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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 Prex with Swift 6.0 for Linux.

Swift 6 data race errors: 0

Build Command

bash -c docker run --rm -v "checkouts-4609320-1":/host -w "$workDir" registry.gitlab.com/finestructure/spi-images:basic-6.0-latest swift build --triple x86_64-unknown-linux-gnu -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.40.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/marty-suzuki/Prex.git
Reference: master
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/marty-suzuki/Prex
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at d6c198f update podspec
Cloned https://github.com/marty-suzuki/Prex.git
Revision (git rev-parse @):
d6c198fc96e0155f658be55a1798aaa287acdc1b
SUCCESS checkout https://github.com/marty-suzuki/Prex.git at master
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.0
Building package at path:  $workDir
https://github.com/marty-suzuki/Prex.git
Running build ...
bash -c docker run --rm -v "checkouts-4609320-1":/host -w "$workDir" registry.gitlab.com/finestructure/spi-images:basic-6.0-latest swift build --triple x86_64-unknown-linux-gnu -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete 2>&1
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/13] Compiling Prex Subscription.swift
[4/14] Compiling Prex StateChange.swift
[5/14] Compiling Prex State.swift
[6/14] Emitting module Prex
[7/14] Compiling Prex Action.swift
[8/14] Compiling Prex Dispatcher.swift
[9/14] Compiling Prex PubSub.swift
[10/14] Compiling Prex Presenter.swift
/host/spi-builder-workspace/Sources/Prex/Presenter.swift:46:21: warning: capture of '_view' with non-sendable type '_WeakView<View>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
44 |             } else {
45 |                 DispatchQueue.main.async {
46 |                     _view.reflect(change: change)
   |                     `- warning: capture of '_view' with non-sendable type '_WeakView<View>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
47 |                 }
48 |             }
   :
66 | // MARK: - _WeakView
67 |
68 | private struct _WeakView<View: Prex.View> {
   |                `- note: consider making generic struct '_WeakView' conform to the 'Sendable' protocol
69 |
70 |     private weak var view: View?
/host/spi-builder-workspace/Sources/Prex/Presenter.swift:46:43: warning: capture of 'change' with non-sendable type 'StateChange<State>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
44 |             } else {
45 |                 DispatchQueue.main.async {
46 |                     _view.reflect(change: change)
   |                                           `- warning: capture of 'change' with non-sendable type 'StateChange<State>' in a `@Sendable` closure; this is an error in the Swift 6 language mode
47 |                 }
48 |             }
/host/spi-builder-workspace/Sources/Prex/StateChange.swift:11:15: note: consider making generic struct 'StateChange' conform to the 'Sendable' protocol
 9 | /// Contains new and old value
10 | @dynamicMemberLookup
11 | public struct StateChange<State: Prex.State> {
   |               `- note: consider making generic struct 'StateChange' conform to the 'Sendable' protocol
12 |
13 |     /// New value of changes
/host/spi-builder-workspace/Sources/Prex/Presenter.swift:46:21: warning: sending '_view' risks causing data races; this is an error in the Swift 6 language mode
44 |             } else {
45 |                 DispatchQueue.main.async {
46 |                     _view.reflect(change: change)
   |                     |- warning: sending '_view' risks causing data races; this is an error in the Swift 6 language mode
   |                     `- note: task-isolated '_view' is captured by a main actor-isolated closure. main actor-isolated uses in closure may race against later nonisolated uses
47 |                 }
48 |             }
/host/spi-builder-workspace/Sources/Prex/Presenter.swift:46:43: warning: sending 'change' risks causing data races; this is an error in the Swift 6 language mode
44 |             } else {
45 |                 DispatchQueue.main.async {
46 |                     _view.reflect(change: change)
   |                                           |- warning: sending 'change' risks causing data races; this is an error in the Swift 6 language mode
   |                                           `- note: task-isolated 'change' is captured by a main actor-isolated closure. main actor-isolated uses in closure may race against later nonisolated uses
47 |                 }
48 |             }
[11/14] Compiling Prex View.swift
[12/14] Compiling Prex Mutation.swift
[13/14] Compiling Prex Flux.swift
[14/14] Compiling Prex Store.swift
Build complete! (12.83s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Prex",
  "name" : "Prex",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Prex",
      "targets" : [
        "Prex"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "PrexTests",
      "module_type" : "SwiftTarget",
      "name" : "PrexTests",
      "path" : "Tests/PrexTests",
      "sources" : [
        "Components.swift",
        "DispatcherTests.swift",
        "PresenterTests.swift",
        "PubSubTests.swift",
        "StoreTests.swift",
        "ValueChangeTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "Prex"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Prex",
      "module_type" : "SwiftTarget",
      "name" : "Prex",
      "path" : "Sources/Prex",
      "product_memberships" : [
        "Prex"
      ],
      "sources" : [
        "Flux/Action.swift",
        "Flux/Dispatcher.swift",
        "Flux/Flux.swift",
        "Flux/Store.swift",
        "Flux/View.swift",
        "Mutation.swift",
        "Presenter.swift",
        "State.swift",
        "StateChange.swift",
        "Subscription.swift",
        "internal/PubSub.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.2"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.