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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 Deferred, reference develop (c82b9e), with Swift 6.1 for macOS (SPM) on 27 Apr 2025 03:42:23 UTC.

Swift 6 data race errors: 1

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/bignerdranch/Deferred.git
Reference: develop
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/bignerdranch/Deferred
 * branch            develop    -> FETCH_HEAD
 * [new branch]      develop    -> origin/develop
HEAD is now at c82b9ef Add concurrency migration guide
Cloned https://github.com/bignerdranch/Deferred.git
Revision (git rev-parse @):
c82b9ef73132ac88a768b9e2fdbab7765346c61d
SUCCESS checkout https://github.com/bignerdranch/Deferred.git at develop
========================================
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": "deferred",
      "name": "Deferred",
      "url": "https://github.com/bignerdranch/Deferred.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Deferred",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/bignerdranch/Deferred.git
[1/6330] Fetching deferred
Fetched https://github.com/bignerdranch/Deferred.git from cache (0.96s)
Creating working copy for https://github.com/bignerdranch/Deferred.git
Working copy of https://github.com/bignerdranch/Deferred.git resolved at develop (c82b9ef)
warning: '.resolve-product-dependencies': dependency 'deferred' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/bignerdranch/Deferred.git
https://github.com/bignerdranch/Deferred.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Deferred",
  "name" : "Deferred",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.12"
    },
    {
      "name" : "ios",
      "version" : "10.0"
    },
    {
      "name" : "watchos",
      "version" : "3.0"
    },
    {
      "name" : "tvos",
      "version" : "10.0"
    }
  ],
  "products" : [
    {
      "name" : "Deferred",
      "targets" : [
        "Deferred",
        "Task"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "TaskTests",
      "module_type" : "SwiftTarget",
      "name" : "TaskTests",
      "path" : "Tests/TaskTests",
      "sources" : [
        "AllTestsCommon.swift",
        "TaskAsyncTests.swift",
        "TaskCompositionTests.swift",
        "TaskComprehensiveTests.swift",
        "TaskProgressTests.swift",
        "TaskProtocolTests.swift",
        "TaskResultTests.swift",
        "TaskTests.swift"
      ],
      "target_dependencies" : [
        "Deferred",
        "Task"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Task",
      "module_type" : "SwiftTarget",
      "name" : "Task",
      "path" : "Sources/Task",
      "product_memberships" : [
        "Deferred"
      ],
      "sources" : [
        "Either.swift",
        "ExistentialTask.swift",
        "Progress+ExplicitComposition.swift",
        "Progress+Future.swift",
        "Task.swift",
        "TaskAndThen.swift",
        "TaskAsync.swift",
        "TaskChain.swift",
        "TaskCollections.swift",
        "TaskComposition.swift",
        "TaskEveryMap.swift",
        "TaskFallback.swift",
        "TaskIgnore.swift",
        "TaskMap.swift",
        "TaskPromise.swift",
        "TaskRecovery.swift",
        "TaskResult.swift",
        "TaskUpon.swift"
      ],
      "target_dependencies" : [
        "Deferred",
        "CAtomics"
      ],
      "type" : "library"
    },
    {
      "c99name" : "DeferredTests",
      "module_type" : "SwiftTarget",
      "name" : "DeferredTests",
      "path" : "Tests/DeferredTests",
      "sources" : [
        "AllTestsCommon.swift",
        "DeferredTests.swift",
        "ExistentialFutureTests.swift",
        "FilledDeferredTests.swift",
        "FutureAsyncTests.swift",
        "FutureCustomExecutorTests.swift",
        "FutureIgnoreTests.swift",
        "FutureTests.swift",
        "ObjectDeferredTests.swift",
        "PerformanceTests.swift",
        "ProtectedTests.swift",
        "SwiftBugTests.swift"
      ],
      "target_dependencies" : [
        "Deferred"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Deferred",
      "module_type" : "SwiftTarget",
      "name" : "Deferred",
      "path" : "Sources/Deferred",
      "product_memberships" : [
        "Deferred"
      ],
      "sources" : [
        "Atomics.swift",
        "Deferred.swift",
        "DeferredQueue.swift",
        "DeferredVariant.swift",
        "Executor.swift",
        "ExistentialFuture.swift",
        "Future.swift",
        "FutureAndThen.swift",
        "FutureAsync.swift",
        "FutureCollections.swift",
        "FutureComposition.swift",
        "FutureEveryMap.swift",
        "FutureIgnore.swift",
        "FutureMap.swift",
        "FuturePeek.swift",
        "FutureUpon.swift",
        "Locking.swift",
        "Promise.swift",
        "Protected.swift"
      ],
      "target_dependencies" : [
        "CAtomics"
      ],
      "type" : "library"
    },
    {
      "c99name" : "CAtomics",
      "module_type" : "ClangTarget",
      "name" : "CAtomics",
      "path" : "Sources/CAtomics",
      "product_memberships" : [
        "Deferred"
      ],
      "sources" : [
        "Empty.c"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
warning: 'spi-builder-workspace': Invalid Exclude '/Users/admin/builder/spi-builder-workspace/Tests/DeferredTests/Tests/AllTestsCommon.swift': File not found.
