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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 MockSix, reference master (248b1d), with Swift 6.0 for macOS (SPM) on 26 Nov 2024 17:36:36 UTC.

Swift 6 data race errors: 6

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.1.0.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: 4.58.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/lvsti/MockSix.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/lvsti/MockSix
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 248b1df Still fixing the build
Cloned https://github.com/lvsti/MockSix.git
Revision (git rev-parse @):
248b1df60240b6c68813a1b3e650b946cfcf4a84
SUCCESS checkout https://github.com/lvsti/MockSix.git at master
========================================
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": "mocksix",
      "name": "MockSix",
      "url": "https://github.com/lvsti/MockSix.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/MockSix",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/lvsti/MockSix.git
[1/384] Fetching mocksix
Fetched https://github.com/lvsti/MockSix.git from cache (0.77s)
Creating working copy for https://github.com/lvsti/MockSix.git
Working copy of https://github.com/lvsti/MockSix.git resolved at master (248b1df)
warning: '.resolve-product-dependencies': dependency 'mocksix' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/lvsti/MockSix.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.1.0.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...
[0/2] Write sources
[1/2] Write swift-version--7754E27361AE5C74.txt
[3/5] Compiling MockSix MockSixInternal.swift
/Users/admin/builder/spi-builder-workspace/Sources/MockSix/MockSixInternal.swift:297:13: warning: var 'mockQueue' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
295 |
296 |
297 | private var mockQueue: DispatchQueue = DispatchQueue(label: "MockSix")
    |             |- warning: var 'mockQueue' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |             |- note: convert 'mockQueue' to a 'let' constant to make 'Sendable' shared state immutable
    |             |- note: annotate 'mockQueue' 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
298 | private var globalObjectIDIndex: Int32 = 0
299 | private var mockRecords: [String: [MockInvocation]] = [:]
/Users/admin/builder/spi-builder-workspace/Sources/MockSix/MockSixInternal.swift:298:13: warning: var 'globalObjectIDIndex' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
296 |
297 | private var mockQueue: DispatchQueue = DispatchQueue(label: "MockSix")
298 | private var globalObjectIDIndex: Int32 = 0
    |             |- warning: var 'globalObjectIDIndex' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |             |- note: convert 'globalObjectIDIndex' to a 'let' constant to make 'Sendable' shared state immutable
    |             |- note: annotate 'globalObjectIDIndex' 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
299 | private var mockRecords: [String: [MockInvocation]] = [:]
300 | private var mockBlocks: [String: [String: Any]] = [:]
/Users/admin/builder/spi-builder-workspace/Sources/MockSix/MockSixInternal.swift:299:13: warning: var 'mockRecords' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
297 | private var mockQueue: DispatchQueue = DispatchQueue(label: "MockSix")
298 | private var globalObjectIDIndex: Int32 = 0
299 | private var mockRecords: [String: [MockInvocation]] = [:]
    |             |- warning: var 'mockRecords' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |             |- note: convert 'mockRecords' to a 'let' constant to make 'Sendable' shared state immutable
    |             |- note: annotate 'mockRecords' 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
300 | private var mockBlocks: [String: [String: Any]] = [:]
301 |
/Users/admin/builder/spi-builder-workspace/Sources/MockSix/MockSixInternal.swift:300:13: warning: var 'mockBlocks' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
298 | private var globalObjectIDIndex: Int32 = 0
299 | private var mockRecords: [String: [MockInvocation]] = [:]
300 | private var mockBlocks: [String: [String: Any]] = [:]
    |             |- warning: var 'mockBlocks' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |             |- note: convert 'mockBlocks' to a 'let' constant to make 'Sendable' shared state immutable
    |             |- note: annotate 'mockBlocks' 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
301 |
302 |
/Users/admin/builder/spi-builder-workspace/Sources/MockSix/MockSixInternal.swift:310:16: warning: static property 'fatalErrorClosure' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
308 |
309 | struct FatalErrorUtil {
310 |     static var fatalErrorClosure: (String, StaticString, UInt) -> Never = defaultFatalErrorClosure
    |                |- warning: static property 'fatalErrorClosure' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: convert 'fatalErrorClosure' to a 'let' constant to make 'Sendable' shared state immutable
    |                |- note: annotate 'fatalErrorClosure' 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
311 |     private static let defaultFatalErrorClosure = { Swift.fatalError($0, file: $1, line: $2) }
312 |     static func replaceFatalError(closure: @escaping (String, StaticString, UInt) -> Never) { fatalErrorClosure = closure }
<unknown>:0: note: a function type must be marked '@Sendable' to conform to 'Sendable'
/Users/admin/builder/spi-builder-workspace/Sources/MockSix/MockSixInternal.swift:311:24: warning: static property 'defaultFatalErrorClosure' is not concurrency-safe because non-'Sendable' type '(String, StaticString, UInt) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
309 | struct FatalErrorUtil {
310 |     static var fatalErrorClosure: (String, StaticString, UInt) -> Never = defaultFatalErrorClosure
311 |     private static let defaultFatalErrorClosure = { Swift.fatalError($0, file: $1, line: $2) }
