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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 Signals with Swift 6.0 for macOS (SPM).

Swift 6 data race errors: 1

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.40.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Kitura/BlueSignals.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Kitura/BlueSignals
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at a5ce527 Add SIGCHLD and other signals
Cloned https://github.com/Kitura/BlueSignals.git
Revision (git rev-parse @):
a5ce52795af4d91b3ff5dfb484ee3e45d9ed3d44
SUCCESS checkout https://github.com/Kitura/BlueSignals.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/Kitura/BlueSignals.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a 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-6F35C1178C84523A.txt
[3/6] Compiling Signals SignalWatchHandler.swift
[4/6] Compiling Signals Signals.swift
[5/6] Emitting module Signals
/Users/admin/builder/spi-builder-workspace/Sources/Signals/SignalWatch.swift:12:23: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'SignalWatch' may have shared mutable state; this is an error in the Swift 6 language mode
  9 |
 10 | /// ``SignalWatch`` provides an interface around ``Signals`` that allows for multiple handlers to be registered for any given signal.
 11 | public class SignalWatch {
    |              `- note: class 'SignalWatch' does not conform to the 'Sendable' protocol
 12 |     public static let shared = SignalWatch()
    |                       |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'SignalWatch' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'shared' 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
 13 |
 14 |     typealias SignalNumber = Int32
[6/6] Compiling Signals SignalWatch.swift
/Users/admin/builder/spi-builder-workspace/Sources/Signals/SignalWatch.swift:12:23: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'SignalWatch' may have shared mutable state; this is an error in the Swift 6 language mode
  9 |
 10 | /// ``SignalWatch`` provides an interface around ``Signals`` that allows for multiple handlers to be registered for any given signal.
 11 | public class SignalWatch {
    |              `- note: class 'SignalWatch' does not conform to the 'Sendable' protocol
 12 |     public static let shared = SignalWatch()
    |                       |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'SignalWatch' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'shared' 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
 13 |
 14 |     typealias SignalNumber = Int32
/Users/admin/builder/spi-builder-workspace/Sources/Signals/SignalWatch.swift:90:48: warning: capture of 'self' with non-sendable type 'SignalWatch' in a `@Sendable` closure; this is an error in the Swift 6 language mode
  9 |
 10 | /// ``SignalWatch`` provides an interface around ``Signals`` that allows for multiple handlers to be registered for any given signal.
 11 | public class SignalWatch {
    |              `- note: class 'SignalWatch' does not conform to the 'Sendable' protocol
 12 |     public static let shared = SignalWatch()
 13 |
    :
 88 |     private func didRecieve(signal: Signals.Signal) {
 89 |         return self.queue.async {
 90 |             guard let signalWatchHandlerList = self.signalsWatched[signal.rawValue] else { return }
    |                                                `- warning: capture of 'self' with non-sendable type 'SignalWatch' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 91 |
 92 |             for signalHandler in signalWatchHandlerList {
/Users/admin/builder/spi-builder-workspace/Sources/Signals/SignalWatch.swift:90:68: warning: capture of 'signal' with non-sendable type 'Signals.Signal' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 88 |     private func didRecieve(signal: Signals.Signal) {
 89 |         return self.queue.async {
 90 |             guard let signalWatchHandlerList = self.signalsWatched[signal.rawValue] else { return }
    |                                                                    `- warning: capture of 'signal' with non-sendable type 'Signals.Signal' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 91 |
 92 |             for signalHandler in signalWatchHandlerList {
/Users/admin/builder/spi-builder-workspace/Sources/Signals/Signals.swift:39:14: note: consider making enum 'Signal' conform to the 'Sendable' protocol
 37 | 	/// Common OS Signals
 38 | 	///
 39 | 	public enum Signal {
    |              `- note: consider making enum 'Signal' conform to the 'Sendable' protocol
 40 | 		case hup
 41 | 		case int
Build complete! (16.84s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Signals",
  "name" : "Signals",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "Signals",
      "targets" : [
        "Signals"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "Signals",
      "module_type" : "SwiftTarget",
      "name" : "Signals",
      "path" : "Sources/Signals",
      "product_memberships" : [
        "Signals"
      ],
      "sources" : [
        "SignalWatch.swift",
        "SignalWatchHandler.swift",
        "Signals.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.