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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 SwiftPublicSuffixList, reference 1.1.6 (e59868), with Swift 6.0 for macOS (SPM) on 14 Sep 2024 17:23:59 UTC.

Swift 6 data race errors: 2

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.0.0-Release.Candidate.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

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RunAll
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Builder version: 4.53.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/ekscrypto/SwiftPublicSuffixList.git
Reference: 1.1.6
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/ekscrypto/SwiftPublicSuffixList
 * tag               1.1.6      -> FETCH_HEAD
HEAD is now at e59868f Update 2022-07-12 19:31
Cloned https://github.com/ekscrypto/SwiftPublicSuffixList.git
Revision (git rev-parse @):
e59868f29739bb82e5f0db5fcb494e834802403b
SUCCESS checkout https://github.com/ekscrypto/SwiftPublicSuffixList.git at 1.1.6
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Build
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Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/ekscrypto/SwiftPublicSuffixList.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.0.0-Release.Candidate.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/3] Write sources
[1/3] Copying registry.json
[2/3] Write swift-version-117DEE11B69C53C9.txt
[4/9] Compiling SwiftPublicSuffixList PublicSuffixOnlineRegistryFetcher.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftPublicSuffixList/PublicSuffixList.swift:20:23: warning: static property 'logger' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 18 |     public typealias URLRequestHandler = (URLRequest, @escaping URLRequestCompletion) -> Void
 19 |     public typealias Logger = (String) -> Void
 20 |     public static var logger: Logger = { print($0) }
    |                       |- warning: static property 'logger' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'logger' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'logger' 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
 21 |
 22 |     public static let defaultUrlRequestHandler: URLRequestHandler = { request, completion in
<unknown>:0: note: a function type must be marked '@Sendable' to conform to 'Sendable'
/Users/admin/builder/spi-builder-workspace/Sources/SwiftPublicSuffixList/PublicSuffixList.swift:22:23: warning: static property 'defaultUrlRequestHandler' is not concurrency-safe because non-'Sendable' type 'PublicSuffixList.URLRequestHandler' (aka '(URLRequest, @escaping (Optional<Data>, Optional<URLResponse>, Optional<any Error>) -> ()) -> ()') may have shared mutable state; this is an error in the Swift 6 language mode
 20 |     public static var logger: Logger = { print($0) }
 21 |
 22 |     public static let defaultUrlRequestHandler: URLRequestHandler = { request, completion in
    |                       |- warning: static property 'defaultUrlRequestHandler' is not concurrency-safe because non-'Sendable' type 'PublicSuffixList.URLRequestHandler' (aka '(URLRequest, @escaping (Optional<Data>, Optional<URLResponse>, Optional<any Error>) -> ()) -> ()') may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'defaultUrlRequestHandler' 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
 23 |         URLSession.shared.dataTask(with: request, completionHandler: completion).resume()
 24 |     }
[5/9] Compiling SwiftPublicSuffixList PublicSuffixRulesRegistry.swift
[6/9] Compiling SwiftPublicSuffixList PublicSuffixList.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftPublicSuffixList/PublicSuffixList.swift:20:23: warning: static property 'logger' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 18 |     public typealias URLRequestHandler = (URLRequest, @escaping URLRequestCompletion) -> Void
 19 |     public typealias Logger = (String) -> Void
 20 |     public static var logger: Logger = { print($0) }
    |                       |- warning: static property 'logger' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'logger' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'logger' 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
 21 |
 22 |     public static let defaultUrlRequestHandler: URLRequestHandler = { request, completion in
<unknown>:0: note: a function type must be marked '@Sendable' to conform to 'Sendable'
/Users/admin/builder/spi-builder-workspace/Sources/SwiftPublicSuffixList/PublicSuffixList.swift:22:23: warning: static property 'defaultUrlRequestHandler' is not concurrency-safe because non-'Sendable' type 'PublicSuffixList.URLRequestHandler' (aka '(URLRequest, @escaping (Optional<Data>, Optional<URLResponse>, Optional<any Error>) -> ()) -> ()') may have shared mutable state; this is an error in the Swift 6 language mode
