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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 CustomButton 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
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Builder version: 4.40.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/sindresorhus/CustomButton.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/sindresorhus/CustomButton
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at e7c7250 Tweaks
Cloned https://github.com/sindresorhus/CustomButton.git
Revision (git rev-parse @):
e7c72500005ae4f3ca29c102ad7f8175c68c396b
SUCCESS checkout https://github.com/sindresorhus/CustomButton.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/sindresorhus/CustomButton.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
[3/5] Compiling CustomButton Utilities.swift
/Users/admin/builder/spi-builder-workspace/Sources/CustomButton/Utilities.swift:60:28: warning: main actor-isolated property 'bounds' can not be referenced from a non-isolated autoclosure; this is an error in the Swift 6 language mode
 58 | 	) {
 59 | 		self.view = view
 60 | 		self.rect = rect ?? view.bounds
    |                            `- warning: main actor-isolated property 'bounds' can not be referenced from a non-isolated autoclosure; this is an error in the Swift 6 language mode
 61 | 		self.options = options
 62 | 	}
AppKit.NSView:76:25: note: property declared here
 74 |     @available(swift, obsoleted: 3, renamed: "rotate(byDegrees:)")
 75 |     open func rotateByAngle(_ angle: CGFloat)
 76 |     @MainActor open var bounds: NSRect { get set }
    |                         `- note: property declared here
 77 |     open var isFlipped: Bool { get }
 78 |     @available(swift, obsoleted: 3, renamed: "isFlipped")
/Users/admin/builder/spi-builder-workspace/Sources/CustomButton/Utilities.swift:70:10: warning: call to main actor-isolated instance method 'removeTrackingArea' in a synchronous nonisolated context; this is an error in the Swift 6 language mode
 66 | 	- Note: This should be called in your `NSView#updateTrackingAreas()` method.
 67 | 	*/
 68 | 	func update() {
    |       `- note: add '@MainActor' to make instance method 'update()' part of global actor 'MainActor'
 69 | 		if let trackingArea {
 70 | 			view?.removeTrackingArea(trackingArea)
    |          `- warning: call to main actor-isolated instance method 'removeTrackingArea' in a synchronous nonisolated context; this is an error in the Swift 6 language mode
 71 | 		}
 72 |
AppKit.NSView:5:26: note: calls to instance method 'removeTrackingArea' from outside of its actor context are implicitly asynchronous
 3 |     @MainActor open func addTrackingArea(_ trackingArea: NSTrackingArea)
 4 |     @available(macOS 10.5, *)
 5 |     @MainActor open func removeTrackingArea(_ trackingArea: NSTrackingArea)
   |                          `- note: calls to instance method 'removeTrackingArea' from outside of its actor context are implicitly asynchronous
 6 |     @available(macOS 10.5, *)
 7 |     open var trackingAreas: [NSTrackingArea] { get }
/Users/admin/builder/spi-builder-workspace/Sources/CustomButton/Utilities.swift:83:9: warning: call to main actor-isolated instance method 'addTrackingArea' in a synchronous nonisolated context; this is an error in the Swift 6 language mode
 66 | 	- Note: This should be called in your `NSView#updateTrackingAreas()` method.
 67 | 	*/
 68 | 	func update() {
    |       `- note: add '@MainActor' to make instance method 'update()' part of global actor 'MainActor'
 69 | 		if let trackingArea {
 70 | 			view?.removeTrackingArea(trackingArea)
    :
 81 | 		)
 82 |
 83 | 		view?.addTrackingArea(newTrackingArea)
    |         `- warning: call to main actor-isolated instance method 'addTrackingArea' in a synchronous nonisolated context; this is an error in the Swift 6 language mode
 84 | 		trackingArea = newTrackingArea
 85 | 	}
AppKit.NSView:3:26: note: calls to instance method 'addTrackingArea' from outside of its actor context are implicitly asynchronous
 1 | extension NSView {
 2 |     @available(macOS 10.5, *)
 3 |     @MainActor open func addTrackingArea(_ trackingArea: NSTrackingArea)
   |                          `- note: calls to instance method 'addTrackingArea' from outside of its actor context are implicitly asynchronous
 4 |     @available(macOS 10.5, *)
 5 |     @MainActor open func removeTrackingArea(_ trackingArea: NSTrackingArea)
/Users/admin/builder/spi-builder-workspace/Sources/CustomButton/Utilities.swift:70:10: warning: sending 'trackingArea' risks causing data races; this is an error in the Swift 6 language mode
 68 | 	func update() {
 69 | 		if let trackingArea {
 70 | 			view?.removeTrackingArea(trackingArea)
    |          |- warning: sending 'trackingArea' risks causing data races; this is an error in the Swift 6 language mode
    |          `- note: sending task-isolated 'trackingArea' to main actor-isolated instance method 'removeTrackingArea' risks causing data races between main actor-isolated and task-isolated uses
 71 | 		}
 72 |
/Users/admin/builder/spi-builder-workspace/Sources/CustomButton/Utilities.swift:83:9: warning: sending 'newTrackingArea' risks causing data races; this is an error in the Swift 6 language mode
 81 | 		)
 82 |
 83 | 		view?.addTrackingArea(newTrackingArea)
    |         |- warning: sending 'newTrackingArea' risks causing data races; this is an error in the Swift 6 language mode
    |         `- note: sending 'newTrackingArea' to main actor-isolated instance method 'addTrackingArea' risks causing data races between main actor-isolated and local nonisolated uses
 84 | 		trackingArea = newTrackingArea
    |                  `- note: access can happen concurrently
 85 | 	}
 86 | }
[4/5] Emitting module CustomButton
[5/5] Compiling CustomButton CustomButton.swift
Build complete! (22.75s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "CustomButton",
  "name" : "CustomButton",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.13"
    }
  ],
  "products" : [
    {
      "name" : "CustomButton",
      "targets" : [
        "CustomButton"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CustomButton",
      "module_type" : "SwiftTarget",
      "name" : "CustomButton",
      "path" : "Sources/CustomButton",
      "product_memberships" : [
        "CustomButton"
      ],
      "sources" : [
        "CustomButton.swift",
        "Utilities.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.