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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

Failed to build swift-prelude, reference main (a21df6), with Swift 6.0 for macOS (SPM) on 28 Nov 2024 07:00:34 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures

Build Log

========================================
RunAll
========================================
Builder version: 4.58.0
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-concurrency-extras
Fetching https://github.com/pointfreeco/combine-schedulers
Fetching https://github.com/pointfreeco/xctest-dynamic-overlay
Fetching https://github.com/pointfreeco/swift-dependencies
Fetching https://github.com/pointfreeco/swift-clocks
[1/773] Fetching swift-concurrency-extras
[133/2051] Fetching swift-concurrency-extras, swift-clocks
[197/4398] Fetching swift-concurrency-extras, swift-clocks, combine-schedulers
[462/9408] Fetching swift-concurrency-extras, swift-clocks, combine-schedulers, xctest-dynamic-overlay
[463/14943] Fetching swift-concurrency-extras, swift-clocks, combine-schedulers, xctest-dynamic-overlay, swift-dependencies
Fetched https://github.com/pointfreeco/swift-dependencies from cache (1.72s)
Computing version for https://github.com/pointfreeco/swift-dependencies
Fetched https://github.com/pointfreeco/combine-schedulers from cache (1.72s)
Fetched https://github.com/pointfreeco/swift-concurrency-extras from cache (1.72s)
Fetched https://github.com/pointfreeco/swift-clocks from cache (1.72s)
Fetched https://github.com/pointfreeco/xctest-dynamic-overlay from cache (1.72s)
Computed https://github.com/pointfreeco/swift-dependencies at 1.0.0 (0.59s)
Computing version for https://github.com/pointfreeco/xctest-dynamic-overlay
Computed https://github.com/pointfreeco/xctest-dynamic-overlay at 1.0.2 (0.58s)
Computing version for https://github.com/pointfreeco/swift-concurrency-extras
Computed https://github.com/pointfreeco/swift-concurrency-extras at 1.0.0 (0.57s)
Computing version for https://github.com/pointfreeco/swift-clocks
Computed https://github.com/pointfreeco/swift-clocks at 1.0.0 (0.56s)
Computing version for https://github.com/pointfreeco/combine-schedulers
Computed https://github.com/pointfreeco/combine-schedulers at 1.0.0 (0.55s)
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
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-dependencies
Working copy of https://github.com/pointfreeco/swift-dependencies resolved at 1.0.0
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/xctest-dynamic-overlay
Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 1.0.2
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "dependencies": [
    {
      "identity": "swift-prelude",
      "name": "swift-prelude",
      "url": "https://github.com/pointfreeco/swift-prelude.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-prelude",
      "dependencies": [
        {
          "identity": "swift-dependencies",
          "name": "swift-dependencies",
          "url": "https://github.com/pointfreeco/swift-dependencies",
          "version": "1.6.1",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-dependencies",
          "dependencies": [
            {
              "identity": "combine-schedulers",
              "name": "combine-schedulers",
              "url": "https://github.com/pointfreeco/combine-schedulers",
              "version": "1.0.2",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/combine-schedulers",
              "dependencies": [
                {
                  "identity": "swift-concurrency-extras",
                  "name": "swift-concurrency-extras",
                  "url": "https://github.com/pointfreeco/swift-concurrency-extras",
                  "version": "1.3.0",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-concurrency-extras",
                  "dependencies": [
                  ]
                },
                {
                  "identity": "xctest-dynamic-overlay",
                  "name": "xctest-dynamic-overlay",
                  "url": "https://github.com/pointfreeco/xctest-dynamic-overlay",
                  "version": "1.4.3",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/xctest-dynamic-overlay",
                  "dependencies": [
                  ]
                }
              ]
            },
            {
              "identity": "swift-clocks",
              "name": "swift-clocks",
              "url": "https://github.com/pointfreeco/swift-clocks",
              "version": "1.0.5",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-clocks",
              "dependencies": [
