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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 SemanticVersion, reference main (d8070b), with Swift 6.0 for Linux on 3 Nov 2024 09:15:39 UTC.

Swift 6 data race errors: 1

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$PWD" 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: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/smumriak/SemanticVersion.git
Reference: main
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/smumriak/SemanticVersion
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at d8070b9 Type annotation for regex builder because swift 5.9 fails to infer types in reasonable time
Cloned https://github.com/smumriak/SemanticVersion.git
Revision (git rev-parse @):
d8070b9edb47c0f526128b8e08e87c7709d10ed9
SUCCESS checkout https://github.com/smumriak/SemanticVersion.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.0
Building package at path:  $PWD
https://github.com/smumriak/SemanticVersion.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$PWD" 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
basic-6.0-latest: Pulling from finestructure/spi-images
Digest: sha256:47d26c99ca4f1ac0a332c85fd5b13ff4390e72115219984a57a68fe9d1063a05
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.0-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/4] Compiling SemanticVersion SemanticVersion.swift
/host/spi-builder-workspace/Sources/SemanticVersion/SemanticVersion.swift:233:16: warning: static property 'regex' is not concurrency-safe because non-'Sendable' type 'Regex<(Substring, UInt, UInt?, UInt?, [SemanticVersion.PreReleaseIdentifier]?, String?)>' may have shared mutable state; this is an error in the Swift 6 language mode
231 |     }
232 |
233 |     static let regex = Regex {
    |                |- warning: static property 'regex' is not concurrency-safe because non-'Sendable' type 'Regex<(Substring, UInt, UInt?, UInt?, [SemanticVersion.PreReleaseIdentifier]?, String?)>' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: annotate 'regex' 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
234 |         // Swift compiler has troubles type checking this builder. 5.8.1 takes 30 seconds to do it on my PC. 5.9 errors out with "failed to type check in reasonable type"
235 |         // One could think this is a problem of the past, but actually no. With proper type annotation made by hand build takes only 3 seconds. 10 times better
_StringProcessing.Regex:2:15: note: generic struct 'Regex' does not conform to the 'Sendable' protocol
1 | @available(macOS 13.0, iOS 16.0, watchOS 9.0, tvOS 16.0, *)
2 | public struct Regex<Output> : RegexComponent {
  |               `- note: generic struct 'Regex' does not conform to the 'Sendable' protocol
3 |     public var regex: Regex<Output> { get }
4 |     public typealias RegexOutput = Output
[4/4] Emitting module SemanticVersion
/host/spi-builder-workspace/Sources/SemanticVersion/SemanticVersion.swift:233:16: warning: static property 'regex' is not concurrency-safe because non-'Sendable' type 'Regex<(Substring, UInt, UInt?, UInt?, [SemanticVersion.PreReleaseIdentifier]?, String?)>' may have shared mutable state; this is an error in the Swift 6 language mode
231 |     }
232 |
233 |     static let regex = Regex {
    |                |- warning: static property 'regex' is not concurrency-safe because non-'Sendable' type 'Regex<(Substring, UInt, UInt?, UInt?, [SemanticVersion.PreReleaseIdentifier]?, String?)>' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: annotate 'regex' 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
234 |         // Swift compiler has troubles type checking this builder. 5.8.1 takes 30 seconds to do it on my PC. 5.9 errors out with "failed to type check in reasonable type"
235 |         // One could think this is a problem of the past, but actually no. With proper type annotation made by hand build takes only 3 seconds. 10 times better
_StringProcessing.Regex:2:15: note: generic struct 'Regex' does not conform to the 'Sendable' protocol
1 | @available(macOS 13.0, iOS 16.0, watchOS 9.0, tvOS 16.0, *)
2 | public struct Regex<Output> : RegexComponent {
  |               `- note: generic struct 'Regex' does not conform to the 'Sendable' protocol
3 |     public var regex: Regex<Output> { get }
4 |     public typealias RegexOutput = Output
Build complete! (10.80s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SemanticVersion",
  "name" : "SemanticVersion",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SemanticVersion",
      "targets" : [
        "SemanticVersion"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SemanticVersionTests",
      "module_type" : "SwiftTarget",
      "name" : "SemanticVersionTests",
      "path" : "Tests/SemanticVersionTests",
      "sources" : [
        "SemanticVersionTests.swift"
      ],
      "target_dependencies" : [
        "SemanticVersion"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SemanticVersion",
      "module_type" : "SwiftTarget",
      "name" : "SemanticVersion",
      "path" : "Sources/SemanticVersion",
      "product_memberships" : [
        "SemanticVersion"
      ],
      "sources" : [
        "SemanticVersion.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
basic-6.0-latest: Pulling from finestructure/spi-images
Digest: sha256:47d26c99ca4f1ac0a332c85fd5b13ff4390e72115219984a57a68fe9d1063a05
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.0-latest
Done.