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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 HTTP Response Date, reference 1.0.1 (d7f554), with Swift 6.0 for Linux on 26 Nov 2024 23:20:54 UTC.

Swift 6 data race errors: 1

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/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 -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.58.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Saklad5/HTTP-Response-Date.git
Reference: 1.0.1
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/Saklad5/HTTP-Response-Date
 * tag               1.0.1      -> FETCH_HEAD
HEAD is now at d7f5543 Fix errors on non-Darwin platforms
Cloned https://github.com/Saklad5/HTTP-Response-Date.git
Revision (git rev-parse @):
d7f5543aebbb4375ff5432c3962e8b71b3b1d891
SUCCESS checkout https://github.com/Saklad5/HTTP-Response-Date.git at 1.0.1
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.0
Building package at path:  $PWD
https://github.com/Saklad5/HTTP-Response-Date.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$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 -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures 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] Emitting module HTTPResponseDate
/host/spi-builder-workspace/Sources/HTTPResponseDate/HTTPURLResponse+DateHeader.swift:8:21: warning: static property 'dateFormatters' is not concurrency-safe because non-'Sendable' type 'LazyMapSequence<LazySequence<[String]>.Elements, DateFormatter>' (aka 'LazyMapSequence<Array<String>, DateFormatter>') may have shared mutable state; this is an error in the Swift 6 language mode
 6 |
 7 | public extension HTTPURLResponse {
 8 | 	private static let dateFormatters = [
   |                     |- warning: static property 'dateFormatters' is not concurrency-safe because non-'Sendable' type 'LazyMapSequence<LazySequence<[String]>.Elements, DateFormatter>' (aka 'LazyMapSequence<Array<String>, DateFormatter>') may have shared mutable state; this is an error in the Swift 6 language mode
   |                     |- note: annotate 'dateFormatters' 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
 9 | 		// GMT is required in all timestamps, but section 19.3 of RFC 2616 requires clients to convert timestamps incorrectly given with a different time zone into GMT.
10 |
Swift.LazyMapSequence:1:23: note: generic struct 'LazyMapSequence' does not conform to the 'Sendable' protocol
1 | @frozen public struct LazyMapSequence<Base, Element> where Base : Sequence {
  |                       `- note: generic struct 'LazyMapSequence' does not conform to the 'Sendable' protocol
2 |     public typealias Elements = LazyMapSequence<Base, Element>
3 | }
[4/4] Compiling HTTPResponseDate HTTPURLResponse+DateHeader.swift
/host/spi-builder-workspace/Sources/HTTPResponseDate/HTTPURLResponse+DateHeader.swift:8:21: warning: static property 'dateFormatters' is not concurrency-safe because non-'Sendable' type 'LazyMapSequence<LazySequence<[String]>.Elements, DateFormatter>' (aka 'LazyMapSequence<Array<String>, DateFormatter>') may have shared mutable state; this is an error in the Swift 6 language mode
 6 |
 7 | public extension HTTPURLResponse {
 8 | 	private static let dateFormatters = [
   |                     |- warning: static property 'dateFormatters' is not concurrency-safe because non-'Sendable' type 'LazyMapSequence<LazySequence<[String]>.Elements, DateFormatter>' (aka 'LazyMapSequence<Array<String>, DateFormatter>') may have shared mutable state; this is an error in the Swift 6 language mode
   |                     |- note: annotate 'dateFormatters' 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
 9 | 		// GMT is required in all timestamps, but section 19.3 of RFC 2616 requires clients to convert timestamps incorrectly given with a different time zone into GMT.
10 |
Swift.LazyMapSequence:1:23: note: generic struct 'LazyMapSequence' does not conform to the 'Sendable' protocol
1 | @frozen public struct LazyMapSequence<Base, Element> where Base : Sequence {
  |                       `- note: generic struct 'LazyMapSequence' does not conform to the 'Sendable' protocol
2 |     public typealias Elements = LazyMapSequence<Base, Element>
3 | }
Build complete! (8.11s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "HTTP Response Date",
  "name" : "HTTP Response Date",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "HTTPResponseDate",
      "targets" : [
        "HTTPResponseDate"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "HTTPResponseDateTests",
      "module_type" : "SwiftTarget",
      "name" : "HTTPResponseDateTests",
      "path" : "Tests/HTTPResponseDateTests",
      "sources" : [
        "HTTPResponseDateTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "HTTPResponseDate"
      ],
      "type" : "test"
    },
    {
      "c99name" : "HTTPResponseDate",
      "module_type" : "SwiftTarget",
      "name" : "HTTPResponseDate",
      "path" : "Sources/HTTPResponseDate",
      "product_memberships" : [
        "HTTPResponseDate"
      ],
      "sources" : [
        "HTTPURLResponse+DateHeader.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
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
Done.