                {
                  "identity": "swift-concurrency-extras",
                  "name": "swift-concurrency-extras",
                  "url": "https://github.com/pointfreeco/swift-concurrency-extras",
                  "version": "1.3.0",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-concurrency-extras",
                  "dependencies": [
                  ]
                },
                {
                  "identity": "xctest-dynamic-overlay",
                  "name": "xctest-dynamic-overlay",
                  "url": "https://github.com/pointfreeco/xctest-dynamic-overlay",
                  "version": "1.4.3",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/xctest-dynamic-overlay",
                  "dependencies": [
                  ]
                }
              ]
            },
            {
              "identity": "swift-concurrency-extras",
              "name": "swift-concurrency-extras",
              "url": "https://github.com/pointfreeco/swift-concurrency-extras",
              "version": "1.3.0",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-concurrency-extras",
              "dependencies": [
              ]
            },
            {
              "identity": "xctest-dynamic-overlay",
              "name": "xctest-dynamic-overlay",
              "url": "https://github.com/pointfreeco/xctest-dynamic-overlay",
              "version": "1.4.3",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/xctest-dynamic-overlay",
              "dependencies": [
              ]
            },
            {
              "identity": "swift-syntax",
              "name": "swift-syntax",
              "url": "https://github.com/swiftlang/swift-syntax",
              "version": "600.0.1",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-syntax",
              "dependencies": [
              ]
            }
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/pointfreeco/swift-prelude.git
[1/3294] Fetching swift-prelude
Fetched https://github.com/pointfreeco/swift-prelude.git from cache (1.97s)
Fetching https://github.com/pointfreeco/swift-dependencies from cache
Fetched https://github.com/pointfreeco/swift-dependencies from cache (0.47s)
Computing version for https://github.com/pointfreeco/swift-dependencies
Computed https://github.com/pointfreeco/swift-dependencies at 1.6.1 (0.49s)
Fetching https://github.com/swiftlang/swift-syntax
Fetching https://github.com/pointfreeco/swift-concurrency-extras from cache
Fetching https://github.com/pointfreeco/combine-schedulers from cache
Fetching https://github.com/pointfreeco/swift-clocks from cache
Fetching https://github.com/pointfreeco/xctest-dynamic-overlay from cache
Fetched https://github.com/pointfreeco/xctest-dynamic-overlay from cache (0.50s)
Fetched https://github.com/pointfreeco/combine-schedulers from cache (0.50s)
Fetched https://github.com/pointfreeco/swift-clocks from cache (0.50s)
Fetched https://github.com/pointfreeco/swift-concurrency-extras from cache (0.50s)
[1/66683] Fetching swift-syntax
Fetched https://github.com/swiftlang/swift-syntax from cache (3.53s)
Computing version for https://github.com/pointfreeco/combine-schedulers
warning: 'combine-schedulers': /Package@swift-6.0.swift:5:15: warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)'
 3 | import PackageDescription
 4 |
 5 | let package = Package(
   |               |- warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)'
   |               `- note: use 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)' instead
 6 |   name: "combine-schedulers",
 7 |   platforms: [
Computed https://github.com/pointfreeco/combine-schedulers at 1.0.2 (0.48s)
Computing version for https://github.com/pointfreeco/swift-clocks
warning: 'swift-clocks': /Package@swift-6.0.swift:5:15: warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)'
 3 | import PackageDescription
 4 |
 5 | let package = Package(
   |               |- warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)'
   |               `- note: use 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)' instead
 6 |   name: "swift-clocks",
 7 |   // NB: While the `Clock` protocol is iOS 16+, etc., the package should support earlier platforms
Computed https://github.com/pointfreeco/swift-clocks at 1.0.5 (0.46s)
Computing version for https://github.com/pointfreeco/xctest-dynamic-overlay
Computed https://github.com/pointfreeco/xctest-dynamic-overlay at 1.4.3 (0.46s)
Computing version for https://github.com/pointfreeco/swift-concurrency-extras
Computed https://github.com/pointfreeco/swift-concurrency-extras at 1.3.0 (0.46s)
