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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 SwiftKit, reference 2.4.2 (cd4ab8), with Swift 6.0 for macOS (SPM) on 2 Nov 2024 23:35:10 UTC.

Swift 6 data race errors: 0

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

Build Log

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/wendyliga/SwiftKit.git
Reference: 2.4.2
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/wendyliga/SwiftKit
 * tag               2.4.2      -> FETCH_HEAD
HEAD is now at cd4ab8d Fix Shell (#16)
Cloned https://github.com/wendyliga/SwiftKit.git
Revision (git rev-parse @):
cd4ab8d71b82209b774004954451517e565575bf
SUCCESS checkout https://github.com/wendyliga/SwiftKit.git at 2.4.2
========================================
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": "swiftkit",
      "name": "SwiftKit",
      "url": "https://github.com/wendyliga/SwiftKit.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/SwiftKit",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/wendyliga/SwiftKit.git
[1/717] Fetching swiftkit
Fetched https://github.com/wendyliga/SwiftKit.git from cache (0.85s)
Creating working copy for https://github.com/wendyliga/SwiftKit.git
Working copy of https://github.com/wendyliga/SwiftKit.git resolved at 2.4.2 (cd4ab8d)
warning: '.resolve-product-dependencies': dependency 'swiftkit' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/wendyliga/SwiftKit.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
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--7754E27361AE5C74.txt
[3/12] Compiling SwiftKit Traceable.swift
[4/12] Compiling SwiftKit NonEmpty.swift
[5/13] Compiling SwiftKit Log.swift
[6/13] Compiling SwiftKit String+Extension.swift
[7/13] Compiling SwiftKit Array+Extension.swift
[8/13] Compiling SwiftKit Result+Extension.swift
[9/13] Emitting module SwiftKit
[10/13] Compiling SwiftKit DefaultValue.swift
[11/13] Compiling SwiftKit Error.swift
[12/13] Compiling SwiftKit Deprecated.swift
[13/13] Compiling SwiftKit Shell.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftKit/Shell.swift:75:21: warning: capture of 'result' with non-sendable type '(Shell.ResultStream) -> Void' (aka '((output: Optional<String>, errorOuput: Optional<String>)) -> ()') in a `@Sendable` closure; this is an error in the Swift 6 language mode
 73 |             if data.count > 0 {
 74 |                 if let output = String(data: data, encoding: String.Encoding.utf8) {
 75 |                     result((output: output.trim(), errorOuput: nil))
    |                     |- warning: capture of 'result' with non-sendable type '(Shell.ResultStream) -> Void' (aka '((output: Optional<String>, errorOuput: Optional<String>)) -> ()') in a `@Sendable` closure; this is an error in the Swift 6 language mode
    |                     `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
 76 |                 }
 77 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftKit/Shell.swift:81:59: warning: capture of 'stdOutObserver' with non-sendable type '(any NSObjectProtocol)?' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 79 |             } else {
 80 |                 // That means we've reached the end of the input.
 81 |                 NotificationCenter.default.removeObserver(stdOutObserver!)
    |                                                           `- warning: capture of 'stdOutObserver' with non-sendable type '(any NSObjectProtocol)?' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 82 |             }
 83 |         }
ObjectiveC.NSObjectProtocol:1:17: note: protocol 'NSObjectProtocol' does not conform to the 'Sendable' protocol
 1 | public protocol NSObjectProtocol {
   |                 `- note: protocol 'NSObjectProtocol' does not conform to the 'Sendable' protocol
 2 |     func isEqual(_ object: Any?) -> Bool
 3 |     var hash: Int { get }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftKit/Shell.swift:25:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'ObjectiveC'
 23 |  */
 24 |
 25 | import Foundation
    | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'ObjectiveC'
 26 |
 27 | public enum Shell {
/Users/admin/builder/spi-builder-workspace/Sources/SwiftKit/Shell.swift:81:59: warning: reference to captured var 'stdOutObserver' in concurrently-executing code; this is an error in the Swift 6 language mode
 79 |             } else {
 80 |                 // That means we've reached the end of the input.
 81 |                 NotificationCenter.default.removeObserver(stdOutObserver!)
    |                                                           `- warning: reference to captured var 'stdOutObserver' in concurrently-executing code; this is an error in the Swift 6 language mode
 82 |             }
