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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 UIDeviceComplete, reference 3.1.0 (d00886), with Swift 6.1 for macOS (SPM) on 29 Apr 2025 13:15:28 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 4.61.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Nirma/UIDeviceComplete.git
Reference: 3.1.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Nirma/UIDeviceComplete
 * tag               3.1.0      -> FETCH_HEAD
HEAD is now at d008867 Update iPad Tests
Cloned https://github.com/Nirma/UIDeviceComplete.git
Revision (git rev-parse @):
d0088673d9f9db7dac9f3177e771fb93f6d83ecd
SUCCESS checkout https://github.com/Nirma/UIDeviceComplete.git at 3.1.0
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/Nirma/UIDeviceComplete.git
https://github.com/Nirma/UIDeviceComplete.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "UIDeviceComplete",
  "name" : "UIDeviceComplete",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "11.0"
    },
    {
      "name" : "watchos",
      "version" : "4.0"
    }
  ],
  "products" : [
    {
      "name" : "UIDeviceComplete",
      "targets" : [
        "UIDeviceComplete"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "UIDeviceComplete",
      "module_type" : "SwiftTarget",
      "name" : "UIDeviceComplete",
      "path" : "Sources",
      "product_memberships" : [
        "UIDeviceComplete"
      ],
      "sources" : [
        "DeviceFamily.swift",
        "DeviceModel.swift",
        "Identifier.swift",
        "Screen.swift",
        "System.swift",
        "UIDeviceComplete.swift",
        "UIDeviceExtensions.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
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
[3/10] Compiling UIDeviceComplete Identifier.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/10] Compiling UIDeviceComplete Screen.swift
[5/10] Compiling UIDeviceComplete DeviceModel.swift
[6/10] Compiling UIDeviceComplete UIDeviceComplete.swift
[7/10] Compiling UIDeviceComplete DeviceFamily.swift
[8/10] Compiling UIDeviceComplete System.swift
[9/10] Emitting module UIDeviceComplete
/Users/admin/builder/spi-builder-workspace/Sources/UIDeviceExtensions.swift:32:49: error: cannot find type 'DCDevice' in scope
30 | #endif
31 |
32 | public extension UIDeviceComplete where Base == DCDevice {
   |                                                 `- error: cannot find type 'DCDevice' in scope
33 |
34 |     private var identifier: Identifier? {
[10/10] Compiling UIDeviceComplete UIDeviceExtensions.swift
/Users/admin/builder/spi-builder-workspace/Sources/UIDeviceExtensions.swift:32:49: error: cannot find type 'DCDevice' in scope
30 | #endif
31 |
32 | public extension UIDeviceComplete where Base == DCDevice {
   |                                                 `- error: cannot find type 'DCDevice' in scope
33 |
34 |     private var identifier: Identifier? {
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
[2/9] Compiling UIDeviceComplete UIDeviceComplete.swift
[3/9] Compiling UIDeviceComplete DeviceModel.swift
[4/9] Compiling UIDeviceComplete UIDeviceExtensions.swift
/Users/admin/builder/spi-builder-workspace/Sources/UIDeviceExtensions.swift:32:49: error: cannot find type 'DCDevice' in scope
30 | #endif
31 |
32 | public extension UIDeviceComplete where Base == DCDevice {
   |                                                 `- error: cannot find type 'DCDevice' in scope
33 |
34 |     private var identifier: Identifier? {
[5/9] Compiling UIDeviceComplete Screen.swift
[6/9] Compiling UIDeviceComplete System.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[7/9] Compiling UIDeviceComplete DeviceFamily.swift
[8/9] Compiling UIDeviceComplete Identifier.swift
[9/9] Emitting module UIDeviceComplete
/Users/admin/builder/spi-builder-workspace/Sources/UIDeviceExtensions.swift:32:49: error: cannot find type 'DCDevice' in scope
30 | #endif
31 |
32 | public extension UIDeviceComplete where Base == DCDevice {
   |                                                 `- error: cannot find type 'DCDevice' in scope
33 |
34 |     private var identifier: Identifier? {
BUILD FAILURE 6.1 macosSpm