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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 CachedImage, reference master (e41ded), with Swift 6.0 for macOS (SPM) on 4 Nov 2024 06:24:05 UTC.

Swift 6 data race errors: 1

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

Build Log

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/leoz/CachedImage.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/leoz/CachedImage
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at e41ded5 Update demo project to use config file
Cloned https://github.com/leoz/CachedImage.git
Revision (git rev-parse @):
e41ded5c5f9a0ff442b228e83bf082b6ff5a8ba1
SUCCESS checkout https://github.com/leoz/CachedImage.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": "cachedimage",
      "name": "CachedImage",
      "url": "https://github.com/leoz/CachedImage.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/CachedImage",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/leoz/CachedImage.git
[1/424] Fetching cachedimage
Fetched https://github.com/leoz/CachedImage.git from cache (1.34s)
Creating working copy for https://github.com/leoz/CachedImage.git
Working copy of https://github.com/leoz/CachedImage.git resolved at master (e41ded5)
warning: '.resolve-product-dependencies': dependency 'cachedimage' 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/leoz/CachedImage.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
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--7754E27361AE5C74.txt
[3/8] Compiling CachedImage PlatformImage.swift
[4/8] Compiling CachedImage ImageLoader.swift
[5/8] Compiling CachedImage EnvironmentValues+ImageCache.swift
/Users/admin/builder/spi-builder-workspace/Sources/CachedImage/EnvironmentValues+ImageCache.swift:12:16: warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type 'any ImageCache' may have shared mutable state; this is an error in the Swift 6 language mode
10 |
11 | struct ImageCacheKey: EnvironmentKey {
12 |     static let defaultValue: ImageCache = DefaultImageCache()
   |                |- warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type 'any ImageCache' may have shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: annotate 'defaultValue' 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
13 | }
14 |
/Users/admin/builder/spi-builder-workspace/Sources/CachedImage/ImageCache.swift:11:17: note: protocol 'ImageCache' does not conform to the 'Sendable' protocol
 9 | import SwiftUI
10 |
11 | public protocol ImageCache {
   |                 `- note: protocol 'ImageCache' does not conform to the 'Sendable' protocol
12 |     subscript(_ url: URL) -> PlatformImage? { get set }
13 | }
[6/8] Emitting module CachedImage
/Users/admin/builder/spi-builder-workspace/Sources/CachedImage/EnvironmentValues+ImageCache.swift:12:16: warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type 'any ImageCache' may have shared mutable state; this is an error in the Swift 6 language mode
10 |
11 | struct ImageCacheKey: EnvironmentKey {
12 |     static let defaultValue: ImageCache = DefaultImageCache()
   |                |- warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type 'any ImageCache' may have shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: annotate 'defaultValue' 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
13 | }
14 |
/Users/admin/builder/spi-builder-workspace/Sources/CachedImage/ImageCache.swift:11:17: note: protocol 'ImageCache' does not conform to the 'Sendable' protocol
 9 | import SwiftUI
10 |
11 | public protocol ImageCache {
   |                 `- note: protocol 'ImageCache' does not conform to the 'Sendable' protocol
12 |     subscript(_ url: URL) -> PlatformImage? { get set }
13 | }
[7/8] Compiling CachedImage ImageCache.swift
[8/8] Compiling CachedImage CachedImage.swift
Build complete! (14.75s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "CachedImage",
  "name" : "CachedImage",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "16.0"
    },
    {
      "name" : "macos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "CachedImage",
      "targets" : [
        "CachedImage"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CachedImageTests",
      "module_type" : "SwiftTarget",
      "name" : "CachedImageTests",
      "path" : "Tests/CachedImageTests",
      "sources" : [
        "CachedImageTests.swift"
      ],
      "target_dependencies" : [
        "CachedImage"
      ],
      "type" : "test"
    },
    {
      "c99name" : "CachedImage",
      "module_type" : "SwiftTarget",
      "name" : "CachedImage",
      "path" : "Sources/CachedImage",
      "product_memberships" : [
        "CachedImage"
      ],
      "sources" : [
        "CachedImage.swift",
        "EnvironmentValues+ImageCache.swift",
        "ImageCache.swift",
        "ImageLoader.swift",
        "PlatformImage.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.8"
}
Done.