The Swift Package Index logo.Swift Package Index

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 ReactiveTask, reference 0.16.0 (df1bf7), with Swift 6.1 for macOS (SPM) on 25 Apr 2025 22:07:53 UTC.

Swift 6 data race errors: 7

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/Carthage/ReactiveTask.git
Reference: 0.16.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Carthage/ReactiveTask
 * tag               0.16.0     -> FETCH_HEAD
HEAD is now at df1bf76 Merge pull request #119 from Carthage/release-0.16.0
Submodule path 'Carthage/Checkouts/Nimble': checked out '43304bf2b1579fd555f2fdd51742771c1e4f2b98'
Submodule path 'Carthage/Checkouts/Quick': checked out '0b4ed6c706dd0cce923b5019a605a9bcc6b1b600'
Submodule path 'Carthage/Checkouts/Quick/Externals/Nimble': checked out 'a27c5186ce2d65f60d1237660b2509df3eb29023'
Submodule path 'Carthage/Checkouts/ReactiveSwift': checked out 'e285cea17cca8e23928d1e85a235638184e39ac9'
Submodule path 'Carthage/Checkouts/ReactiveSwift/Carthage/Checkouts/Nimble': checked out 'a27c5186ce2d65f60d1237660b2509df3eb29023'
Submodule path 'Carthage/Checkouts/ReactiveSwift/Carthage/Checkouts/Quick': checked out '0b4ed6c706dd0cce923b5019a605a9bcc6b1b600'
Submodule path 'Carthage/Checkouts/ReactiveSwift/Carthage/Checkouts/Quick/Externals/Nimble': checked out 'a27c5186ce2d65f60d1237660b2509df3eb29023'
Submodule path 'Carthage/Checkouts/ReactiveSwift/Carthage/Checkouts/Result': checked out '2ca499ba456795616fbc471561ff1d963e6ae160'
Submodule path 'Carthage/Checkouts/ReactiveSwift/Carthage/Checkouts/xcconfigs': checked out 'bb795558a76e5daf3688500055bbcfe243bffa8d'
Submodule path 'Carthage/Checkouts/Result': checked out '2ca499ba456795616fbc471561ff1d963e6ae160'
Submodule path 'Carthage/Checkouts/xcconfigs': checked out '3d9d99634cae6d586e272543d527681283b33eb0'
Submodule 'Carthage/Checkouts/Nimble' (https://github.com/Quick/Nimble.git) registered for path 'Carthage/Checkouts/Nimble'
Submodule 'Carthage/Checkouts/Quick' (https://github.com/Quick/Quick.git) registered for path 'Carthage/Checkouts/Quick'
Submodule 'Carthage/Checkouts/ReactiveSwift' (https://github.com/ReactiveCocoa/ReactiveSwift.git) registered for path 'Carthage/Checkouts/ReactiveSwift'
Submodule 'Carthage/Checkouts/Result' (https://github.com/antitypical/Result.git) registered for path 'Carthage/Checkouts/Result'
Submodule 'Carthage/Checkouts/xcconfigs' (https://github.com/jspahrsummers/xcconfigs.git) registered for path 'Carthage/Checkouts/xcconfigs'
Cloning into '/Users/admin/builder/spi-builder-workspace/Carthage/Checkouts/Nimble'...
Cloning into '/Users/admin/builder/spi-builder-workspace/Carthage/Checkouts/Quick'...
Cloning into '/Users/admin/builder/spi-builder-workspace/Carthage/Checkouts/ReactiveSwift'...
Cloning into '/Users/admin/builder/spi-builder-workspace/Carthage/Checkouts/Result'...
Cloning into '/Users/admin/builder/spi-builder-workspace/Carthage/Checkouts/xcconfigs'...
Submodule 'Externals/Nimble' (https://github.com/Quick/Nimble.git) registered for path 'Carthage/Checkouts/Quick/Externals/Nimble'
Cloning into '/Users/admin/builder/spi-builder-workspace/Carthage/Checkouts/Quick/Externals/Nimble'...