warning: 'spi-builder-workspace': Invalid Exclude '/Users/admin/builder/spi-builder-workspace/Tests/TaskTests/Tests/AllTestsCommon.swift': File not found.
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...
[0/4] Write sources
[2/4] Compiling CAtomics Empty.c
[3/4] Write swift-version-2F0A5646E1D333AE.txt
[5/23] Compiling Deferred FutureIgnore.swift
[6/23] Compiling Deferred FutureMap.swift
[7/24] Compiling Deferred Protected.swift
[8/24] Compiling Deferred FuturePeek.swift
[9/24] Compiling Deferred FutureUpon.swift
[10/24] Compiling Deferred FutureComposition.swift
[11/24] Compiling Deferred FutureEveryMap.swift
[12/24] Compiling Deferred FutureAsync.swift
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/FutureAsync.swift:23:13: warning: capture of 'deferred' with non-sendable type 'Deferred<Value>' in a '@Sendable' closure
21 |
22 |         queue.async(flags: flags) {
23 |             deferred.fill(with: work())
   |             `- warning: capture of 'deferred' with non-sendable type 'Deferred<Value>' in a '@Sendable' closure
24 |         }
25 |
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/Deferred.swift:22:15: note: consider making generic struct 'Deferred' conform to the 'Sendable' protocol
20 | /// If the value never becomes determined, a handler submitted to it will never
21 | /// be executed.
22 | public struct Deferred<Value> {
   |               `- note: consider making generic struct 'Deferred' conform to the 'Sendable' protocol
23 |     /// The primary storage, initialized with a value once-and-only-once (at
24 |     /// init or later).
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/FutureAsync.swift:23:33: warning: capture of 'work' with non-sendable type '() -> Value' in a '@Sendable' closure
21 |
22 |         queue.async(flags: flags) {
23 |             deferred.fill(with: work())
   |                                 |- warning: capture of 'work' with non-sendable type '() -> Value' in a '@Sendable' closure
   |                                 `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
24 |         }
25 |
[13/24] Compiling Deferred FutureCollections.swift
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/FutureAsync.swift:23:13: warning: capture of 'deferred' with non-sendable type 'Deferred<Value>' in a '@Sendable' closure
21 |
22 |         queue.async(flags: flags) {
23 |             deferred.fill(with: work())
   |             `- warning: capture of 'deferred' with non-sendable type 'Deferred<Value>' in a '@Sendable' closure
24 |         }
25 |
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/Deferred.swift:22:15: note: consider making generic struct 'Deferred' conform to the 'Sendable' protocol
20 | /// If the value never becomes determined, a handler submitted to it will never
21 | /// be executed.
22 | public struct Deferred<Value> {
   |               `- note: consider making generic struct 'Deferred' conform to the 'Sendable' protocol
23 |     /// The primary storage, initialized with a value once-and-only-once (at
24 |     /// init or later).
