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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 Watchdog with Swift 6.0 for macOS (SPM).

Swift 6 data race errors: 0

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/wojteklu/Watchdog.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/wojteklu/Watchdog
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 2df9acf Add support for SwiftPM (#51)
Cloned https://github.com/wojteklu/Watchdog.git
Revision (git rev-parse @):
2df9acf8472a1f1146fc0f41e37d3f424dba72d6
SUCCESS checkout https://github.com/wojteklu/Watchdog.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/wojteklu/Watchdog.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
[3/4] Compiling Watchdog Watchdog.swift
/Users/admin/builder/spi-builder-workspace/Classes/Watchdog.swift:70:17: warning: capture of 'self' with non-sendable type 'PingThread' in a `@Sendable` closure; this is an error in the Swift 6 language mode
37 | }
38 |
39 | private final class PingThread: Thread {
   |                     `- note: class 'PingThread' does not conform to the 'Sendable' protocol
40 |     fileprivate var pingTaskIsRunning: Bool {
41 |         get {
   :
68 |             pingTaskIsRunning = true
69 |             DispatchQueue.main.async {
70 |                 self.pingTaskIsRunning = false
   |                 `- warning: capture of 'self' with non-sendable type 'PingThread' in a `@Sendable` closure; this is an error in the Swift 6 language mode
71 |                 self.semaphore.signal()
72 |             }
/Users/admin/builder/spi-builder-workspace/Classes/Watchdog.swift:70:17: warning: sending 'self' risks causing data races; this is an error in the Swift 6 language mode
68 |             pingTaskIsRunning = true
69 |             DispatchQueue.main.async {
70 |                 self.pingTaskIsRunning = false
   |                 |- warning: sending 'self' risks causing data races; this is an error in the Swift 6 language mode
   |                 `- note: task-isolated 'self' is captured by a main actor-isolated closure. main actor-isolated uses in closure may race against later nonisolated uses
71 |                 self.semaphore.signal()
72 |             }
[4/4] Emitting module Watchdog
Build complete! (16.21s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Watchdog",
  "name" : "Watchdog",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Watchdog",
      "targets" : [
        "Watchdog"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "Watchdog",
      "module_type" : "SwiftTarget",
      "name" : "Watchdog",
      "path" : "Classes",
      "product_memberships" : [
        "Watchdog"
      ],
      "sources" : [
        "Watchdog.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.2"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.