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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 DeviceKit, reference 5.6.0 (513b9d), with Swift 6.0 for Linux on 27 Mar 2025 20:31:41 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.0-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.60.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/devicekit/DeviceKit.git
Reference: 5.6.0
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/devicekit/DeviceKit
 * tag               5.6.0      -> FETCH_HEAD
HEAD is now at 513b9d7 Update CHANGELOG and README.
Cloned https://github.com/devicekit/DeviceKit.git
Revision (git rev-parse @):
513b9d7e7a1bd46504a1009bbab943b75ce2f195
SUCCESS checkout https://github.com/devicekit/DeviceKit.git at 5.6.0
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.0
Building package at path:  $PWD
https://github.com/devicekit/DeviceKit.git
https://github.com/devicekit/DeviceKit.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "DeviceKit",
  "name" : "DeviceKit",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "4.0"
    }
  ],
  "products" : [
    {
      "name" : "DeviceKit",
      "targets" : [
        "DeviceKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "DeviceKitTests",
      "module_type" : "SwiftTarget",
      "name" : "DeviceKitTests",
      "path" : "Tests",
      "sources" : [
        "Tests.swift"
      ],
      "target_dependencies" : [
        "DeviceKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "DeviceKit",
      "module_type" : "SwiftTarget",
      "name" : "DeviceKit",
      "path" : "Source",
      "product_memberships" : [
        "DeviceKit"
      ],
      "resources" : [
        {
          "path" : "/host/spi-builder-workspace/Source/PrivacyInfo.xcprivacy",
          "rule" : {
            "process" : {
            }
          }
        }
      ],
      "sources" : [
        "Device.generated.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.0-latest swift build --triple x86_64-unknown-linux-gnu -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 2>&1
basic-6.0-latest: Pulling from finestructure/spi-images
Digest: sha256:081dcf4fb829aea9d08447f4790431afbdfbcc335bfeed728ca69c6f181ae2aa
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.0-latest
warning: 'spi-builder-workspace': found 2 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
    /host/spi-builder-workspace/Source/Info.plist
    /host/spi-builder-workspace/Source/Device.swift.gyb
Building for debugging...
[0/3] Copying PrivacyInfo.xcprivacy
[1/3] Write sources
[2/3] Write swift-version-24593BA9C3E375BF.txt
[4/6] Emitting module DeviceKit
/host/spi-builder-workspace/Source/Device.generated.swift:553:21: warning: static property 'identifier' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 551 |
 552 |   /// Gets the identifier from the system, such as "iPhone7,1".
 553 |   public static var identifier: String = {
     |                     |- warning: static property 'identifier' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
     |                     |- note: convert 'identifier' to a 'let' constant to make 'Sendable' shared state immutable
     |                     |- note: annotate 'identifier' 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
 554 |     var systemInfo = utsname()
 555 |     uname(&systemInfo)
[5/6] Compiling DeviceKit resource_bundle_accessor.swift
[6/6] Compiling DeviceKit Device.generated.swift
/host/spi-builder-workspace/Source/Device.generated.swift:553:21: warning: static property 'identifier' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 551 |
 552 |   /// Gets the identifier from the system, such as "iPhone7,1".
 553 |   public static var identifier: String = {
     |                     |- warning: static property 'identifier' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
     |                     |- note: convert 'identifier' to a 'let' constant to make 'Sendable' shared state immutable
     |                     |- note: annotate 'identifier' 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
 554 |     var systemInfo = utsname()
 555 |     uname(&systemInfo)
/host/spi-builder-workspace/Source/Device.generated.swift:2338:12: error: 'ProcessInfo' initializer is inaccessible due to 'internal' protection level
2336 |   public var thermalState: ThermalState? {
2337 |     guard isCurrent else { return nil }
2338 |     switch ProcessInfo().thermalState {
     |            `- error: 'ProcessInfo' initializer is inaccessible due to 'internal' protection level
2339 |       case .nominal:
2340 |         return .nominal
FoundationEssentials.ProcessInfo (internal):4:14: note: 'init()' declared here
2 |     public static let processInfo: ProcessInfo
3 |     deinit
4 |     internal init()
  |              `- note: 'init()' declared here
5 | }
/host/spi-builder-workspace/Source/Device.generated.swift:2338:26: error: value of type 'ProcessInfo' has no member 'thermalState'
2336 |   public var thermalState: ThermalState? {
2337 |     guard isCurrent else { return nil }
2338 |     switch ProcessInfo().thermalState {
     |                          `- error: value of type 'ProcessInfo' has no member 'thermalState'
2339 |       case .nominal:
2340 |         return .nominal
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.0-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.0-latest: Pulling from finestructure/spi-images
Digest: sha256:081dcf4fb829aea9d08447f4790431afbdfbcc335bfeed728ca69c6f181ae2aa
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.0-latest
warning: 'spi-builder-workspace': found 1 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
    /host/spi-builder-workspace/Tests/Info.plist
warning: 'spi-builder-workspace': found 2 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
    /host/spi-builder-workspace/Source/Info.plist
    /host/spi-builder-workspace/Source/Device.swift.gyb
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
[2/4] Compiling DeviceKit resource_bundle_accessor.swift
[3/4] Emitting module DeviceKit
[4/4] Compiling DeviceKit Device.generated.swift
/host/spi-builder-workspace/Source/Device.generated.swift:2338:12: error: 'ProcessInfo' initializer is inaccessible due to 'internal' protection level
2336 |   public var thermalState: ThermalState? {
2337 |     guard isCurrent else { return nil }
2338 |     switch ProcessInfo().thermalState {
     |            `- error: 'ProcessInfo' initializer is inaccessible due to 'internal' protection level
2339 |       case .nominal:
2340 |         return .nominal
FoundationEssentials.ProcessInfo (internal):4:14: note: 'init()' declared here
2 |     public static let processInfo: ProcessInfo
3 |     deinit
4 |     internal init()
  |              `- note: 'init()' declared here
5 | }
/host/spi-builder-workspace/Source/Device.generated.swift:2338:26: error: value of type 'ProcessInfo' has no member 'thermalState'
2336 |   public var thermalState: ThermalState? {
2337 |     guard isCurrent else { return nil }
2338 |     switch ProcessInfo().thermalState {
     |                          `- error: value of type 'ProcessInfo' has no member 'thermalState'
2339 |       case .nominal:
2340 |         return .nominal
BUILD FAILURE 6.0 linux