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/FutureAsync.swift:23:33: warning: capture of 'work' with non-sendable type '() -> Value' in a '@Sendable' closure
21 |
22 |         queue.async(flags: flags) {
23 |             deferred.fill(with: work())
   |                                 |- warning: capture of 'work' with non-sendable type '() -> Value' in a '@Sendable' closure
   |                                 `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
24 |         }
25 |
[14/24] Compiling Deferred DeferredQueue.swift
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/DeferredVariant.swift:10:22: warning: using '@_implementationOnly' without enabling library evolution for 'Deferred' may lead to instability during execution
  8 |
  9 | #if SWIFT_PACKAGE || (canImport(CAtomics) && !FORCE_PLAYGROUND_COMPATIBILITY)
 10 | @_implementationOnly import CAtomics
    |                      `- warning: using '@_implementationOnly' without enabling library evolution for 'Deferred' may lead to instability during execution
 11 | #endif
 12 |
[15/24] Compiling Deferred DeferredVariant.swift
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/DeferredVariant.swift:10:22: warning: using '@_implementationOnly' without enabling library evolution for 'Deferred' may lead to instability during execution
  8 |
  9 | #if SWIFT_PACKAGE || (canImport(CAtomics) && !FORCE_PLAYGROUND_COMPATIBILITY)
 10 | @_implementationOnly import CAtomics
    |                      `- warning: using '@_implementationOnly' without enabling library evolution for 'Deferred' may lead to instability during execution
 11 | #endif
 12 |
[16/24] Compiling Deferred Executor.swift
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/Executor.swift:83:24: warning: passing non-sendable parameter 'body' to function expecting a @Sendable closure
 80 |     }
 81 |
 82 |     public func submit(_ body: @escaping() -> Void) {
    |                          `- note: parameter 'body' is implicitly non-sendable
 83 |         async(execute: body)
    |                        `- warning: passing non-sendable parameter 'body' to function expecting a @Sendable closure
 84 |     }
 85 |
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/Executor.swift:99:22: warning: passing non-sendable parameter 'body' to function expecting a @Sendable closure
 96 | /// operations in the queue.
 97 | extension OperationQueue: Executor {
 98 |     public func submit(_ body: @escaping() -> Void) {
    |                          `- note: parameter 'body' is implicitly non-sendable
 99 |         addOperation(body)
    |                      `- warning: passing non-sendable parameter 'body' to function expecting a @Sendable closure
100 |     }
101 | }
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/Executor.swift:126:17: warning: passing non-sendable parameter 'body' to function expecting a @Sendable closure
123 | /// of the run loop.
124 | extension RunLoop: Executor {
125 |     public func submit(_ body: @escaping() -> Void) {
    |                          `- note: parameter 'body' is implicitly non-sendable
126 |         perform(body)
    |                 `- warning: passing non-sendable parameter 'body' to function expecting a @Sendable closure
127 |     }
128 | }
[17/24] Compiling Deferred ExistentialFuture.swift
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/Executor.swift:83:24: warning: passing non-sendable parameter 'body' to function expecting a @Sendable closure
 80 |     }
 81 |
 82 |     public func submit(_ body: @escaping() -> Void) {
    |                          `- note: parameter 'body' is implicitly non-sendable
 83 |         async(execute: body)
    |                        `- warning: passing non-sendable parameter 'body' to function expecting a @Sendable closure
 84 |     }
 85 |
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/Executor.swift:99:22: warning: passing non-sendable parameter 'body' to function expecting a @Sendable closure
 96 | /// operations in the queue.
 97 | extension OperationQueue: Executor {
 98 |     public func submit(_ body: @escaping() -> Void) {
    |                          `- note: parameter 'body' is implicitly non-sendable
 99 |         addOperation(body)
    |                      `- warning: passing non-sendable parameter 'body' to function expecting a @Sendable closure
100 |     }
101 | }
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/Executor.swift:126:17: warning: passing non-sendable parameter 'body' to function expecting a @Sendable closure
123 | /// of the run loop.
