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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 master (29db16), with Swift 6.0 for Linux on 26 Nov 2024 23:20:59 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 -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: 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/Saklad5/HTTP-Response-Date
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 29db169 Add Foundation.HTTPURLResponse.date(forDateValue:)
Cloned https://github.com/Saklad5/HTTP-Response-Date.git
Revision (git rev-parse @):
29db169d66a85f56e62f49a31687df7a20287c71
SUCCESS checkout https://github.com/Saklad5/HTTP-Response-Date.git at master
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.0
Building package at path:  $PWD
https://github.com/Saklad5/HTTP-Response-Date.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$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 -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:18:24: warning: static property 'cache' is not concurrency-safe because non-'Sendable' type 'NSCache<NSString, DateFormatter>' may have shared mutable state; this is an error in the Swift 6 language mode
16 |     case asctime = "EEE MMM d HH:mm:ss yyyy"
17 |
18 |     private static let cache = NSCache<NSString, DateFormatter>()
   |                        |- warning: static property 'cache' is not concurrency-safe because non-'Sendable' type 'NSCache<NSString, DateFormatter>' may have shared mutable state; this is an error in the Swift 6 language mode
   |                        |- note: annotate 'cache' 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
19 |     var formatter: DateFormatter {
20 |       if let result = Self.cache.object(forKey: rawValue) {
Foundation.NSCache:1:12: note: generic class 'NSCache' does not conform to the 'Sendable' protocol
 1 | open class NSCache<KeyType, ObjectType> : NSObject where KeyType : AnyObject, ObjectType : AnyObject {
   |            `- note: generic class 'NSCache' does not conform to the 'Sendable' protocol
 2 |     open var name: String
 3 |     open var totalCostLimit: Int
[4/4] Compiling HTTPResponseDate HTTPURLResponse+DateHeader.swift
/host/spi-builder-workspace/Sources/HTTPResponseDate/HTTPURLResponse+DateHeader.swift:18:24: warning: static property 'cache' is not concurrency-safe because non-'Sendable' type 'NSCache<NSString, DateFormatter>' may have shared mutable state; this is an error in the Swift 6 language mode
16 |     case asctime = "EEE MMM d HH:mm:ss yyyy"
17 |
18 |     private static let cache = NSCache<NSString, DateFormatter>()
   |                        |- warning: static property 'cache' is not concurrency-safe because non-'Sendable' type 'NSCache<NSString, DateFormatter>' may have shared mutable state; this is an error in the Swift 6 language mode
   |                        |- note: annotate 'cache' 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
19 |     var formatter: DateFormatter {
20 |       if let result = Self.cache.object(forKey: rawValue) {
Foundation.NSCache:1:12: note: generic class 'NSCache' does not conform to the 'Sendable' protocol
 1 | open class NSCache<KeyType, ObjectType> : NSObject where KeyType : AnyObject, ObjectType : AnyObject {
   |            `- note: generic class 'NSCache' does not conform to the 'Sendable' protocol
 2 |     open var name: String
 3 |     open var totalCostLimit: Int
Build complete! (8.60s)
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.