Submodule 'Carthage/Checkouts/Nimble' (https://github.com/Quick/Nimble.git) registered for path 'Carthage/Checkouts/ReactiveSwift/Carthage/Checkouts/Nimble'
Submodule 'Carthage/Checkouts/Quick' (https://github.com/Quick/Quick.git) registered for path 'Carthage/Checkouts/ReactiveSwift/Carthage/Checkouts/Quick'
Submodule 'Carthage/Checkouts/Result' (https://github.com/antitypical/Result.git) registered for path 'Carthage/Checkouts/ReactiveSwift/Carthage/Checkouts/Result'
Submodule 'Carthage/Checkouts/xcconfigs' (https://github.com/jspahrsummers/xcconfigs.git) registered for path 'Carthage/Checkouts/ReactiveSwift/Carthage/Checkouts/xcconfigs'
Cloning into '/Users/admin/builder/spi-builder-workspace/Carthage/Checkouts/ReactiveSwift/Carthage/Checkouts/Nimble'...
Cloning into '/Users/admin/builder/spi-builder-workspace/Carthage/Checkouts/ReactiveSwift/Carthage/Checkouts/Quick'...
Cloning into '/Users/admin/builder/spi-builder-workspace/Carthage/Checkouts/ReactiveSwift/Carthage/Checkouts/Result'...
Cloning into '/Users/admin/builder/spi-builder-workspace/Carthage/Checkouts/ReactiveSwift/Carthage/Checkouts/xcconfigs'...
Submodule 'Externals/Nimble' (https://github.com/Quick/Nimble.git) registered for path 'Carthage/Checkouts/ReactiveSwift/Carthage/Checkouts/Quick/Externals/Nimble'
Cloning into '/Users/admin/builder/spi-builder-workspace/Carthage/Checkouts/ReactiveSwift/Carthage/Checkouts/Quick/Externals/Nimble'...
Cloned https://github.com/Carthage/ReactiveTask.git
Revision (git rev-parse @):
df1bf7625684180b9377a8ba3c076db08d98757e
SUCCESS checkout https://github.com/Carthage/ReactiveTask.git at 0.16.0
Fetching https://github.com/Quick/Quick.git
Fetching https://github.com/antitypical/Result.git
Fetching https://github.com/ReactiveCocoa/ReactiveSwift.git
Fetching https://github.com/Quick/Nimble.git
[1/2533] Fetching result
[483/17288] Fetching result, quick
[1741/69776] Fetching result, quick, reactiveswift
[1742/89343] Fetching result, quick, reactiveswift, nimble
Fetched https://github.com/ReactiveCocoa/ReactiveSwift.git from cache (1.99s)
Fetched https://github.com/antitypical/Result.git from cache (1.99s)
Fetched https://github.com/Quick/Nimble.git from cache (1.99s)
Fetched https://github.com/Quick/Quick.git from cache (1.99s)
Computing version for https://github.com/Quick/Nimble.git
Computed https://github.com/Quick/Nimble.git at 8.0.1 (4.71s)
Computing version for https://github.com/Quick/Quick.git
Computed https://github.com/Quick/Quick.git at 2.0.0 (0.58s)
Computing version for https://github.com/ReactiveCocoa/ReactiveSwift.git
Computed https://github.com/ReactiveCocoa/ReactiveSwift.git at 5.0.0 (0.58s)
Computing version for https://github.com/antitypical/Result.git
Computed https://github.com/antitypical/Result.git at 4.1.0 (0.68s)
Creating working copy for https://github.com/ReactiveCocoa/ReactiveSwift.git
Working copy of https://github.com/ReactiveCocoa/ReactiveSwift.git resolved at 5.0.0
Creating working copy for https://github.com/Quick/Quick.git
Working copy of https://github.com/Quick/Quick.git resolved at 2.0.0
Creating working copy for https://github.com/Quick/Nimble.git
Working copy of https://github.com/Quick/Nimble.git resolved at 8.0.1
Creating working copy for https://github.com/antitypical/Result.git
Working copy of https://github.com/antitypical/Result.git resolved at 4.1.0
========================================
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": "reactivetask",
      "name": "ReactiveTask",
      "url": "https://github.com/Carthage/ReactiveTask.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/ReactiveTask",
      "dependencies": [
        {
          "identity": "result",
          "name": "Result",
          "url": "https://github.com/antitypical/Result.git",
          "version": "4.1.0",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Result",
          "dependencies": [
          ]
        },
        {
          "identity": "reactiveswift",
          "name": "ReactiveSwift",
          "url": "https://github.com/ReactiveCocoa/ReactiveSwift.git",
          "version": "5.0.1",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/ReactiveSwift",