124 | extension RunLoop: Executor {
125 |     public func submit(_ body: @escaping() -> Void) {
    |                          `- note: parameter 'body' is implicitly non-sendable
126 |         perform(body)
    |                 `- warning: passing non-sendable parameter 'body' to function expecting a @Sendable closure
127 |     }
128 | }
[18/24] Compiling Deferred Future.swift
[19/24] Compiling Deferred FutureAndThen.swift
[20/24] Compiling Deferred Atomics.swift
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/Atomics.swift:19:22: warning: using '@_implementationOnly' without enabling library evolution for 'Deferred' may lead to instability during execution
 17 |
 18 | #if SWIFT_PACKAGE || (canImport(CAtomics) && !FORCE_PLAYGROUND_COMPATIBILITY)
 19 | @_implementationOnly import CAtomics
    |                      `- warning: using '@_implementationOnly' without enabling library evolution for 'Deferred' may lead to instability during execution
 20 | #elseif canImport(Darwin)
 21 | #warning("Using fallback implementation for Swift Playgrounds. This is unsafe for use in production. Check your build setup.")
[21/24] Compiling Deferred Deferred.swift
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/Atomics.swift:19:22: warning: using '@_implementationOnly' without enabling library evolution for 'Deferred' may lead to instability during execution
 17 |
 18 | #if SWIFT_PACKAGE || (canImport(CAtomics) && !FORCE_PLAYGROUND_COMPATIBILITY)
 19 | @_implementationOnly import CAtomics
    |                      `- warning: using '@_implementationOnly' without enabling library evolution for 'Deferred' may lead to instability during execution
 20 | #elseif canImport(Darwin)
 21 | #warning("Using fallback implementation for Swift Playgrounds. This is unsafe for use in production. Check your build setup.")
[22/24] Compiling Deferred Locking.swift
[23/24] Compiling Deferred Promise.swift
[24/24] Emitting module Deferred
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/Atomics.swift:19:22: warning: using '@_implementationOnly' without enabling library evolution for 'Deferred' may lead to instability during execution
 17 |
 18 | #if SWIFT_PACKAGE || (canImport(CAtomics) && !FORCE_PLAYGROUND_COMPATIBILITY)
 19 | @_implementationOnly import CAtomics
    |                      `- warning: using '@_implementationOnly' without enabling library evolution for 'Deferred' may lead to instability during execution
 20 | #elseif canImport(Darwin)
 21 | #warning("Using fallback implementation for Swift Playgrounds. This is unsafe for use in production. Check your build setup.")
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/DeferredVariant.swift:10:22: warning: using '@_implementationOnly' without enabling library evolution for 'Deferred' may lead to instability during execution
  8 |
  9 | #if SWIFT_PACKAGE || (canImport(CAtomics) && !FORCE_PLAYGROUND_COMPATIBILITY)
 10 | @_implementationOnly import CAtomics
    |                      `- warning: using '@_implementationOnly' without enabling library evolution for 'Deferred' may lead to instability during execution
 11 | #endif
 12 |
[25/42] Compiling Task TaskPromise.swift
[26/42] Compiling Task TaskRecovery.swift
[27/43] Compiling Task TaskUpon.swift
[28/43] Compiling Task TaskResult.swift
[29/43] Compiling Task TaskIgnore.swift
[30/43] Compiling Task TaskMap.swift
[31/43] Compiling Task TaskEveryMap.swift
[32/43] Compiling Task TaskFallback.swift
[33/43] Compiling Task TaskAsync.swift
/Users/admin/builder/spi-builder-workspace/Sources/Task/TaskAsync.swift:35:13: warning: capture of 'deferred' with non-sendable type 'Deferred<Task<Success>.Result>' (aka 'Deferred<Result<Success, any Error>>') in a '@Sendable' closure
33 |             defer { semaphore.signal() }
34 |
35 |             deferred.fill(with: Result(catching: work))
   |             `- warning: capture of 'deferred' with non-sendable type 'Deferred<Task<Success>.Result>' (aka 'Deferred<Result<Success, any Error>>') in a '@Sendable' closure
36 |         }
37 |
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/Deferred.swift:22:15: note: generic struct 'Deferred' does not conform to the 'Sendable' protocol
20 | /// If the value never becomes determined, a handler submitted to it will never
21 | /// be executed.
22 | public struct Deferred<Value> {
   |               `- note: generic struct 'Deferred' does not conform to the 'Sendable' protocol
23 |     /// The primary storage, initialized with a value once-and-only-once (at
24 |     /// init or later).
