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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 ContextKit with Swift 6.0 for macOS (SPM).

Swift 6 data race errors: 2

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a 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: 4.40.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/nerdsupremacist/ContextKit.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/nerdsupremacist/ContextKit
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at d68c64d Making mutable context use dynamic member lookup
Cloned https://github.com/nerdsupremacist/ContextKit.git
Revision (git rev-parse @):
d68c64dd4ed4c616bb5fd58f9d19d939a1735f20
SUCCESS checkout https://github.com/nerdsupremacist/ContextKit.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/nerdsupremacist/ContextKit.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-6F35C1178C84523A.txt
[3/12] Compiling ContextKit Array+ContextProtocol.swift
[4/12] Compiling ContextKit ContextElement.swift
[5/12] Compiling ContextKit ContextFactory.swift
/Users/admin/builder/spi-builder-workspace/Sources/ContextKit/ContextFactory.swift:5:16: warning: static property 'factory' is not concurrency-safe because non-'Sendable' type 'ContextKeyPaths' may have shared mutable state; this is an error in the Swift 6 language mode
 2 | import Foundation
 3 |
 4 | public class ContextKeyPaths {
   |              `- note: class 'ContextKeyPaths' does not conform to the 'Sendable' protocol
 5 |     static let factory = ContextKeyPaths()
   |                |- warning: static property 'factory' is not concurrency-safe because non-'Sendable' type 'ContextKeyPaths' may have shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: annotate 'factory' 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
 6 |
 7 |     private var keys = [KeyPath<ContextKeyPaths, Context.AnyKey> : Context.AnyKey]()
[6/12] Compiling ContextKit MutableContext.swift
/Users/admin/builder/spi-builder-workspace/Sources/ContextKit/Context.swift:42:23: warning: static property 'empty' is not concurrency-safe because non-'Sendable' type 'Context' may have shared mutable state; this is an error in the Swift 6 language mode
 3 |
 4 | @dynamicMemberLookup
 5 | public struct Context {
   |               `- note: consider making struct 'Context' conform to the 'Sendable' protocol
 6 |     public class AnyKey: NSObject {
 7 |         fileprivate override init() {
   :
40 | extension Context {
41 |
42 |     public static let empty = Context(dictionary: [:])
   |                       |- warning: static property 'empty' is not concurrency-safe because non-'Sendable' type 'Context' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'empty' 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
43 |
44 | }
[7/12] Compiling ContextKit ContextKeyAssignment.swift
[8/12] Compiling ContextKit Context.swift
/Users/admin/builder/spi-builder-workspace/Sources/ContextKit/Context.swift:42:23: warning: static property 'empty' is not concurrency-safe because non-'Sendable' type 'Context' may have shared mutable state; this is an error in the Swift 6 language mode
 3 |
 4 | @dynamicMemberLookup
 5 | public struct Context {
   |               `- note: consider making struct 'Context' conform to the 'Sendable' protocol
 6 |     public class AnyKey: NSObject {
 7 |         fileprivate override init() {
   :
40 | extension Context {
41 |
42 |     public static let empty = Context(dictionary: [:])
   |                       |- warning: static property 'empty' is not concurrency-safe because non-'Sendable' type 'Context' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'empty' 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
43 |
44 | }
/Users/admin/builder/spi-builder-workspace/Sources/ContextKit/ContextFactory.swift:5:16: warning: static property 'factory' is not concurrency-safe because non-'Sendable' type 'ContextKeyPaths' may have shared mutable state; this is an error in the Swift 6 language mode
 2 | import Foundation
 3 |
 4 | public class ContextKeyPaths {
   |              `- note: class 'ContextKeyPaths' does not conform to the 'Sendable' protocol
 5 |     static let factory = ContextKeyPaths()
   |                |- warning: static property 'factory' is not concurrency-safe because non-'Sendable' type 'ContextKeyPaths' may have shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: annotate 'factory' 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
