, A, B> (f: @escaping (A) -> B, writer: Writer<W, A>) -> Writer<W, B> {
   |                           `- warning: generic parameter 'W' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
25 |     return writer.map(f)
26 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Writer/Writer.swift:24:31: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 1 | import Prelude
 2 |
 3 | public struct Writer<W: Monoid, A> {
   |                                 `- note: 'A' previously declared here
 4 |   let a: A
 5 |   let w: W
   :
22 |   }
23 |
24 |   public static func <¢> <W, A, B> (f: @escaping (A) -> B, writer: Writer<W, A>) -> Writer<W, B> {
   |                              `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
25 |     return writer.map(f)
26 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Writer/Writer.swift:36:27: warning: generic parameter 'W' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 1 | import Prelude
 2 |
 3 | public struct Writer<W: Monoid, A> {
   |                      `- note: 'W' previously declared here
 4 |   let a: A
 5 |   let w: W
   :
34 |   }
35 |
36 |   public static func <*> <W, A, B> (f: Writer<W, (A) -> B>, writer: Writer<W, A>) -> Writer<W, B> {
   |                           `- warning: generic parameter 'W' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
37 |     return writer.apply(f)
38 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Writer/Writer.swift:36:30: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 1 | import Prelude
 2 |
 3 | public struct Writer<W: Monoid, A> {
   |                                 `- note: 'A' previously declared here
 4 |   let a: A
 5 |   let w: W
   :
34 |   }
35 |
36 |   public static func <*> <W, A, B> (f: Writer<W, (A) -> B>, writer: Writer<W, A>) -> Writer<W, B> {
   |                              `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
37 |     return writer.apply(f)
38 |   }
[106/117] Emitting module Writer
/Users/admin/builder/spi-builder-workspace/Sources/Writer/Writer.swift:24:28: warning: generic parameter 'W' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 1 | import Prelude
 2 |
 3 | public struct Writer<W: Monoid, A> {
   |                      `- note: 'W' previously declared here
 4 |   let a: A
 5 |   let w: W
   :
22 |   }
23 |
24 |   public static func <¢> <W, A, B> (f: @escaping (A) -> B, writer: Writer<W, A>) -> Writer<W, B> {
   |                           `- warning: generic parameter 'W' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
25 |     return writer.map(f)
26 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Writer/Writer.swift:24:31: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 1 | import Prelude
 2 |
 3 | public struct Writer<W: Monoid, A> {
   |                                 `- note: 'A' previously declared here
 4 |   let a: A
 5 |   let w: W
   :
22 |   }
23 |
24 |   public static func <¢> <W, A, B> (f: @escaping (A) -> B, writer: Writer<W, A>) -> Writer<W, B> {
   |                              `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
25 |     return writer.map(f)
26 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Writer/Writer.swift:36:27: warning: generic parameter 'W' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 1 | import Prelude
 2 |
 3 | public struct Writer<W: Monoid, A> {
   |                      `- note: 'W' previously declared here
 4 |   let a: A
 5 |   let w: W
   :
34 |   }
35 |
36 |   public static func <*> <W, A, B> (f: Writer<W, (A) -> B>, writer: Writer<W, A>) -> Writer<W, B> {
   |                           `- warning: generic parameter 'W' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
37 |     return writer.apply(f)
38 |   }
/Users/admin/builder/spi-builder-workspace/Sources/Writer/Writer.swift:36:30: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 1 | import Prelude
 2 |
 3 | public struct Writer<W: Monoid, A> {
   |                                 `- note: 'A' previously declared here
 4 |   let a: A
 5 |   let w: W
   :
34 |   }
35 |
36 |   public static func <*> <W, A, B> (f: Writer<W, (A) -> B>, writer: Writer<W, A>) -> Writer<W, B> {
   |                              `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
37 |     return writer.apply(f)
38 |   }
[107/117] Emitting module Either
[108/117] Compiling State State.swift
[109/117] Emitting module State
[110/117] Emitting module ValidationSemigroup
[111/117] Compiling ValidationSemigroup ValidationSemigroup.swift
[112/117] Emitting module Tuple
[113/117] Compiling Tuple Tuple.swift
[114/117] Compiling Either Nested.swift
[115/117] Compiling Either Choice.swift
[116/117] Compiling Either EitherIO.swift
[117/117] Compiling Either Either.swift
[118/133] Compiling Frp UIKit.swift
[119/133] Compiling Frp ValidationSemigroup.swift
[120/133] Compiling Frp Event.swift
[121/133] Emitting module Frp
[122/133] Emitting module ValidationNearSemiring
[123/133] Compiling ValidationNearSemiring ValidationNearSemiring.swift
[124/133] Emitting module Optics
[125/134] Compiling Optics KeyPath.swift
[126/134] Compiling Optics Review.swift
[127/134] Compiling Optics Prism.swift
[128/134] Compiling Optics Getter.swift
[129/134] Compiling Optics Index.swift
[130/134] Compiling Optics Forget.swift
[131/134] Compiling Optics Star.swift
[132/134] Compiling Optics Fold.swift
[133/134] Compiling Optics Setter.swift
[134/134] Compiling Optics Traversal.swift
Build complete! (8.72s)
warning: 'spi-builder-workspace': found 33 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testChoicePrisms.Unsuccessful-some-traversal.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testDisjOver.1.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testChoicePrisms.Successful nested right-hand traversal.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testTraversed.Some traversal.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testConjOver.1.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testTraversed.Array traversal.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testChoicePrisms.Successful-some-traversal.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testAppendOver.1.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testChoicePrisms.Successful-left-hand-traversal.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testOver.1.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testChoicePrisms.Successful left-hand traversal.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testChoicePrisms.Successful-nested-right-hand-traversal.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testLots.Nested-indexed-choice.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testSubOver.1.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testChoicePrisms.Successful-nested-left-hand-traversal.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testMulOver.1.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testChoicePrisms.Unsuccessful some traversal.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testTraversed.None-traversal.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testChoicePrisms.Unsuccessful-right-hand-traversal.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testLots.Nested choice prismatic traversals.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testLots.Nested-choice-prismatic-traversals.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testChoicePrisms.Unsuccessful right-hand traversal.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testLots.Nested indexed choice.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testTraversed.None traversal.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testAddOver.1.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testTraversed.Some-traversal.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testSet.1.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testChoicePrisms.Successful nested left-hand traversal.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testStrongPrisms.1.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testTraversed.Array-traversal.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testIx.1.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testDivOver.1.txt
    /Users/admin/builder/spi-builder-workspace/Tests/OpticsTests/__Snapshots__/OpticsTests/testChoicePrisms.Successful some traversal.txt
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-dependencies",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/pointfreeco/swift-dependencies"
    }
  ],
  "manifest_display_name" : "swift-prelude",
  "name" : "swift-prelude",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "Either",
      "targets" : [
        "Either"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Frp",
      "targets" : [
        "Frp"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Optics",
      "targets" : [
        "Optics"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Prelude",
      "targets" : [
        "Prelude"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Reader",
      "targets" : [
        "Reader"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "State",
      "targets" : [
        "State"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Tuple",
      "targets" : [
        "Tuple"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "ValidationSemigroup",
      "targets" : [
        "ValidationSemigroup"
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Done.