 20 |     public static var logger: Logger = { print($0) }
 21 |
 22 |     public static let defaultUrlRequestHandler: URLRequestHandler = { request, completion in
    |                       |- warning: static property 'defaultUrlRequestHandler' is not concurrency-safe because non-'Sendable' type 'PublicSuffixList.URLRequestHandler' (aka '(URLRequest, @escaping (Optional<Data>, Optional<URLResponse>, Optional<any Error>) -> ()) -> ()') may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'defaultUrlRequestHandler' 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
 23 |         URLSession.shared.dataTask(with: request, completionHandler: completion).resume()
 24 |     }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftPublicSuffixList/PublicSuffixList.swift:23:70: warning: passing non-sendable parameter 'completion' to function expecting a @Sendable closure
 20 |     public static var logger: Logger = { print($0) }
 21 |
 22 |     public static let defaultUrlRequestHandler: URLRequestHandler = { request, completion in
    |                                                                                `- note: parameter 'completion' is implicitly non-sendable
 23 |         URLSession.shared.dataTask(with: request, completionHandler: completion).resume()
    |                                                                      `- warning: passing non-sendable parameter 'completion' to function expecting a @Sendable closure
 24 |     }
 25 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftPublicSuffixList/PublicSuffixList.swift:167:144: warning: capture of 'requestHandler' with non-sendable type 'PublicSuffixList.URLRequestHandler' (aka '(URLRequest, @escaping (Optional<Data>, Optional<URLResponse>, Optional<any Error>) -> ()) -> ()') in a `@Sendable` closure; this is an error in the Swift 6 language mode
165 |         updateThread = Thread { [weak self] in
166 |             var success: Bool = false
167 |             if let onlineRules = PublicSuffixListOnlineRegistryFetcher.fetch(logger: Self.logger, cachePolicy: cachePolicy, urlRequestHandler: requestHandler) {
    |                                                                                                                                                |- warning: capture of 'requestHandler' with non-sendable type 'PublicSuffixList.URLRequestHandler' (aka '(URLRequest, @escaping (Optional<Data>, Optional<URLResponse>, Optional<any Error>) -> ()) -> ()') in a `@Sendable` closure; this is an error in the Swift 6 language mode
    |                                                                                                                                                `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
168 |                 self?.rules = onlineRules
169 |                 Self.logger("\(Self.self) Public Suffix List updated")
/Users/admin/builder/spi-builder-workspace/Sources/SwiftPublicSuffixList/PublicSuffixList.swift:168:17: warning: capture of 'self' with non-sendable type 'PublicSuffixList?' in a `@Sendable` closure; this is an error in the Swift 6 language mode
 13 | import Foundation
 14 |
 15 | final public class PublicSuffixList {
    |                    `- note: class 'PublicSuffixList' does not conform to the 'Sendable' protocol
 16 |
 17 |     public typealias URLRequestCompletion = (Data?, URLResponse?, Error?) -> Void
    :
166 |             var success: Bool = false
167 |             if let onlineRules = PublicSuffixListOnlineRegistryFetcher.fetch(logger: Self.logger, cachePolicy: cachePolicy, urlRequestHandler: requestHandler) {
168 |                 self?.rules = onlineRules
    |                 `- warning: capture of 'self' with non-sendable type 'PublicSuffixList?' in a `@Sendable` closure; this is an error in the Swift 6 language mode
169 |                 Self.logger("\(Self.self) Public Suffix List updated")
170 |                 success = true
/Users/admin/builder/spi-builder-workspace/Sources/SwiftPublicSuffixList/PublicSuffixList.swift:172:13: warning: capture of 'completion' with non-sendable type '(Bool) -> Void' in a `@Sendable` closure; this is an error in the Swift 6 language mode
170 |                 success = true
171 |             }
172 |             completion(success)
    |             |- warning: capture of 'completion' with non-sendable type '(Bool) -> Void' in a `@Sendable` closure; this is an error in the Swift 6 language mode
    |             `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
173 |             self?.updateThread = nil
174 |         }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftPublicSuffixList/PublicSuffixList.swift:91:26: warning: sending 'list' risks causing data races; this is an error in the Swift 6 language mode
 89 |         await withCheckedContinuation({ continuation in