/Users/admin/builder/spi-builder-workspace/Sources/Task/TaskAsync.swift:10:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Deferred'
 8 |
 9 | #if SWIFT_PACKAGE
10 | import Deferred
   | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Deferred'
11 | #endif
12 | import Dispatch
/Users/admin/builder/spi-builder-workspace/Sources/Task/TaskAsync.swift:35:50: warning: capture of 'work' with non-sendable type '() throws -> Success' in a '@Sendable' closure
33 |             defer { semaphore.signal() }
34 |
35 |             deferred.fill(with: Result(catching: work))
   |                                                  |- warning: capture of 'work' with non-sendable type '() throws -> Success' in a '@Sendable' closure
   |                                                  `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
36 |         }
37 |
/Users/admin/builder/spi-builder-workspace/Sources/Task/TaskChain.swift:35:19: warning: class 'Root' must restate inherited '@unchecked Sendable' conformance
 33 |     /// that first task's `Root`.
 34 |     @objc(BNRTaskRootProgress)
 35 |     private class Root: Progress {
    |                   `- warning: class 'Root' must restate inherited '@unchecked Sendable' conformance
 36 |         /// Key for value of type `[Root]?` in `Thread.threadDictionary`.
 37 |         static let threadKey = "_BNRTaskProgressStack"
[34/43] Compiling Task TaskChain.swift
/Users/admin/builder/spi-builder-workspace/Sources/Task/TaskAsync.swift:35:13: warning: capture of 'deferred' with non-sendable type 'Deferred<Task<Success>.Result>' (aka 'Deferred<Result<Success, any Error>>') in a '@Sendable' closure
33 |             defer { semaphore.signal() }
34 |
35 |             deferred.fill(with: Result(catching: work))
   |             `- warning: capture of 'deferred' with non-sendable type 'Deferred<Task<Success>.Result>' (aka 'Deferred<Result<Success, any Error>>') in a '@Sendable' closure
36 |         }
37 |
/Users/admin/builder/spi-builder-workspace/Sources/Deferred/Deferred.swift:22:15: note: generic struct 'Deferred' does not conform to the 'Sendable' protocol
20 | /// If the value never becomes determined, a handler submitted to it will never
21 | /// be executed.
22 | public struct Deferred<Value> {
   |               `- note: generic struct 'Deferred' does not conform to the 'Sendable' protocol
23 |     /// The primary storage, initialized with a value once-and-only-once (at
24 |     /// init or later).
/Users/admin/builder/spi-builder-workspace/Sources/Task/TaskAsync.swift:10:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Deferred'
 8 |
 9 | #if SWIFT_PACKAGE
10 | import Deferred
   | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Deferred'
11 | #endif
12 | import Dispatch
/Users/admin/builder/spi-builder-workspace/Sources/Task/TaskAsync.swift:35:50: warning: capture of 'work' with non-sendable type '() throws -> Success' in a '@Sendable' closure
33 |             defer { semaphore.signal() }
34 |
35 |             deferred.fill(with: Result(catching: work))
   |                                                  |- warning: capture of 'work' with non-sendable type '() throws -> Success' in a '@Sendable' closure
   |                                                  `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
36 |         }
37 |
/Users/admin/builder/spi-builder-workspace/Sources/Task/TaskChain.swift:35:19: warning: class 'Root' must restate inherited '@unchecked Sendable' conformance
 33 |     /// that first task's `Root`.
 34 |     @objc(BNRTaskRootProgress)
 35 |     private class Root: Progress {
    |                   `- warning: class 'Root' must restate inherited '@unchecked Sendable' conformance
 36 |         /// Key for value of type `[Root]?` in `Thread.threadDictionary`.
