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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 EventHub, reference master (b1427c), with Swift 6.0 for macOS (SPM) on 8 Oct 2024 10:40:30 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.0.0.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: 4.55.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/imbue11235/EventHub.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/imbue11235/EventHub
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at b1427c8 Updated readme
Cloned https://github.com/imbue11235/EventHub.git
Revision (git rev-parse @):
b1427c8ee0c2f3bb1223a725deeaced32da05ab2
SUCCESS checkout https://github.com/imbue11235/EventHub.git at master
========================================
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": "eventhub",
      "name": "EventHub",
      "url": "https://github.com/imbue11235/EventHub.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/EventHub",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/imbue11235/EventHub.git
[1/41] Fetching eventhub
Fetched https://github.com/imbue11235/EventHub.git from cache (0.62s)
Creating working copy for https://github.com/imbue11235/EventHub.git
Working copy of https://github.com/imbue11235/EventHub.git resolved at master (b1427c8)
warning: '.resolve-product-dependencies': dependency 'eventhub' 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/imbue11235/EventHub.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.0.0.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--4A847ED0836F2485.txt
[3/8] Compiling EventHub EventHub+SubscriptionType.swift
[4/8] Compiling EventHub EventHub.swift
/Users/admin/builder/spi-builder-workspace/Sources/EventHub/EventHub.swift:30:17: warning: capture of 'self' with non-sendable type 'EventHub' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 1 | import Foundation
 2 |
 3 | final public class EventHub {
   |                    `- note: class 'EventHub' does not conform to the 'Sendable' protocol
 4 |
 5 |     public typealias Callback<T: Event> = (T) -> ()
   :
28 |         self.subscriptions.forEach { subscriber in
29 |             self.queue.async {
30 |                 self.notify(a: subscriber, of: event)
   |                 `- warning: capture of 'self' with non-sendable type 'EventHub' in a `@Sendable` closure; this is an error in the Swift 6 language mode
31 |             }
32 |         }
/Users/admin/builder/spi-builder-workspace/Sources/EventHub/EventHub.swift:30:32: warning: capture of 'subscriber' with non-sendable type 'EventHub.Subscriber' in a `@Sendable` closure; this is an error in the Swift 6 language mode
28 |         self.subscriptions.forEach { subscriber in
29 |             self.queue.async {
30 |                 self.notify(a: subscriber, of: event)
   |                                `- warning: capture of 'subscriber' with non-sendable type 'EventHub.Subscriber' in a `@Sendable` closure; this is an error in the Swift 6 language mode
31 |             }
32 |         }
/Users/admin/builder/spi-builder-workspace/Sources/EventHub/EventHub+Subscriber.swift:2:21: note: consider making struct 'Subscriber' conform to the 'Sendable' protocol
1 | extension EventHub {
2 |     internal struct Subscriber {
  |                     `- note: consider making struct 'Subscriber' conform to the 'Sendable' protocol
3 |         public let identifier: String
4 |         public let handler: Any
/Users/admin/builder/spi-builder-workspace/Sources/EventHub/EventHub.swift:30:48: warning: capture of 'event' with non-sendable type 'T' in a `@Sendable` closure; this is an error in the Swift 6 language mode
25 |     }
26 |
27 |     public func trigger<T: Event>(event: T) {
   |                         `- note: consider making generic parameter 'T' conform to the 'Sendable' protocol
28 |         self.subscriptions.forEach { subscriber in
29 |             self.queue.async {
30 |                 self.notify(a: subscriber, of: event)
   |                                                `- warning: capture of 'event' with non-sendable type 'T' in a `@Sendable` closure; this is an error in the Swift 6 language mode
31 |             }
32 |         }
[5/8] Compiling EventHub Event.swift
[6/8] Compiling EventHub EventHub+Subscriber.swift
[7/8] Compiling EventHub Listener.swift
[8/8] Emitting module EventHub
Build complete! (6.55s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "EventHub",
  "name" : "EventHub",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "EventHub",
      "targets" : [
        "EventHub"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "EventHubTests",
      "module_type" : "SwiftTarget",
      "name" : "EventHubTests",
      "path" : "Tests/EventHubTests",
      "sources" : [
        "EventHubTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "EventHub"
      ],
      "type" : "test"
    },
    {
      "c99name" : "EventHub",
      "module_type" : "SwiftTarget",
      "name" : "EventHub",
      "path" : "Sources/EventHub",
      "product_memberships" : [
        "EventHub"
      ],
      "sources" : [
        "Event.swift",
        "EventHub+Subscriber.swift",
        "EventHub+SubscriptionType.swift",
        "EventHub.swift",
        "Listener.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
Done.