 6 |
 7 |     private var keys = [KeyPath<ContextKeyPaths, Context.AnyKey> : Context.AnyKey]()
[9/12] Emitting module ContextKit
/Users/admin/builder/spi-builder-workspace/Sources/ContextKit/ContextBuilder.swift:4:2: warning: '@_functionBuilder' has been renamed to '@resultBuilder'
 2 | import Foundation
 3 |
 4 | @_functionBuilder
   |  `- warning: '@_functionBuilder' has been renamed to '@resultBuilder'
 5 | public struct ContextBuilder {
 6 |
/Users/admin/builder/spi-builder-workspace/Sources/ContextKit/Context.swift:42:23: warning: static property 'empty' is not concurrency-safe because non-'Sendable' type 'Context' may have shared mutable state; this is an error in the Swift 6 language mode
 3 |
 4 | @dynamicMemberLookup
 5 | public struct Context {
   |               `- note: consider making struct 'Context' conform to the 'Sendable' protocol
 6 |     public class AnyKey: NSObject {
 7 |         fileprivate override init() {
   :
40 | extension Context {
41 |
42 |     public static let empty = Context(dictionary: [:])
   |                       |- warning: static property 'empty' is not concurrency-safe because non-'Sendable' type 'Context' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'empty' 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
43 |
44 | }
/Users/admin/builder/spi-builder-workspace/Sources/ContextKit/ContextFactory.swift:5:16: warning: static property 'factory' is not concurrency-safe because non-'Sendable' type 'ContextKeyPaths' may have shared mutable state; this is an error in the Swift 6 language mode
 2 | import Foundation
 3 |
 4 | public class ContextKeyPaths {
   |              `- note: class 'ContextKeyPaths' does not conform to the 'Sendable' protocol
 5 |     static let factory = ContextKeyPaths()
   |                |- warning: static property 'factory' is not concurrency-safe because non-'Sendable' type 'ContextKeyPaths' may have shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: annotate 'factory' 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
 6 |
 7 |     private var keys = [KeyPath<ContextKeyPaths, Context.AnyKey> : Context.AnyKey]()
[10/12] Compiling ContextKit AnyContextProtocol.swift
[11/12] Compiling ContextKit ContextBuilder.swift
/Users/admin/builder/spi-builder-workspace/Sources/ContextKit/ContextBuilder.swift:4:2: warning: '@_functionBuilder' has been renamed to '@resultBuilder'
 2 | import Foundation
 3 |
 4 | @_functionBuilder
   |  `- warning: '@_functionBuilder' has been renamed to '@resultBuilder'
 5 | public struct ContextBuilder {
 6 |
/Users/admin/builder/spi-builder-workspace/Sources/ContextKit/Context.swift:42:23: warning: static property 'empty' is not concurrency-safe because non-'Sendable' type 'Context' may have shared mutable state; this is an error in the Swift 6 language mode
 3 |
 4 | @dynamicMemberLookup
 5 | public struct Context {
   |               `- note: consider making struct 'Context' conform to the 'Sendable' protocol
 6 |     public class AnyKey: NSObject {
 7 |         fileprivate override init() {
   :
40 | extension Context {
41 |
42 |     public static let empty = Context(dictionary: [:])
   |                       |- warning: static property 'empty' is not concurrency-safe because non-'Sendable' type 'Context' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'empty' 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
43 |
44 | }
[12/12] Compiling ContextKit ContextProtocol.swift
Build complete! (22.94s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "ContextKit",
  "name" : "ContextKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "ContextKit",
      "targets" : [
        "ContextKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ContextKit",
      "module_type" : "SwiftTarget",
      "name" : "ContextKit",
      "path" : "Sources/ContextKit",
      "product_memberships" : [
        "ContextKit"
      ],
      "sources" : [
        "AnyContextProtocol.swift",
        "Array+ContextProtocol.swift",
        "Context.swift",
        "ContextBuilder.swift",
        "ContextElement.swift",
        "ContextFactory.swift",
        "ContextKeyAssignment.swift",
        "ContextProtocol.swift",
        "MutableContext.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.