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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 RetryingOperation, reference 1.1.8 (c64f98), with Swift 6.1 for macOS (SPM) on 27 Apr 2025 08:22:44 UTC.

Swift 6 data race errors: 2

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -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

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/happn-app/RetryingOperation.git
Reference: 1.1.8
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/happn-app/RetryingOperation
 * tag               1.1.8      -> FETCH_HEAD
HEAD is now at c64f989 Make the RetryHelper methods mutating
Cloned https://github.com/happn-app/RetryingOperation.git
Revision (git rev-parse @):
c64f98966916fc184f7575dd97e2eba9962a3d33
SUCCESS checkout https://github.com/happn-app/RetryingOperation.git at 1.1.8
Fetching https://github.com/apple/swift-log.git from cache
Fetched https://github.com/apple/swift-log.git from cache (0.59s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.4.0 (1.18s)
Creating working copy for https://github.com/apple/swift-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.4.0
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "dependencies": [
    {
      "identity": "retryingoperation",
      "name": "RetryingOperation",
      "url": "https://github.com/happn-app/RetryingOperation.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/RetryingOperation",
      "dependencies": [
        {
          "identity": "swift-log",
          "name": "swift-log",
          "url": "https://github.com/apple/swift-log.git",
          "version": "1.6.3",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-log",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/happn-app/RetryingOperation.git
[1/395] Fetching retryingoperation
Fetched https://github.com/happn-app/RetryingOperation.git from cache (0.71s)
Fetching https://github.com/apple/swift-log.git from cache
Fetched https://github.com/apple/swift-log.git from cache (0.52s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.6.3 (1.05s)
Creating working copy for https://github.com/happn-app/RetryingOperation.git
Working copy of https://github.com/happn-app/RetryingOperation.git resolved at 1.1.8 (c64f989)
Creating working copy for https://github.com/apple/swift-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.6.3
warning: '.resolve-product-dependencies': dependency 'retryingoperation' is not used by any target
Found 1 product dependencies
  - swift-log
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/happn-app/RetryingOperation.git
https://github.com/happn-app/RetryingOperation.git
{
  "dependencies" : [
    {
      "identity" : "swift-log",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.2.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-log.git"
    }
  ],
  "manifest_display_name" : "RetryingOperation",
  "name" : "RetryingOperation",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "RetryingOperation",
      "targets" : [
        "RetryingOperation"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "RetryingOperationTests",
      "module_type" : "SwiftTarget",
      "name" : "RetryingOperationTests",
      "path" : "Tests/RetryingOperationTests",
      "sources" : [
        "Helpers/BasicAsynchronousRetryingOperation.swift",
        "Helpers/BasicSynchronousRetryableOperation.swift",
        "Helpers/BasicSynchronousRetryingOperation.swift",
        "Helpers/CustomRetrySynchronousRetryingOperation.swift",
        "RetryingOperationTests.swift"
      ],
      "target_dependencies" : [
        "RetryingOperation"
      ],
      "type" : "test"
    },
    {
      "c99name" : "RetryingOperation",
      "module_type" : "SwiftTarget",
      "name" : "RetryingOperation",
      "path" : "Sources/RetryingOperation",
      "product_dependencies" : [
        "Logging"
      ],
      "product_memberships" : [
        "RetryingOperation"
      ],
      "sources" : [
        "RetryHelper.swift",
        "RetryingOperation.swift",
        "RetryingOperationConfig.swift",
        "WrappedRetryingOperation.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -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
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version-2F0A5646E1D333AE.txt
[4/7] Compiling Logging LogHandler.swift
[5/7] Compiling Logging Locks.swift
[6/7] Compiling Logging Logging.swift
[7/7] Emitting module Logging
[8/12] Compiling RetryingOperation WrappedRetryingOperation.swift
[9/12] Compiling RetryingOperation RetryingOperationConfig.swift
/Users/admin/builder/spi-builder-workspace/Sources/RetryingOperation/RetryingOperationConfig.swift:45:20: warning: static property 'oslog' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
43 | #if canImport(os)
44 | 	@available(macOS 10.12, tvOS 10.0, iOS 10.0, watchOS 3.0, *)
45 | 	public static var oslog: OSLog? = .default
   |                    |- warning: static property 'oslog' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                    |- note: convert 'oslog' to a 'let' constant to make 'Sendable' shared state immutable
   |                    |- note: add '@MainActor' to make static property 'oslog' part of global actor 'MainActor'
   |                    `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
46 | #endif
47 | 	public static var logger: Logging.Logger? = {
/Users/admin/builder/spi-builder-workspace/Sources/RetryingOperation/RetryingOperationConfig.swift:47:20: 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
45 | 	public static var oslog: OSLog? = .default
46 | #endif
47 | 	public static var logger: Logging.Logger? = {
   |                    |- 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: add '@MainActor' to make static property 'logger' part of global actor 'MainActor'
   |                    `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
48 | #if canImport(os)
49 | 		if #available(macOS 10.12, tvOS 10.0, iOS 10.0, watchOS 3.0, *) {
