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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 Thingy, reference 3.0.2 (1ed5bf), with Swift 6.1 for Linux on 25 Apr 2025 20:53:01 UTC.

Swift 6 data race errors: 1

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-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

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/bojan/Thingy.git
Reference: 3.0.2
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/bojan/Thingy
 * tag               3.0.2      -> FETCH_HEAD
HEAD is now at 1ed5bfc Update the documentation.
Cloned https://github.com/bojan/Thingy.git
Revision (git rev-parse @):
1ed5bfc174be905e4aed9c15269c17e3e6facec1
SUCCESS checkout https://github.com/bojan/Thingy.git at 3.0.2
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/bojan/Thingy.git
https://github.com/bojan/Thingy.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Thingy",
  "name" : "Thingy",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "8.0"
    },
    {
      "name" : "tvos",
      "version" : "9.0"
    },
    {
      "name" : "watchos",
      "version" : "2.0"
    }
  ],
  "products" : [
    {
      "name" : "Thingy",
      "targets" : [
        "Thingy"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ThingyTests",
      "module_type" : "SwiftTarget",
      "name" : "ThingyTests",
      "path" : "Tests",
      "sources" : [
        "ComparisonTests.swift",
        "DeviceTests.swift",
        "RawDeviceTests.swift",
        "XCTest+Throwable.swift"
      ],
      "target_dependencies" : [
        "Thingy"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Thingy",
      "module_type" : "SwiftTarget",
      "name" : "Thingy",
      "path" : "Sources",
      "product_memberships" : [
        "Thingy"
      ],
      "sources" : [
        "Device.swift",
        "Extensions/Device+Comparison.swift",
        "Extensions/Device+Display.swift",
        "Extensions/Device+Family.swift",
        "Extensions/Device+MarketingName.swift",
        "Extensions/Device+ModelNumbers.swift",
        "Extensions/Device+ProductLines.swift",
        "Model/Display.swift",
        "Model/Family.swift",
        "Model/Lines.swift",
        "Model/ThingyError.swift",
        "Protocols.swift",
        "RawDevice.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-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-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/15] Compiling Thingy Family.swift
[4/15] Compiling Thingy Lines.swift
[5/16] Compiling Thingy Device+ProductLines.swift
[6/16] Compiling Thingy Display.swift
[7/16] Compiling Thingy ThingyError.swift
[8/16] Compiling Thingy Protocols.swift
[9/16] Compiling Thingy Device+MarketingName.swift
[10/16] Compiling Thingy Device+ModelNumbers.swift
[11/16] Compiling Thingy Device+Display.swift
[12/16] Compiling Thingy Device+Family.swift
[13/16] Emitting module Thingy
/host/spi-builder-workspace/Sources/Device.swift:148:20: warning: static property 'allCases' is not concurrency-safe because non-'Sendable' type '[Device]' may have shared mutable state; this is an error in the Swift 6 language mode
 27 | ///
 28 | /// For iOS devices, only devices supporting iOS 8 are included.
 29 | public enum Device: CaseIterable {
    |             `- note: consider making enum 'Device' conform to the 'Sendable' protocol
 30 |
 31 | 	/// - iPhone4S: iPhone 4S.
    :
146 |
147 | 	/// All real-device values.
148 | 	public static let allCases: [Device] = [
    |                    |- warning: static property 'allCases' is not concurrency-safe because non-'Sendable' type '[Device]' may have shared mutable state; this is an error in the Swift 6 language mode
    |                    |- note: add '@MainActor' to make static property 'allCases' part of global actor 'MainActor'
    |                    `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
149 | 		.iPhone4S,
150 | 		.iPhone5,
[14/16] Compiling Thingy Device.swift
/host/spi-builder-workspace/Sources/Device.swift:148:20: warning: static property 'allCases' is not concurrency-safe because non-'Sendable' type '[Device]' may have shared mutable state; this is an error in the Swift 6 language mode
 27 | ///
 28 | /// For iOS devices, only devices supporting iOS 8 are included.
 29 | public enum Device: CaseIterable {
    |             `- note: consider making enum 'Device' conform to the 'Sendable' protocol
 30 |
 31 | 	/// - iPhone4S: iPhone 4S.
    :
146 |
147 | 	/// All real-device values.
148 | 	public static let allCases: [Device] = [
    |                    |- warning: static property 'allCases' is not concurrency-safe because non-'Sendable' type '[Device]' may have shared mutable state; this is an error in the Swift 6 language mode
    |                    |- note: add '@MainActor' to make static property 'allCases' part of global actor 'MainActor'
    |                    `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
149 | 		.iPhone4S,
150 | 		.iPhone5,
[15/16] Compiling Thingy Device+Comparison.swift
/host/spi-builder-workspace/Sources/Device.swift:148:20: warning: static property 'allCases' is not concurrency-safe because non-'Sendable' type '[Device]' may have shared mutable state; this is an error in the Swift 6 language mode
 27 | ///
 28 | /// For iOS devices, only devices supporting iOS 8 are included.
 29 | public enum Device: CaseIterable {
    |             `- note: consider making enum 'Device' conform to the 'Sendable' protocol
 30 |
 31 | 	/// - iPhone4S: iPhone 4S.
    :
146 |
147 | 	/// All real-device values.
148 | 	public static let allCases: [Device] = [
    |                    |- warning: static property 'allCases' is not concurrency-safe because non-'Sendable' type '[Device]' may have shared mutable state; this is an error in the Swift 6 language mode
    |                    |- note: add '@MainActor' to make static property 'allCases' part of global actor 'MainActor'
    |                    `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
149 | 		.iPhone4S,
150 | 		.iPhone5,
[16/16] Compiling Thingy RawDevice.swift
Build complete! (8.89s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Thingy",
  "name" : "Thingy",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "8.0"
    },
    {
      "name" : "tvos",
      "version" : "9.0"
    },
    {
      "name" : "watchos",
      "version" : "2.0"
    }
  ],
  "products" : [
    {
      "name" : "Thingy",
      "targets" : [
        "Thingy"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ThingyTests",
      "module_type" : "SwiftTarget",
      "name" : "ThingyTests",
      "path" : "Tests",
      "sources" : [
        "ComparisonTests.swift",
        "DeviceTests.swift",
        "RawDeviceTests.swift",
        "XCTest+Throwable.swift"
      ],
      "target_dependencies" : [
        "Thingy"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Thingy",
      "module_type" : "SwiftTarget",
      "name" : "Thingy",
      "path" : "Sources",
      "product_memberships" : [
        "Thingy"
      ],
      "sources" : [
        "Device.swift",
        "Extensions/Device+Comparison.swift",
        "Extensions/Device+Display.swift",
        "Extensions/Device+Family.swift",
        "Extensions/Device+MarketingName.swift",
        "Extensions/Device+ModelNumbers.swift",
        "Extensions/Device+ProductLines.swift",
        "Model/Display.swift",
        "Model/Family.swift",
        "Model/Lines.swift",
        "Model/ThingyError.swift",
        "Protocols.swift",
        "RawDevice.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Done.