 37 |         static let threadKey = "_BNRTaskProgressStack"
[35/43] Compiling Task Task.swift
[36/43] Compiling Task TaskAndThen.swift
[37/43] Compiling Task Either.swift
/Users/admin/builder/spi-builder-workspace/Sources/Task/ExistentialTask.swift:14:22: warning: using '@_implementationOnly' without enabling library evolution for 'Task' may lead to instability during execution
 12 | #endif
 13 | #if SWIFT_PACKAGE || (canImport(CAtomics) && !FORCE_PLAYGROUND_COMPATIBILITY)
 14 | @_implementationOnly import CAtomics
    |                      `- warning: using '@_implementationOnly' without enabling library evolution for 'Task' may lead to instability during execution
 15 | #endif
 16 |
[38/43] Compiling Task ExistentialTask.swift
/Users/admin/builder/spi-builder-workspace/Sources/Task/ExistentialTask.swift:14:22: warning: using '@_implementationOnly' without enabling library evolution for 'Task' may lead to instability during execution
 12 | #endif
 13 | #if SWIFT_PACKAGE || (canImport(CAtomics) && !FORCE_PLAYGROUND_COMPATIBILITY)
 14 | @_implementationOnly import CAtomics
    |                      `- warning: using '@_implementationOnly' without enabling library evolution for 'Task' may lead to instability during execution
 15 | #endif
 16 |
[39/43] Compiling Task TaskCollections.swift
[40/43] Compiling Task TaskComposition.swift
[41/43] Emitting module Task
/Users/admin/builder/spi-builder-workspace/Sources/Task/ExistentialTask.swift:14:22: warning: using '@_implementationOnly' without enabling library evolution for 'Task' may lead to instability during execution
 12 | #endif
 13 | #if SWIFT_PACKAGE || (canImport(CAtomics) && !FORCE_PLAYGROUND_COMPATIBILITY)
 14 | @_implementationOnly import CAtomics
    |                      `- warning: using '@_implementationOnly' without enabling library evolution for 'Task' may lead to instability during execution
 15 | #endif
 16 |
/Users/admin/builder/spi-builder-workspace/Sources/Task/Progress+ExplicitComposition.swift:15:21: warning: class 'ProxyProgress' must restate inherited '@unchecked Sendable' conformance
 13 | /// tree.
 14 | @objc(BNRTaskProxyProgress)
 15 | private final class ProxyProgress: Progress {
    |                     `- warning: class 'ProxyProgress' must restate inherited '@unchecked Sendable' conformance
 16 |
 17 |     @objc dynamic let observee: Progress
/Users/admin/builder/spi-builder-workspace/Sources/Task/Progress+Future.swift:17:16: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'ProgressCompletionExecutor' may have shared mutable state; this is an error in the Swift 6 language mode
13 | #endif
14 |
15 | private final class ProgressCompletionExecutor: Executor {
   |                     `- note: class 'ProgressCompletionExecutor' does not conform to the 'Sendable' protocol
16 |
17 |     static let shared = ProgressCompletionExecutor()
   |                |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'ProgressCompletionExecutor' may have shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: add '@MainActor' to make static property 'shared' part of global actor 'MainActor'
   |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
18 |
19 |     func submit(_ body: @escaping () -> Void) {
/Users/admin/builder/spi-builder-workspace/Sources/Task/TaskChain.swift:35:19: warning: class 'Root' must restate inherited '@unchecked Sendable' conformance
 33 |     /// that first task's `Root`.
 34 |     @objc(BNRTaskRootProgress)
 35 |     private class Root: Progress {
    |                   `- warning: class 'Root' must restate inherited '@unchecked Sendable' conformance
 36 |         /// Key for value of type `[Root]?` in `Thread.threadDictionary`.
 37 |         static let threadKey = "_BNRTaskProgressStack"
[42/43] Compiling Task Progress+ExplicitComposition.swift
/Users/admin/builder/spi-builder-workspace/Sources/Task/Progress+ExplicitComposition.swift:15:21: warning: class 'ProxyProgress' must restate inherited '@unchecked Sendable' conformance
 13 | /// tree.
 14 | @objc(BNRTaskProxyProgress)
 15 | private final class ProxyProgress: Progress {
    |                     `- warning: class 'ProxyProgress' must restate inherited '@unchecked Sendable' conformance
 16 |
 17 |     @objc dynamic let observee: Progress
/Users/admin/builder/spi-builder-workspace/Sources/Task/Progress+Future.swift:17:16: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'ProgressCompletionExecutor' may have shared mutable state; this is an error in the Swift 6 language mode
13 | #endif
14 |
15 | private final class ProgressCompletionExecutor: Executor {
   |                     `- note: class 'ProgressCompletionExecutor' does not conform to the 'Sendable' protocol
16 |
17 |     static let shared = ProgressCompletionExecutor()
   |                |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'ProgressCompletionExecutor' may have shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: add '@MainActor' to make static property 'shared' part of global actor 'MainActor'
   |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
18 |
19 |     func submit(_ body: @escaping () -> Void) {
/Users/admin/builder/spi-builder-workspace/Sources/Task/Progress+Future.swift:48:35: warning: assigning non-sendable parameter 'cancellation' to a @Sendable closure
28 |     /// Returns a progress that is indeterminate until `wrapped` is fulfilled,
29 |     /// then finishes at 100%.