 90 |             let list = PublicSuffixList(source: source, urlRequestHandler: urlRequestHandler)
 91 |             continuation.resume(returning: list)
    |                          |- warning: sending 'list' risks causing data races; this is an error in the Swift 6 language mode
    |                          `- note: task-isolated 'list' is passed as a 'sending' parameter; Uses in callee may race with later task-isolated uses
 92 |         })
 93 |     }
[7/9] Compiling SwiftPublicSuffixList resource_bundle_accessor.swift
[8/9] Emitting module SwiftPublicSuffixList
/Users/admin/builder/spi-builder-workspace/Sources/SwiftPublicSuffixList/PublicSuffixList.swift:20:23: warning: static property 'logger' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 18 |     public typealias URLRequestHandler = (URLRequest, @escaping URLRequestCompletion) -> Void
 19 |     public typealias Logger = (String) -> Void
 20 |     public static var logger: Logger = { print($0) }
    |                       |- warning: static property 'logger' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'logger' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'logger' 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
 21 |
 22 |     public static let defaultUrlRequestHandler: URLRequestHandler = { request, completion in
<unknown>:0: note: a function type must be marked '@Sendable' to conform to 'Sendable'
/Users/admin/builder/spi-builder-workspace/Sources/SwiftPublicSuffixList/PublicSuffixList.swift:22:23: warning: static property 'defaultUrlRequestHandler' is not concurrency-safe because non-'Sendable' type 'PublicSuffixList.URLRequestHandler' (aka '(URLRequest, @escaping (Optional<Data>, Optional<URLResponse>, Optional<any Error>) -> ()) -> ()') may have shared mutable state; this is an error in the Swift 6 language mode
 20 |     public static var logger: Logger = { print($0) }
 21 |
 22 |     public static let defaultUrlRequestHandler: URLRequestHandler = { request, completion in
    |                       |- warning: static property 'defaultUrlRequestHandler' is not concurrency-safe because non-'Sendable' type 'PublicSuffixList.URLRequestHandler' (aka '(URLRequest, @escaping (Optional<Data>, Optional<URLResponse>, Optional<any Error>) -> ()) -> ()') may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'defaultUrlRequestHandler' 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
 23 |         URLSession.shared.dataTask(with: request, completionHandler: completion).resume()
 24 |     }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftPublicSuffixList/PublicSuffixList.swift:23:70: warning: passing non-sendable parameter 'completion' to function expecting a @Sendable closure
 20 |     public static var logger: Logger = { print($0) }
 21 |
 22 |     public static let defaultUrlRequestHandler: URLRequestHandler = { request, completion in
    |                                                                                `- note: parameter 'completion' is implicitly non-sendable
 23 |         URLSession.shared.dataTask(with: request, completionHandler: completion).resume()
    |                                                                      `- warning: passing non-sendable parameter 'completion' to function expecting a @Sendable closure
 24 |     }
 25 |
[9/9] Compiling SwiftPublicSuffixList PublicSuffixMatcher.swift
Build complete! (8.04s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftPublicSuffixList",
  "name" : "SwiftPublicSuffixList",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.12"
    },
    {
      "name" : "ios",
      "version" : "11.0"
    },
    {
      "name" : "tvos",
      "version" : "11.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftPublicSuffixList",
      "targets" : [
        "SwiftPublicSuffixList"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftPublicSuffixListTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftPublicSuffixListTests",
      "path" : "Tests/SwiftPublicSuffixListTests",
      "sources" : [
        "LoadSaveUpdateTests.swift",
        "SwiftPublicSuffixListTests.swift"
      ],
      "target_dependencies" : [
        "SwiftPublicSuffixList"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftPublicSuffixList",
      "module_type" : "SwiftTarget",
      "name" : "SwiftPublicSuffixList",
      "path" : "Sources/SwiftPublicSuffixList",
      "product_memberships" : [
        "SwiftPublicSuffixList"
      ],
      "resources" : [
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/SwiftPublicSuffixList/registry.json",
          "rule" : {
            "process" : {
            }
          }
        }
      ],
      "sources" : [
        "PublicSuffixList.swift",
        "PublicSuffixMatcher.swift",
        "PublicSuffixOnlineRegistryFetcher.swift",
        "PublicSuffixRulesRegistry.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
Done.