          "dependencies": [
            {
              "identity": "result",
              "name": "Result",
              "url": "https://github.com/antitypical/Result.git",
              "version": "4.1.0",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Result",
              "dependencies": [
              ]
            },
            {
              "identity": "quick",
              "name": "Quick",
              "url": "https://github.com/Quick/Quick.git",
              "version": "2.2.1",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Quick",
              "dependencies": [
                {
                  "identity": "nimble",
                  "name": "Nimble",
                  "url": "https://github.com/Quick/Nimble.git",
                  "version": "8.1.2",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Nimble",
                  "dependencies": [
                  ]
                }
              ]
            },
            {
              "identity": "nimble",
              "name": "Nimble",
              "url": "https://github.com/Quick/Nimble.git",
              "version": "8.1.2",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Nimble",
              "dependencies": [
              ]
            }
          ]
        },
        {
          "identity": "quick",
          "name": "Quick",
          "url": "https://github.com/Quick/Quick.git",
          "version": "2.2.1",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Quick",
          "dependencies": [
            {
              "identity": "nimble",
              "name": "Nimble",
              "url": "https://github.com/Quick/Nimble.git",
              "version": "8.1.2",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Nimble",
              "dependencies": [
              ]
            }
          ]
        },
        {
          "identity": "nimble",
          "name": "Nimble",
          "url": "https://github.com/Quick/Nimble.git",
          "version": "8.1.2",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Nimble",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/Carthage/ReactiveTask.git
[1/1925] Fetching reactivetask
Fetched https://github.com/Carthage/ReactiveTask.git from cache (0.75s)
Fetching https://github.com/ReactiveCocoa/ReactiveSwift.git from cache
Fetching https://github.com/Quick/Nimble.git from cache
Fetching https://github.com/Quick/Quick.git from cache
Fetching https://github.com/antitypical/Result.git from cache
Fetched https://github.com/Quick/Nimble.git from cache (0.51s)
Fetched https://github.com/Quick/Quick.git from cache (0.54s)
Fetched https://github.com/antitypical/Result.git from cache (0.54s)
Fetched https://github.com/ReactiveCocoa/ReactiveSwift.git from cache (0.54s)
Computing version for https://github.com/antitypical/Result.git
Computed https://github.com/antitypical/Result.git at 4.1.0 (0.61s)
Computing version for https://github.com/ReactiveCocoa/ReactiveSwift.git
Computed https://github.com/ReactiveCocoa/ReactiveSwift.git at 5.0.1 (0.04s)
Computing version for https://github.com/Quick/Quick.git
Computed https://github.com/Quick/Quick.git at 2.2.1 (0.58s)
Computing version for https://github.com/Quick/Nimble.git
Computed https://github.com/Quick/Nimble.git at 8.1.2 (0.57s)
Creating working copy for https://github.com/Quick/Quick.git
Working copy of https://github.com/Quick/Quick.git resolved at 2.2.1
Creating working copy for https://github.com/ReactiveCocoa/ReactiveSwift.git
Working copy of https://github.com/ReactiveCocoa/ReactiveSwift.git resolved at 5.0.1
Creating working copy for https://github.com/antitypical/Result.git
Working copy of https://github.com/antitypical/Result.git resolved at 4.1.0
Creating working copy for https://github.com/Carthage/ReactiveTask.git
Working copy of https://github.com/Carthage/ReactiveTask.git resolved at 0.16.0 (df1bf76)
Creating working copy for https://github.com/Quick/Nimble.git
Working copy of https://github.com/Quick/Nimble.git resolved at 8.1.2
warning: '.resolve-product-dependencies': dependency 'reactivetask' is not used by any target
Found 4 product dependencies
  - Result
  - ReactiveSwift