 83 |         }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftKit/Shell.swift:95:21: warning: capture of 'result' with non-sendable type '(Shell.ResultStream) -> Void' (aka '((output: Optional<String>, errorOuput: Optional<String>)) -> ()') in a `@Sendable` closure; this is an error in the Swift 6 language mode
 93 |             if data.count > 0 {
 94 |                 if let output = String(data: data, encoding: String.Encoding.utf8) {
 95 |                     result((output: nil, errorOuput: output.trim()))
    |                     |- warning: capture of 'result' with non-sendable type '(Shell.ResultStream) -> Void' (aka '((output: Optional<String>, errorOuput: Optional<String>)) -> ()') in a `@Sendable` closure; this is an error in the Swift 6 language mode
    |                     `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
 96 |                 }
 97 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftKit/Shell.swift:101:59: warning: capture of 'stdErrObserver' with non-sendable type '(any NSObjectProtocol)?' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 99 |             } else {
100 |                 // That means we've reached the end of the input.
101 |                 NotificationCenter.default.removeObserver(stdErrObserver!)
    |                                                           `- warning: capture of 'stdErrObserver' with non-sendable type '(any NSObjectProtocol)?' in a `@Sendable` closure; this is an error in the Swift 6 language mode
102 |             }
103 |         }
ObjectiveC.NSObjectProtocol:1:17: note: protocol 'NSObjectProtocol' does not conform to the 'Sendable' protocol
 1 | public protocol NSObjectProtocol {
   |                 `- note: protocol 'NSObjectProtocol' does not conform to the 'Sendable' protocol
 2 |     func isEqual(_ object: Any?) -> Bool
 3 |     var hash: Int { get }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftKit/Shell.swift:101:59: warning: reference to captured var 'stdErrObserver' in concurrently-executing code; this is an error in the Swift 6 language mode
 99 |             } else {
100 |                 // That means we've reached the end of the input.
101 |                 NotificationCenter.default.removeObserver(stdErrObserver!)
    |                                                           `- warning: reference to captured var 'stdErrObserver' in concurrently-executing code; this is an error in the Swift 6 language mode
102 |             }
103 |         }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftKit/Shell.swift:66:24: warning: 'stdOutObserver' mutated after capture by sendable closure
 64 |         // set listener
 65 |         var stdOutObserver: NSObjectProtocol!
 66 |         stdOutObserver = NotificationCenter.default.addObserver(
    |                        `- warning: 'stdOutObserver' mutated after capture by sendable closure
 67 |             forName: NSNotification.Name.NSFileHandleDataAvailable,
 68 |             object: stdOutReading,
/Users/admin/builder/spi-builder-workspace/Sources/SwiftKit/Shell.swift:86:24: warning: 'stdErrObserver' mutated after capture by sendable closure
 84 |
 85 |         var stdErrObserver: NSObjectProtocol!
 86 |         stdErrObserver = NotificationCenter.default.addObserver(
    |                        `- warning: 'stdErrObserver' mutated after capture by sendable closure
 87 |             forName: NSNotification.Name.NSFileHandleDataAvailable,
 88 |             object: stdErrReading,
Build complete! (13.10s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftKit",
  "name" : "SwiftKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SwiftKit",
      "targets" : [
        "SwiftKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftKitTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftKitTests",
      "path" : "Tests/SwiftKitTests",
      "sources" : [
        "Array+Tests.swift",
        "DefaultValue+Tests.swift",
        "NonEmpty+Tests.swift",
        "Result+Tests.swift",
        "String+Tests.swift",
        "Traceable+Tests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "SwiftKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftKit",
      "module_type" : "SwiftTarget",
      "name" : "SwiftKit",
      "path" : "Sources/SwiftKit",
      "product_memberships" : [
        "SwiftKit"
      ],
      "sources" : [
        "Deprecated.swift",
        "Error.swift",
        "Extensions/Array+Extension.swift",
        "Extensions/Result+Extension.swift",
        "Extensions/String+Extension.swift",
        "Log.swift",
        "PropertyWrapper/DefaultValue.swift",
        "PropertyWrapper/NonEmpty.swift",
        "PropertyWrapper/Traceable.swift",
        "Shell.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Done.