Computing version for https://github.com/swiftlang/swift-syntax
Computed https://github.com/swiftlang/swift-syntax at 600.0.1 (0.66s)
Creating working copy for https://github.com/pointfreeco/swift-dependencies
Working copy of https://github.com/pointfreeco/swift-dependencies resolved at 1.6.1
Creating working copy for https://github.com/swiftlang/swift-syntax
Working copy of https://github.com/swiftlang/swift-syntax resolved at 600.0.1
Creating working copy for https://github.com/pointfreeco/swift-clocks
Working copy of https://github.com/pointfreeco/swift-clocks resolved at 1.0.5
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/swift-concurrency-extras
Working copy of https://github.com/pointfreeco/swift-concurrency-extras resolved at 1.3.0
Creating working copy for https://github.com/pointfreeco/combine-schedulers
Working copy of https://github.com/pointfreeco/combine-schedulers resolved at 1.0.2
Creating working copy for https://github.com/pointfreeco/xctest-dynamic-overlay
Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 1.4.3
warning: 'combine-schedulers': /Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/combine-schedulers/Package@swift-6.0.swift:5:15: warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)'
 3 | import PackageDescription
 4 |
 5 | let package = Package(
   |               |- warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)'
   |               `- note: use 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)' instead
 6 |   name: "combine-schedulers",
 7 |   platforms: [
warning: 'swift-clocks': /Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-clocks/Package@swift-6.0.swift:5:15: warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)'
 3 | import PackageDescription
 4 |
 5 | let package = Package(
   |               |- warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)'
   |               `- note: use 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)' instead
 6 |   name: "swift-clocks",
 7 |   // NB: While the `Clock` protocol is iOS 16+, etc., the package should support earlier platforms
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:             6.0
Building package at path:  $PWD
https://github.com/pointfreeco/swift-prelude.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.1.0.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--7754E27361AE5C74.txt
[17/33] Compiling XCTestDynamicOverlay XCTIsTesting.swift
[18/33] Compiling XCTestDynamicOverlay Unimplemented.swift
[19/33] Compiling XCTestDynamicOverlay Deprecations.swift
[20/33] Compiling XCTestDynamicOverlay XCTCurrentTestCase.swift
[21/33] Compiling XCTestDynamicOverlay XCTFail.swift
[22/33] Compiling ConcurrencyExtras UncheckedSendable.swift
[23/33] Compiling ConcurrencyExtras MainSerialExecutor.swift
[24/33] Compiling ConcurrencyExtras LockIsolated.swift
[25/33] Compiling ConcurrencyExtras ActorIsolated.swift
[26/33] Compiling ConcurrencyExtras AsyncThrowingStream.swift
[27/33] Emitting module ConcurrencyExtras
[28/33] Compiling ConcurrencyExtras AsyncStream.swift
[29/33] Compiling ConcurrencyExtras Task.swift
[30/33] Emitting module XCTestDynamicOverlay
[31/33] Compiling XCTestDynamicOverlay GeneratePlaceholder.swift
[32/33] Compiling XCTestDynamicOverlay DefaultInitializable.swift
[33/33] Compiling XCTestDynamicOverlay RuntimeWarnings.swift
[34/55] Compiling CombineSchedulers UIScheduler.swift
[35/56] Compiling CombineSchedulers UIKit.swift
[36/56] Compiling Clocks UnimplementedClock.swift
[37/56] Compiling CombineSchedulers Timer.swift
[38/56] Compiling CombineSchedulers UnimplementedScheduler.swift
[39/56] Compiling Clocks TestClock.swift
[40/56] Compiling Clocks Timer.swift
[41/56] Compiling CombineSchedulers TestScheduler.swift
[42/56] Compiling Clocks Shims.swift
[43/56] Compiling Clocks _AsyncTimerSequence.swift
[44/56] Compiling Clocks ImmediateClock.swift
[45/56] Compiling Clocks SwiftUI.swift
[46/56] Compiling Clocks AnyClock.swift
[47/56] Compiling Clocks Lock.swift
[48/56] Emitting module Clocks
[49/56] Compiling CombineSchedulers Lock.swift
[50/56] Compiling CombineSchedulers NSRecursiveLock.swift
[51/56] Compiling CombineSchedulers ImmediateScheduler.swift
[52/56] Compiling CombineSchedulers Deprecations.swift
[53/56] Compiling CombineSchedulers AnyScheduler.swift
[54/56] Compiling CombineSchedulers Concurrency.swift
[55/56] Compiling CombineSchedulers SwiftUI.swift
[56/56] Emitting module CombineSchedulers
[57/78] Compiling Dependencies Dependency.swift
[58/78] Compiling Dependencies DependencyContext.swift