  - Quick
  - Nimble
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/Carthage/ReactiveTask.git
https://github.com/Carthage/ReactiveTask.git
{
  "dependencies" : [
    {
      "identity" : "result",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "4.1.0",
            "upper_bound" : "5.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/antitypical/Result.git"
    },
    {
      "identity" : "reactiveswift",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "5.0.0",
            "upper_bound" : "6.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/ReactiveCocoa/ReactiveSwift.git"
    },
    {
      "identity" : "quick",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.0.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Quick.git"
    },
    {
      "identity" : "nimble",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "8.0.1",
            "upper_bound" : "9.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Nimble.git"
    }
  ],
  "manifest_display_name" : "ReactiveTask",
  "name" : "ReactiveTask",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "ReactiveTask",
      "targets" : [
        "ReactiveTask"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "4"
  ],
  "targets" : [
    {
      "c99name" : "ReactiveTaskTests",
      "module_type" : "SwiftTarget",
      "name" : "ReactiveTaskTests",
      "path" : "Tests/ReactiveTaskTests",
      "product_dependencies" : [
        "Quick",
        "Nimble"
      ],
      "sources" : [
        "StringExtensionSpec.swift",
        "TaskSpec.swift"
      ],
      "target_dependencies" : [
        "ReactiveTask"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ReactiveTask",
      "module_type" : "SwiftTarget",
      "name" : "ReactiveTask",
      "path" : "Sources",
      "product_dependencies" : [
        "Result",
        "ReactiveSwift"
      ],
      "product_memberships" : [
        "ReactiveTask"
      ],
      "sources" : [
        "Availability.swift",
        "Errors.swift",
        "Task.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
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
[3/4] Write swift-version-2F0A5646E1D333AE.txt
[5/9] Compiling Result ResultProtocol.swift
[6/9] Compiling Result NoError.swift
[7/9] Emitting module Result
[8/9] Compiling Result Result.swift
[9/9] Compiling Result AnyError.swift
[10/29] Emitting module ReactiveSwift
[11/31] Compiling ReactiveSwift UninhabitedTypeGuards.swift
[12/31] Compiling ReactiveSwift ValidatingProperty.swift
[13/31] Compiling ReactiveSwift Optional.swift
[14/31] Compiling ReactiveSwift Property.swift
[15/31] Compiling ReactiveSwift Flatten.swift
[16/31] Compiling ReactiveSwift FoundationExtensions.swift
[17/31] Compiling ReactiveSwift Lifetime.swift
[18/31] Compiling ReactiveSwift Observer.swift
[19/31] Compiling ReactiveSwift Event.swift
[20/31] Compiling ReactiveSwift EventLogger.swift
[21/31] Compiling ReactiveSwift Action.swift
[22/31] Compiling ReactiveSwift Atomic.swift
[23/31] Compiling ReactiveSwift Bag.swift
[24/31] Compiling ReactiveSwift Reactive.swift
[25/31] Compiling ReactiveSwift ResultExtensions.swift
[26/31] Compiling ReactiveSwift Deprecations+Removals.swift
[27/31] Compiling ReactiveSwift Disposable.swift
[28/31] Compiling ReactiveSwift Scheduler.swift
[29/31] Compiling ReactiveSwift Signal.swift
[30/31] Compiling ReactiveSwift SignalProducer.swift
[31/31] Compiling ReactiveSwift UnidirectionalBinding.swift
[32/35] Compiling ReactiveTask Errors.swift
/Users/admin/builder/spi-builder-workspace/Sources/Errors.swift:14:7: warning: associated value 'shellTaskFailed(_:exitCode:standardError:)' of 'Sendable'-conforming enum 'TaskError' has non-sendable type 'Task'; this is an error in the Swift 6 language mode
12 | public enum TaskError: Error, Equatable {
13 | 	/// A shell task exited unsuccessfully.
14 | 	case shellTaskFailed(Task, exitCode: Int32, standardError: String?)
   |       `- warning: associated value 'shellTaskFailed(_:exitCode:standardError:)' of 'Sendable'-conforming enum 'TaskError' has non-sendable type 'Task'; this is an error in the Swift 6 language mode
15 |
16 | 	/// An error was returned from a POSIX API.
