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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

Failed to build DIAttribute, reference 0.0.1 (3b69bb), with Swift 6.1 for macOS (SPM) on 24 Apr 2025 10:27:25 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/tattn/diattribute.git
Reference: 0.0.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/tattn/diattribute
 * tag               0.0.1      -> FETCH_HEAD
HEAD is now at 3b69bb4 Clean code & add unit tests
Cloned https://github.com/tattn/diattribute.git
Revision (git rev-parse @):
3b69bb49e694c4e054706dc02c59ca2ca42ec5cc
SUCCESS checkout https://github.com/tattn/diattribute.git at 0.0.1
========================================
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": "diattribute",
      "name": "DIAttribute",
      "url": "https://github.com/tattn/diattribute.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/diattribute",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/tattn/diattribute.git
[1/34] Fetching diattribute
Fetched https://github.com/tattn/diattribute.git from cache (0.50s)
Creating working copy for https://github.com/tattn/diattribute.git
Working copy of https://github.com/tattn/diattribute.git resolved at 0.0.1 (3b69bb4)
warning: '.resolve-product-dependencies': dependency 'diattribute' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/tattn/diattribute.git
https://github.com/tattn/diattribute.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "DIAttribute",
  "name" : "DIAttribute",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "DIAttribute",
      "targets" : [
        "DIAttribute"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "DIAttributeTests",
      "module_type" : "SwiftTarget",
      "name" : "DIAttributeTests",
      "path" : "Tests/DIAttributeTests",
      "sources" : [
        "DIAttributeTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "DIAttribute"
      ],
      "type" : "test"
    },
    {
      "c99name" : "DIAttribute",
      "module_type" : "SwiftTarget",
      "name" : "DIAttribute",
      "path" : "Sources/DIAttribute",
      "product_memberships" : [
        "DIAttribute"
      ],
      "sources" : [
        "DIResolver.swift",
        "Inject.swift",
        "RegisterBuilder.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
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...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/6] Compiling DIAttribute RegisterBuilder.swift
/Users/admin/builder/spi-builder-workspace/Sources/DIAttribute/RegisterBuilder.swift:20:2: warning: '@_functionBuilder' has been renamed to '@resultBuilder'
18 | }
19 |
20 | @_functionBuilder public struct RegisterBuilder {
   |  `- warning: '@_functionBuilder' has been renamed to '@resultBuilder'
21 |     public static func buildBlock(
22 |         _ registers: Register...
[4/6] Compiling DIAttribute Inject.swift
/Users/admin/builder/spi-builder-workspace/Sources/DIAttribute/Inject.swift:11:15: error: property wrapper type 'Inject' does not contain a non-static property named 'wrappedValue'
 9 |
10 | @propertyWrapper
11 | public struct Inject<Target, Value> {
   |               `- error: property wrapper type 'Inject' does not contain a non-static property named 'wrappedValue'
12 |     public init(_ type: Target.Type) {}
13 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[5/6] Compiling DIAttribute DIResolver.swift
/Users/admin/builder/spi-builder-workspace/Sources/DIAttribute/DIResolver.swift:13:24: warning: static property 'factories' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
11 |     public typealias Factory<Value> = () -> Value
12 |
13 |     private static var factories: [ObjectIdentifier: [ObjectIdentifier: Factory<Any>]] = [:]
   |                        |- warning: static property 'factories' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                        |- note: convert 'factories' to a 'let' constant to make 'Sendable' shared state immutable
   |                        |- note: add '@MainActor' to make static property 'factories' part of global actor 'MainActor'
   |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
14 |
15 |     public static func register<Target, Value>(
[6/6] Emitting module DIAttribute
/Users/admin/builder/spi-builder-workspace/Sources/DIAttribute/RegisterBuilder.swift:20:2: warning: '@_functionBuilder' has been renamed to '@resultBuilder'
18 | }
19 |
20 | @_functionBuilder public struct RegisterBuilder {
   |  `- warning: '@_functionBuilder' has been renamed to '@resultBuilder'
21 |     public static func buildBlock(
22 |         _ registers: Register...
/Users/admin/builder/spi-builder-workspace/Sources/DIAttribute/DIResolver.swift:13:24: warning: static property 'factories' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
11 |     public typealias Factory<Value> = () -> Value
12 |
13 |     private static var factories: [ObjectIdentifier: [ObjectIdentifier: Factory<Any>]] = [:]
   |                        |- warning: static property 'factories' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                        |- note: convert 'factories' to a 'let' constant to make 'Sendable' shared state immutable
   |                        |- note: add '@MainActor' to make static property 'factories' part of global actor 'MainActor'
   |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
14 |
15 |     public static func register<Target, Value>(
/Users/admin/builder/spi-builder-workspace/Sources/DIAttribute/Inject.swift:11:15: error: property wrapper type 'Inject' does not contain a non-static property named 'wrappedValue'
 9 |
10 | @propertyWrapper
11 | public struct Inject<Target, Value> {
   |               `- error: property wrapper type 'Inject' does not contain a non-static property named 'wrappedValue'
12 |     public init(_ type: Target.Type) {}
13 |
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-2F0A5646E1D333AE.txt
[2/5] Compiling DIAttribute RegisterBuilder.swift
/Users/admin/builder/spi-builder-workspace/Sources/DIAttribute/RegisterBuilder.swift:20:2: warning: '@_functionBuilder' has been renamed to '@resultBuilder'
18 | }
19 |
20 | @_functionBuilder public struct RegisterBuilder {
   |  `- warning: '@_functionBuilder' has been renamed to '@resultBuilder'
21 |     public static func buildBlock(
22 |         _ registers: Register...
[3/5] Compiling DIAttribute Inject.swift
/Users/admin/builder/spi-builder-workspace/Sources/DIAttribute/Inject.swift:11:15: error: property wrapper type 'Inject' does not contain a non-static property named 'wrappedValue'
 9 |
10 | @propertyWrapper
11 | public struct Inject<Target, Value> {
   |               `- error: property wrapper type 'Inject' does not contain a non-static property named 'wrappedValue'
12 |     public init(_ type: Target.Type) {}
13 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/5] Compiling DIAttribute DIResolver.swift
[5/5] Emitting module DIAttribute
/Users/admin/builder/spi-builder-workspace/Sources/DIAttribute/RegisterBuilder.swift:20:2: warning: '@_functionBuilder' has been renamed to '@resultBuilder'
18 | }
19 |
20 | @_functionBuilder public struct RegisterBuilder {
   |  `- warning: '@_functionBuilder' has been renamed to '@resultBuilder'
21 |     public static func buildBlock(
22 |         _ registers: Register...
/Users/admin/builder/spi-builder-workspace/Sources/DIAttribute/Inject.swift:11:15: error: property wrapper type 'Inject' does not contain a non-static property named 'wrappedValue'
 9 |
10 | @propertyWrapper
11 | public struct Inject<Target, Value> {
   |               `- error: property wrapper type 'Inject' does not contain a non-static property named 'wrappedValue'
12 |     public init(_ type: Target.Type) {}
13 |
BUILD FAILURE 6.1 macosSpm