[59/78] Compiling Dependencies DependencyKey.swift
[60/80] Compiling Dependencies TimeZone.swift
[61/80] Compiling Dependencies URLSession.swift
[62/80] Compiling Dependencies Locale.swift
[63/80] Compiling Dependencies MainQueue.swift
[64/80] Compiling Dependencies OpenExistential.swift
[65/80] Compiling Dependencies RuntimeWarnings.swift
[66/80] Compiling Dependencies Context.swift
[67/80] Compiling Dependencies Date.swift
[68/80] Compiling Dependencies FireAndForget.swift
[69/80] Compiling Dependencies MainRunLoop.swift
[70/80] Compiling Dependencies OpenURL.swift
[71/80] Compiling Dependencies UUID.swift
[72/80] Compiling Dependencies WithRandomNumberGenerator.swift
[73/80] Emitting module Dependencies
[74/80] Compiling Dependencies Deprecations.swift
[75/80] Compiling Dependencies Exports.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] 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: annotate 'zero' with '@MainActor' if property should only be accessed from the main actor
   |                       `- 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 |
[82/114] 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: annotate 'zero' with '@MainActor' if property should only be accessed from the main actor
   |                       `- 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 |
[83/114] 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: annotate 'zero' with '@MainActor' if property should only be accessed from the main actor
   |                       `- 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 |
[84/114] 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: annotate 'zero' with '@MainActor' if property should only be accessed from the main actor
   |                       `- 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 |
[85/117] Compiling Prelude Alt.swift
[86/117] Compiling Prelude Array.swift
[87/117] Compiling Prelude Collection.swift
[88/117] Compiling Prelude CommutativeRing.swift
[89/117] 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 |     }
[90/117] 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 |     }
[91/117] 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 |     }
[92/117] 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: annotate 'zero' with '@MainActor' if property should only be accessed from the main actor
   |                       `- 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: annotate 'empty' with '@MainActor' if property should only be accessed from the main actor
   |                     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 |   public static func <> (lhs: Unit, rhs: Unit) -> Unit {
[93/117] 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: annotate 'empty' with '@MainActor' if property should only be accessed from the main actor
   |                     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 |   public static func <> (lhs: Unit, rhs: Unit) -> Unit {
[94/117] 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: annotate 'empty' with '@MainActor' if property should only be accessed from the main actor
   |                     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 |   public static func <> (lhs: Unit, rhs: Unit) -> Unit {
[95/117] 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: annotate 'empty' with '@MainActor' if property should only be accessed from the main actor
   |                     `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 7 |
 8 |   public static func <> (lhs: Unit, rhs: Unit) -> Unit {
[96/117] Compiling Prelude Sequence.swift
[97/117] Compiling Prelude Set.swift
[98/117] Compiling Prelude String.swift
[99/117] Compiling Prelude Equatable.swift
[100/117] Compiling Prelude EuclideanRing.swift
[101/117] Compiling Prelude Field.swift
[102/117] Compiling Prelude Filterable.swift
[103/117] 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 |       }
[104/117] 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 |       }
[105/117] 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 |       }
[106/117] 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 |       }
[107/117] Compiling Prelude Ring.swift
[108/117] Compiling Prelude Semigroup.swift
[109/117] Compiling Prelude Semiring.swift
[110/117] 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 |   }
[111/117] 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 |   }
[112/117] 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 |   }
[113/117] 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 |   }
[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)
BUILD FAILURE 6.0 macosSpm