/Users/admin/builder/spi-builder-workspace/Sources/Task.swift:14:15: note: consider making struct 'Task' conform to the 'Sendable' protocol
 12 |
 13 | /// Describes how to execute a shell command.
 14 | public struct Task {
    |               `- note: consider making struct 'Task' conform to the 'Sendable' protocol
 15 | 	/// The path to the executable that should be launched.
 16 | 	public var launchPath: String
[33/35] Compiling ReactiveTask Availability.swift
[34/35] Compiling ReactiveTask Task.swift
/Users/admin/builder/spi-builder-workspace/Sources/Task.swift:503:9: warning: capture of 'lifetime' with non-sendable type 'Lifetime' in a '@Sendable' closure; this is an error in the Swift 6 language mode
501 | 								// Wait for stderr to finish, then pass
502 | 								// through stdout.
503 | 								lifetime += stderrAggregated
    |         `- warning: capture of 'lifetime' with non-sendable type 'Lifetime' in a '@Sendable' closure; this is an error in the Swift 6 language mode
504 | 									.then(stdoutAggregated)
505 | 									.map(TaskEvent.success)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Lifetime.swift:6:20: note: class 'Lifetime' does not conform to the 'Sendable' protocol
  4 | /// Represents the lifetime of an object, and provides a hook to observe when
  5 | /// the object deinitializes.
  6 | public final class Lifetime {
    |                    `- note: class 'Lifetime' does not conform to the 'Sendable' protocol
  7 | 	private let disposables: CompositeDisposable
  8 |
/Users/admin/builder/spi-builder-workspace/Sources/Task.swift:10:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'ReactiveSwift'
  8 |
  9 | import Foundation
 10 | import ReactiveSwift
    | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'ReactiveSwift'
 11 | import Result
 12 |
/Users/admin/builder/spi-builder-workspace/Sources/Task.swift:503:21: warning: capture of 'stderrAggregated' with non-sendable type 'Pipe.ReadProducer' (aka 'SignalProducer<Data, TaskError>') in a '@Sendable' closure; this is an error in the Swift 6 language mode
501 | 								// Wait for stderr to finish, then pass
502 | 								// through stdout.
503 | 								lifetime += stderrAggregated
    |                     `- warning: capture of 'stderrAggregated' with non-sendable type 'Pipe.ReadProducer' (aka 'SignalProducer<Data, TaskError>') in a '@Sendable' closure; this is an error in the Swift 6 language mode
504 | 									.then(stdoutAggregated)
505 | 									.map(TaskEvent.success)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/SignalProducer.swift:19:15: note: generic struct 'SignalProducer' does not conform to the 'Sendable' protocol
  17 | /// different order between Signals, or the stream might be completely
  18 | /// different!
  19 | public struct SignalProducer<Value, Error: Swift.Error> {
     |               `- note: generic struct 'SignalProducer' does not conform to the 'Sendable' protocol
  20 | 	public typealias ProducedSignal = Signal<Value, Error>
  21 |
/Users/admin/builder/spi-builder-workspace/Sources/Task.swift:504:16: warning: capture of 'stdoutAggregated' with non-sendable type 'Pipe.ReadProducer' (aka 'SignalProducer<Data, TaskError>') in a '@Sendable' closure; this is an error in the Swift 6 language mode
502 | 								// through stdout.
503 | 								lifetime += stderrAggregated
504 | 									.then(stdoutAggregated)
    |                `- warning: capture of 'stdoutAggregated' with non-sendable type 'Pipe.ReadProducer' (aka 'SignalProducer<Data, TaskError>') in a '@Sendable' closure; this is an error in the Swift 6 language mode
505 | 									.map(TaskEvent.success)
506 | 									.start(observer)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/SignalProducer.swift:19:15: note: generic struct 'SignalProducer' does not conform to the 'Sendable' protocol
  17 | /// different order between Signals, or the stream might be completely
  18 | /// different!