[10/12] Emitting module RetryingOperation
/Users/admin/builder/spi-builder-workspace/Sources/RetryingOperation/RetryingOperation.swift:79:12: warning: class 'RetryingOperation' must restate inherited '@unchecked Sendable' conformance
 77 |  A solution is to use `RetryableOperationWrapper`.
 78 |  See the doc of this class for more information. */
 79 | open class RetryingOperation : Operation {
    |            `- warning: class 'RetryingOperation' must restate inherited '@unchecked Sendable' conformance
 80 |
 81 | 	public var numberOfRetries: Int? {
/Users/admin/builder/spi-builder-workspace/Sources/RetryingOperation/RetryingOperationConfig.swift:45:20: warning: static property 'oslog' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
43 | #if canImport(os)
44 | 	@available(macOS 10.12, tvOS 10.0, iOS 10.0, watchOS 3.0, *)
45 | 	public static var oslog: OSLog? = .default
   |                    |- warning: static property 'oslog' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                    |- note: convert 'oslog' to a 'let' constant to make 'Sendable' shared state immutable
   |                    |- note: add '@MainActor' to make static property 'oslog' part of global actor 'MainActor'
   |                    `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
46 | #endif
47 | 	public static var logger: Logging.Logger? = {
/Users/admin/builder/spi-builder-workspace/Sources/RetryingOperation/RetryingOperationConfig.swift:47:20: 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
45 | 	public static var oslog: OSLog? = .default
46 | #endif
47 | 	public static var logger: Logging.Logger? = {
   |                    |- 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: add '@MainActor' to make static property 'logger' part of global actor 'MainActor'
   |                    `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
48 | #if canImport(os)
49 | 		if #available(macOS 10.12, tvOS 10.0, iOS 10.0, watchOS 3.0, *) {
[11/12] Compiling RetryingOperation RetryingOperation.swift
/Users/admin/builder/spi-builder-workspace/Sources/RetryingOperation/RetryingOperation.swift:79:12: warning: class 'RetryingOperation' must restate inherited '@unchecked Sendable' conformance
 77 |  A solution is to use `RetryableOperationWrapper`.
 78 |  See the doc of this class for more information. */
 79 | open class RetryingOperation : Operation {
    |            `- warning: class 'RetryingOperation' must restate inherited '@unchecked Sendable' conformance
 80 |
 81 | 	public var numberOfRetries: Int? {
/Users/admin/builder/spi-builder-workspace/Sources/RetryingOperation/RetryingOperation.swift:202:52: warning: capture of 'helpers' with non-sendable type '[any RetryHelper]?' in a '@Sendable' closure
200 | 	 But if you call this method with `nil`, the base operation is retried *now*. */
201 | 	public final func retry(withHelpers helpers: [RetryHelper]?) {
202 | 		retryQueue.async{ self._unsafeRetry(withHelpers: helpers) }
    |                                                    `- warning: capture of 'helpers' with non-sendable type '[any RetryHelper]?' in a '@Sendable' closure
203 | 	}
204 |
/Users/admin/builder/spi-builder-workspace/Sources/RetryingOperation/RetryHelper.swift:20:17: note: protocol 'RetryHelper' does not conform to the 'Sendable' protocol
18 |
19 |
20 | public protocol RetryHelper {
   |                 `- note: protocol 'RetryHelper' does not conform to the 'Sendable' protocol
21 |
22 | 	mutating func setup()
/Users/admin/builder/spi-builder-workspace/Sources/RetryingOperation/RetryingOperation.swift:264:48: warning: capture of 'retryHelpers' with non-sendable type '[any RetryHelper]?' in a '@Sendable' closure
262 | 			self.isBaseOperationRunning = false
263 |
264 | 			guard !self.isCancelled, let retryHelpers = retryHelpers else {
    |                                                `- warning: capture of 'retryHelpers' with non-sendable type '[any RetryHelper]?' in a '@Sendable' closure
265 | 				self.retryingState = .finished
266 | 				return
/Users/admin/builder/spi-builder-workspace/Sources/RetryingOperation/RetryHelper.swift:20:17: note: protocol 'RetryHelper' does not conform to the 'Sendable' protocol
18 |
19 |
20 | public protocol RetryHelper {
   |                 `- note: protocol 'RetryHelper' does not conform to the 'Sendable' protocol
21 |
22 | 	mutating func setup()
[12/12] Compiling RetryingOperation RetryHelper.swift
Build complete! (5.43s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "swift-log",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.2.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-log.git"
    }
  ],
  "manifest_display_name" : "RetryingOperation",
  "name" : "RetryingOperation",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "RetryingOperation",
      "targets" : [
        "RetryingOperation"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "RetryingOperationTests",
      "module_type" : "SwiftTarget",
      "name" : "RetryingOperationTests",
      "path" : "Tests/RetryingOperationTests",
      "sources" : [
        "Helpers/BasicAsynchronousRetryingOperation.swift",
        "Helpers/BasicSynchronousRetryableOperation.swift",
        "Helpers/BasicSynchronousRetryingOperation.swift",
        "Helpers/CustomRetrySynchronousRetryingOperation.swift",
        "RetryingOperationTests.swift"
      ],
      "target_dependencies" : [
        "RetryingOperation"
      ],
      "type" : "test"
    },
    {
      "c99name" : "RetryingOperation",
      "module_type" : "SwiftTarget",
      "name" : "RetryingOperation",
      "path" : "Sources/RetryingOperation",
      "product_dependencies" : [
        "Logging"
      ],
      "product_memberships" : [
        "RetryingOperation"
      ],
      "sources" : [
        "RetryHelper.swift",
        "RetryingOperation.swift",
        "RetryingOperationConfig.swift",
        "WrappedRetryingOperation.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
Done.