30 |     static func basicProgress<Wrapped: FutureProtocol>(for wrapped: Wrapped, uponCancel cancellation: (() -> Void)?) -> Progress {
   |                                                                                         `- note: parameter 'cancellation' is implicitly non-sendable
31 |         let child = Progress(parent: nil, userInfo: [
32 |             Progress.didTaskGenerateKey: true
   :
46 |         }
47 |
48 |         child.cancellationHandler = cancellation
   |                                   `- warning: assigning non-sendable parameter 'cancellation' to a @Sendable closure
49 |         child.isCancellable = cancellation != nil
50 |         return child
[43/43] Compiling Task Progress+Future.swift
/Users/admin/builder/spi-builder-workspace/Sources/Task/Progress+ExplicitComposition.swift:15:21: warning: class 'ProxyProgress' must restate inherited '@unchecked Sendable' conformance
 13 | /// tree.
 14 | @objc(BNRTaskProxyProgress)
 15 | private final class ProxyProgress: Progress {
    |                     `- warning: class 'ProxyProgress' must restate inherited '@unchecked Sendable' conformance
 16 |
 17 |     @objc dynamic let observee: Progress
/Users/admin/builder/spi-builder-workspace/Sources/Task/Progress+Future.swift:17:16: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'ProgressCompletionExecutor' may have shared mutable state; this is an error in the Swift 6 language mode
13 | #endif
14 |
15 | private final class ProgressCompletionExecutor: Executor {
   |                     `- note: class 'ProgressCompletionExecutor' does not conform to the 'Sendable' protocol
16 |
17 |     static let shared = ProgressCompletionExecutor()
   |                |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'ProgressCompletionExecutor' may have shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: add '@MainActor' to make static property 'shared' part of global actor 'MainActor'
   |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
18 |
19 |     func submit(_ body: @escaping () -> Void) {
/Users/admin/builder/spi-builder-workspace/Sources/Task/Progress+Future.swift:48:35: warning: assigning non-sendable parameter 'cancellation' to a @Sendable closure
28 |     /// Returns a progress that is indeterminate until `wrapped` is fulfilled,
29 |     /// then finishes at 100%.
30 |     static func basicProgress<Wrapped: FutureProtocol>(for wrapped: Wrapped, uponCancel cancellation: (() -> Void)?) -> Progress {
   |                                                                                         `- note: parameter 'cancellation' is implicitly non-sendable
31 |         let child = Progress(parent: nil, userInfo: [
32 |             Progress.didTaskGenerateKey: true
   :
46 |         }
47 |
48 |         child.cancellationHandler = cancellation
   |                                   `- warning: assigning non-sendable parameter 'cancellation' to a @Sendable closure
49 |         child.isCancellable = cancellation != nil
50 |         return child
Build complete! (6.85s)
warning: 'spi-builder-workspace': Invalid Exclude '/Users/admin/builder/spi-builder-workspace/Tests/DeferredTests/Tests/AllTestsCommon.swift': File not found.
warning: 'spi-builder-workspace': Invalid Exclude '/Users/admin/builder/spi-builder-workspace/Tests/TaskTests/Tests/AllTestsCommon.swift': File not found.
Build complete.
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warning: 'spi-builder-workspace': Invalid Exclude '/Users/admin/builder/spi-builder-workspace/Tests/DeferredTests/Tests/AllTestsCommon.swift': File not found.
warning: 'spi-builder-workspace': Invalid Exclude '/Users/admin/builder/spi-builder-workspace/Tests/TaskTests/Tests/AllTestsCommon.swift': File not found.
Done.