  19 | public struct SignalProducer<Value, Error: Swift.Error> {
     |               `- note: generic struct 'SignalProducer' does not conform to the 'Sendable' protocol
  20 | 	public typealias ProducedSignal = Signal<Value, Error>
  21 |
/Users/admin/builder/spi-builder-workspace/Sources/Task.swift:506:17: warning: capture of 'observer' with non-sendable type 'Signal<TaskEvent<Data>, TaskError>.Observer' in a '@Sendable' closure; this is an error in the Swift 6 language mode
504 | 									.then(stdoutAggregated)
505 | 									.map(TaskEvent.success)
506 | 									.start(observer)
    |                 `- warning: capture of 'observer' with non-sendable type 'Signal<TaskEvent<Data>, TaskError>.Observer' in a '@Sendable' closure; this is an error in the Swift 6 language mode
507 | 							} else {
508 | 								// Wait for stdout to finish, then pass
/Users/admin/builder/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observer.swift:12:21: note: class 'Observer' does not conform to the 'Sendable' protocol
 10 | 	/// An Observer is a simple wrapper around a function which can receive Events
 11 | 	/// (typically from a Signal).
 12 | 	public final class Observer {
    |                     `- note: class 'Observer' does not conform to the 'Sendable' protocol
 13 | 		public typealias Action = (Event) -> Void
 14 | 		private let _send: Action
/Users/admin/builder/spi-builder-workspace/Sources/Task.swift:514:57: warning: capture of 'self' with non-sendable type 'Task' in a '@Sendable' closure; this is an error in the Swift 6 language mode
 12 |
 13 | /// Describes how to execute a shell command.
 14 | public struct Task {
    |               `- note: consider making struct 'Task' conform to the 'Sendable' protocol
 15 | 	/// The path to the executable that should be launched.
 16 | 	public var launchPath: String
    :
512 | 									.flatMap(.concat) { data -> SignalProducer<TaskEvent<Data>, TaskError> in
513 | 										let errorString = (data.isEmpty ? nil : String(data: data, encoding: .utf8))
514 | 										return SignalProducer(error: .shellTaskFailed(self, exitCode: terminationStatus, standardError: errorString))
    |                                                         `- warning: capture of 'self' with non-sendable type 'Task' in a '@Sendable' closure; this is an error in the Swift 6 language mode
515 | 									}
516 | 									.start(observer)
/Users/admin/builder/spi-builder-workspace/Sources/Task.swift:514:57: warning: capture of 'self' with non-sendable type 'Task' in an isolated closure; this is an error in the Swift 6 language mode
 12 |
 13 | /// Describes how to execute a shell command.
 14 | public struct Task {
    |               `- note: consider making struct 'Task' conform to the 'Sendable' protocol
 15 | 	/// The path to the executable that should be launched.
 16 | 	public var launchPath: String
    :
512 | 									.flatMap(.concat) { data -> SignalProducer<TaskEvent<Data>, TaskError> in
513 | 										let errorString = (data.isEmpty ? nil : String(data: data, encoding: .utf8))
514 | 										return SignalProducer(error: .shellTaskFailed(self, exitCode: terminationStatus, standardError: errorString))
    |                                                         `- warning: capture of 'self' with non-sendable type 'Task' in an isolated closure; this is an error in the Swift 6 language mode
515 | 									}
516 | 									.start(observer)
[35/35] Emitting module ReactiveTask
/Users/admin/builder/spi-builder-workspace/Sources/Errors.swift:14:7: warning: associated value 'shellTaskFailed(_:exitCode:standardError:)' of 'Sendable'-conforming enum 'TaskError' has non-sendable type 'Task'; this is an error in the Swift 6 language mode
12 | public enum TaskError: Error, Equatable {
13 | 	/// A shell task exited unsuccessfully.
14 | 	case shellTaskFailed(Task, exitCode: Int32, standardError: String?)
   |       `- warning: associated value 'shellTaskFailed(_:exitCode:standardError:)' of 'Sendable'-conforming enum 'TaskError' has non-sendable type 'Task'; this is an error in the Swift 6 language mode
15 |
16 | 	/// An error was returned from a POSIX API.
/Users/admin/builder/spi-builder-workspace/Sources/Task.swift:14:15: note: consider making struct 'Task' conform to the 'Sendable' protocol
 12 |
 13 | /// Describes how to execute a shell command.
 14 | public struct Task {
    |               `- note: consider making struct 'Task' conform to the 'Sendable' protocol
 15 | 	/// The path to the executable that should be launched.