    |                        |- warning: static property 'defaultFatalErrorClosure' is not concurrency-safe because non-'Sendable' type '(String, StaticString, UInt) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: annotate 'defaultFatalErrorClosure' 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
312 |     static func replaceFatalError(closure: @escaping (String, StaticString, UInt) -> Never) { fatalErrorClosure = closure }
313 |     static func restoreFatalError() { fatalErrorClosure = defaultFatalErrorClosure }
[4/5] Compiling MockSix MockSix.swift
[5/5] Emitting module MockSix
/Users/admin/builder/spi-builder-workspace/Sources/MockSix/MockSixInternal.swift:297:13: warning: var 'mockQueue' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
295 |
296 |
297 | private var mockQueue: DispatchQueue = DispatchQueue(label: "MockSix")
    |             |- warning: var 'mockQueue' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |             |- note: convert 'mockQueue' to a 'let' constant to make 'Sendable' shared state immutable
    |             |- note: annotate 'mockQueue' 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
298 | private var globalObjectIDIndex: Int32 = 0
299 | private var mockRecords: [String: [MockInvocation]] = [:]
/Users/admin/builder/spi-builder-workspace/Sources/MockSix/MockSixInternal.swift:298:13: warning: var 'globalObjectIDIndex' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
296 |
297 | private var mockQueue: DispatchQueue = DispatchQueue(label: "MockSix")
298 | private var globalObjectIDIndex: Int32 = 0
    |             |- warning: var 'globalObjectIDIndex' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |             |- note: convert 'globalObjectIDIndex' to a 'let' constant to make 'Sendable' shared state immutable
    |             |- note: annotate 'globalObjectIDIndex' 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
299 | private var mockRecords: [String: [MockInvocation]] = [:]
300 | private var mockBlocks: [String: [String: Any]] = [:]
/Users/admin/builder/spi-builder-workspace/Sources/MockSix/MockSixInternal.swift:299:13: warning: var 'mockRecords' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
297 | private var mockQueue: DispatchQueue = DispatchQueue(label: "MockSix")
298 | private var globalObjectIDIndex: Int32 = 0
299 | private var mockRecords: [String: [MockInvocation]] = [:]
    |             |- warning: var 'mockRecords' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |             |- note: convert 'mockRecords' to a 'let' constant to make 'Sendable' shared state immutable
    |             |- note: annotate 'mockRecords' 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
300 | private var mockBlocks: [String: [String: Any]] = [:]
301 |
/Users/admin/builder/spi-builder-workspace/Sources/MockSix/MockSixInternal.swift:300:13: warning: var 'mockBlocks' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
298 | private var globalObjectIDIndex: Int32 = 0
299 | private var mockRecords: [String: [MockInvocation]] = [:]
300 | private var mockBlocks: [String: [String: Any]] = [:]
    |             |- warning: var 'mockBlocks' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |             |- note: convert 'mockBlocks' to a 'let' constant to make 'Sendable' shared state immutable
    |             |- note: annotate 'mockBlocks' 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
301 |
302 |
/Users/admin/builder/spi-builder-workspace/Sources/MockSix/MockSixInternal.swift:310:16: warning: static property 'fatalErrorClosure' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
308 |
309 | struct FatalErrorUtil {
310 |     static var fatalErrorClosure: (String, StaticString, UInt) -> Never = defaultFatalErrorClosure
    |                |- warning: static property 'fatalErrorClosure' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: convert 'fatalErrorClosure' to a 'let' constant to make 'Sendable' shared state immutable
    |                |- note: annotate 'fatalErrorClosure' 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
311 |     private static let defaultFatalErrorClosure = { Swift.fatalError($0, file: $1, line: $2) }
312 |     static func replaceFatalError(closure: @escaping (String, StaticString, UInt) -> Never) { fatalErrorClosure = closure }
<unknown>:0: note: a function type must be marked '@Sendable' to conform to 'Sendable'
/Users/admin/builder/spi-builder-workspace/Sources/MockSix/MockSixInternal.swift:311:24: warning: static property 'defaultFatalErrorClosure' is not concurrency-safe because non-'Sendable' type '(String, StaticString, UInt) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
309 | struct FatalErrorUtil {
310 |     static var fatalErrorClosure: (String, StaticString, UInt) -> Never = defaultFatalErrorClosure
311 |     private static let defaultFatalErrorClosure = { Swift.fatalError($0, file: $1, line: $2) }
    |                        |- warning: static property 'defaultFatalErrorClosure' is not concurrency-safe because non-'Sendable' type '(String, StaticString, UInt) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: annotate 'defaultFatalErrorClosure' 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
312 |     static func replaceFatalError(closure: @escaping (String, StaticString, UInt) -> Never) { fatalErrorClosure = closure }
313 |     static func restoreFatalError() { fatalErrorClosure = defaultFatalErrorClosure }
Build complete! (3.37s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "MockSix",
  "name" : "MockSix",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "MockSix",
      "targets" : [
        "MockSix"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "4.2"
  ],
  "targets" : [
    {
      "c99name" : "MockSix",
      "module_type" : "SwiftTarget",
      "name" : "MockSix",
      "path" : "Sources",
      "product_memberships" : [
        "MockSix"
      ],
      "sources" : [
        "MockSix/MockSix.swift",
        "MockSix/MockSixInternal.swift"
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      "type" : "library"
    }
  ],
  "tools_version" : "4.2"
}
Done.