 16 | 	public var launchPath: String
/Users/admin/builder/spi-builder-workspace/Sources/Task.swift:503:9: warning: capture of 'lifetime' with non-sendable type 'Lifetime' in a '@Sendable' closure; this is an error in the Swift 6 language mode
501 | 								// Wait for stderr to finish, then pass
502 | 								// through stdout.
503 | 								lifetime += stderrAggregated
    |         `- warning: capture of 'lifetime' with non-sendable type 'Lifetime' in a '@Sendable' closure; this is an error in the Swift 6 language mode
504 | 									.then(stdoutAggregated)
505 | 									.map(TaskEvent.success)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Lifetime.swift:6:20: note: class 'Lifetime' does not conform to the 'Sendable' protocol
  4 | /// Represents the lifetime of an object, and provides a hook to observe when
  5 | /// the object deinitializes.
  6 | public final class Lifetime {
    |                    `- note: class 'Lifetime' does not conform to the 'Sendable' protocol
  7 | 	private let disposables: CompositeDisposable
  8 |
/Users/admin/builder/spi-builder-workspace/Sources/Task.swift:10:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'ReactiveSwift'
  8 |
  9 | import Foundation
 10 | import ReactiveSwift
    | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'ReactiveSwift'
 11 | import Result
 12 |
/Users/admin/builder/spi-builder-workspace/Sources/Task.swift:503:21: warning: capture of 'stderrAggregated' with non-sendable type 'Pipe.ReadProducer' (aka 'SignalProducer<Data, TaskError>') in a '@Sendable' closure; this is an error in the Swift 6 language mode
501 | 								// Wait for stderr to finish, then pass
502 | 								// through stdout.
503 | 								lifetime += stderrAggregated
    |                     `- warning: capture of 'stderrAggregated' with non-sendable type 'Pipe.ReadProducer' (aka 'SignalProducer<Data, TaskError>') in a '@Sendable' closure; this is an error in the Swift 6 language mode
504 | 									.then(stdoutAggregated)
505 | 									.map(TaskEvent.success)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/SignalProducer.swift:19:15: note: generic struct 'SignalProducer' does not conform to the 'Sendable' protocol
  17 | /// different order between Signals, or the stream might be completely
  18 | /// different!
  19 | public struct SignalProducer<Value, Error: Swift.Error> {
     |               `- note: generic struct 'SignalProducer' does not conform to the 'Sendable' protocol
  20 | 	public typealias ProducedSignal = Signal<Value, Error>
  21 |
/Users/admin/builder/spi-builder-workspace/Sources/Task.swift:504:16: warning: capture of 'stdoutAggregated' with non-sendable type 'Pipe.ReadProducer' (aka 'SignalProducer<Data, TaskError>') in a '@Sendable' closure; this is an error in the Swift 6 language mode
502 | 								// through stdout.
503 | 								lifetime += stderrAggregated
504 | 									.then(stdoutAggregated)
    |                `- warning: capture of 'stdoutAggregated' with non-sendable type 'Pipe.ReadProducer' (aka 'SignalProducer<Data, TaskError>') in a '@Sendable' closure; this is an error in the Swift 6 language mode
505 | 									.map(TaskEvent.success)
506 | 									.start(observer)
/Users/admin/builder/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/SignalProducer.swift:19:15: note: generic struct 'SignalProducer' does not conform to the 'Sendable' protocol
  17 | /// different order between Signals, or the stream might be completely
  18 | /// different!
  19 | public struct SignalProducer<Value, Error: Swift.Error> {
     |               `- note: generic struct 'SignalProducer' does not conform to the 'Sendable' protocol
  20 | 	public typealias ProducedSignal = Signal<Value, Error>
  21 |
/Users/admin/builder/spi-builder-workspace/Sources/Task.swift:506:17: warning: capture of 'observer' with non-sendable type 'Signal<TaskEvent<Data>, TaskError>.Observer' in a '@Sendable' closure; this is an error in the Swift 6 language mode
504 | 									.then(stdoutAggregated)
505 | 									.map(TaskEvent.success)
506 | 									.start(observer)
    |                 `- warning: capture of 'observer' with non-sendable type 'Signal<TaskEvent<Data>, TaskError>.Observer' in a '@Sendable' closure; this is an error in the Swift 6 language mode
507 | 							} else {
508 | 								// Wait for stdout to finish, then pass
/Users/admin/builder/spi-builder-workspace/.build/checkouts/ReactiveSwift/Sources/Observer.swift:12:21: note: class 'Observer' does not conform to the 'Sendable' protocol
 10 | 	/// An Observer is a simple wrapper around a function which can receive Events
 11 | 	/// (typically from a Signal).
 12 | 	public final class Observer {
    |                     `- note: class 'Observer' does not conform to the 'Sendable' protocol
 13 | 		public typealias Action = (Event) -> Void
 14 | 		private let _send: Action
/Users/admin/builder/spi-builder-workspace/Sources/Task.swift:514:57: warning: capture of 'self' with non-sendable type 'Task' in a '@Sendable' closure; this is an error in the Swift 6 language mode
 12 |
 13 | /// Describes how to execute a shell command.
 14 | public struct Task {
    |               `- note: consider making struct 'Task' conform to the 'Sendable' protocol
 15 | 	/// The path to the executable that should be launched.
 16 | 	public var launchPath: String
    :
512 | 									.flatMap(.concat) { data -> SignalProducer<TaskEvent<Data>, TaskError> in
513 | 										let errorString = (data.isEmpty ? nil : String(data: data, encoding: .utf8))
514 | 										return SignalProducer(error: .shellTaskFailed(self, exitCode: terminationStatus, standardError: errorString))
    |                                                         `- warning: capture of 'self' with non-sendable type 'Task' in a '@Sendable' closure; this is an error in the Swift 6 language mode
515 | 									}
516 | 									.start(observer)
/Users/admin/builder/spi-builder-workspace/Sources/Task.swift:514:57: warning: capture of 'self' with non-sendable type 'Task' in an isolated closure; this is an error in the Swift 6 language mode
 12 |
 13 | /// Describes how to execute a shell command.
 14 | public struct Task {
    |               `- note: consider making struct 'Task' conform to the 'Sendable' protocol
 15 | 	/// The path to the executable that should be launched.
 16 | 	public var launchPath: String
    :
512 | 									.flatMap(.concat) { data -> SignalProducer<TaskEvent<Data>, TaskError> in
513 | 										let errorString = (data.isEmpty ? nil : String(data: data, encoding: .utf8))
514 | 										return SignalProducer(error: .shellTaskFailed(self, exitCode: terminationStatus, standardError: errorString))
    |                                                         `- warning: capture of 'self' with non-sendable type 'Task' in an isolated closure; this is an error in the Swift 6 language mode
515 | 									}
516 | 									.start(observer)
Build complete! (11.22s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "result",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "4.1.0",
            "upper_bound" : "5.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/antitypical/Result.git"
    },
    {
      "identity" : "reactiveswift",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "5.0.0",
            "upper_bound" : "6.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/ReactiveCocoa/ReactiveSwift.git"
    },
    {
      "identity" : "quick",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.0.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Quick.git"
    },
    {
      "identity" : "nimble",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "8.0.1",
            "upper_bound" : "9.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Nimble.git"
    }
  ],
  "manifest_display_name" : "ReactiveTask",
  "name" : "ReactiveTask",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "ReactiveTask",
      "targets" : [
        "ReactiveTask"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "4"
  ],
  "targets" : [
    {
      "c99name" : "ReactiveTaskTests",
      "module_type" : "SwiftTarget",
      "name" : "ReactiveTaskTests",
      "path" : "Tests/ReactiveTaskTests",
      "product_dependencies" : [
        "Quick",
        "Nimble"
      ],
      "sources" : [
        "StringExtensionSpec.swift",
        "TaskSpec.swift"
      ],
      "target_dependencies" : [
        "ReactiveTask"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ReactiveTask",
      "module_type" : "SwiftTarget",
      "name" : "ReactiveTask",
      "path" : "Sources",
      "product_dependencies" : [
        "Result",
        "ReactiveSwift"
      ],
      "product_memberships" : [
        "ReactiveTask"
      ],
      "sources" : [
        "Availability.swift",
        "Errors.swift",
        "Task.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
Done.