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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 swift-generic-color with Swift 6.0 for Linux.

Swift 6 data race errors: 3

Build Command

bash -c docker run --rm -v "checkouts-4606859-1":/host -w "$workDir" 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 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.40.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/capturecontext/swift-generic-color.git
Reference: main
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/capturecontext/swift-generic-color
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at a4ce3f8 Migration to capturecontext/swift-generic-color
Cloned https://github.com/capturecontext/swift-generic-color.git
Revision (git rev-parse @):
a4ce3f82b0f3ae604b1d2236cfefcf600fd59c41
SUCCESS checkout https://github.com/capturecontext/swift-generic-color.git at main
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.0
Building package at path:  $workDir
https://github.com/capturecontext/swift-generic-color.git
Running build ...
bash -c docker run --rm -v "checkouts-4606859-1":/host -w "$workDir" 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 2>&1
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/19] Emitting module GenericColor
/host/spi-builder-workspace/Sources/GenericColor/ColorComponent.swift:12:21: warning: static property 'zero' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 10 |
 11 | public struct ColorComponent: Equatable, Comparable, Codable, AdditiveArithmetic {
 12 |   public static var zero: ColorComponent = .init(value: 0)
    |                     |- warning: static property 'zero' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                     |- note: convert 'zero' to a 'let' constant to make 'Sendable' shared state immutable
    |                     |- note: annotate 'zero' 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 |   private static let _max: Decimal = 1
/host/spi-builder-workspace/Sources/GenericColor/ColorComponent.swift:14:22: warning: static property '_max' is not concurrency-safe because non-'Sendable' type 'Decimal' may have shared mutable state; this is an error in the Swift 6 language mode
 12 |   public static var zero: ColorComponent = .init(value: 0)
 13 |
 14 |   private static let _max: Decimal = 1
    |                      `- warning: static property '_max' is not concurrency-safe because non-'Sendable' type 'Decimal' may have shared mutable state; this is an error in the Swift 6 language mode
 15 |   private static let _min: Decimal = 0
 16 |   private var _value: Decimal
Foundation.Decimal:1:15: note: struct 'Decimal' does not conform to the 'Sendable' protocol
 1 | public struct Decimal {
   |               `- note: struct 'Decimal' does not conform to the 'Sendable' protocol
 2 |     public var _exponent: Int32 { get set }
 3 |     public var _length: UInt32 { get set }
/host/spi-builder-workspace/Sources/GenericColor/ColorComponent.swift:9:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
  7 | //
  8 |
  9 | import Foundation
    | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
 10 |
 11 | public struct ColorComponent: Equatable, Comparable, Codable, AdditiveArithmetic {
 12 |   public static var zero: ColorComponent = .init(value: 0)
 13 |
 14 |   private static let _max: Decimal = 1
    |                      |- note: annotate '_max' 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
 15 |   private static let _min: Decimal = 0
 16 |   private var _value: Decimal
/host/spi-builder-workspace/Sources/GenericColor/ColorComponent.swift:15:22: warning: static property '_min' is not concurrency-safe because non-'Sendable' type 'Decimal' may have shared mutable state; this is an error in the Swift 6 language mode
 13 |
 14 |   private static let _max: Decimal = 1
 15 |   private static let _min: Decimal = 0
    |                      |- warning: static property '_min' is not concurrency-safe because non-'Sendable' type 'Decimal' may have shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: annotate '_min' 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
 16 |   private var _value: Decimal
 17 |
Foundation.Decimal:1:15: note: struct 'Decimal' does not conform to the 'Sendable' protocol
 1 | public struct Decimal {
   |               `- note: struct 'Decimal' does not conform to the 'Sendable' protocol
 2 |     public var _exponent: Int32 { get set }
 3 |     public var _length: UInt32 { get set }
[4/21] Compiling GenericColor String+RGB.swift
[5/21] Compiling GenericColor StaticallyNamedType.swift
[6/21] Compiling GenericColor RGB+Conversions.swift
[7/21] Compiling GenericColor Decimal+Extension.swift
[8/21] Compiling GenericColor ColorComponent.swift
/host/spi-builder-workspace/Sources/GenericColor/ColorComponent.swift:12:21: warning: static property 'zero' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 10 |
 11 | public struct ColorComponent: Equatable, Comparable, Codable, AdditiveArithmetic {
 12 |   public static var zero: ColorComponent = .init(value: 0)
    |                     |- warning: static property 'zero' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                     |- note: convert 'zero' to a 'let' constant to make 'Sendable' shared state immutable
    |                     |- note: annotate 'zero' 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 |   private static let _max: Decimal = 1
/host/spi-builder-workspace/Sources/GenericColor/ColorComponent.swift:14:22: warning: static property '_max' is not concurrency-safe because non-'Sendable' type 'Decimal' may have shared mutable state; this is an error in the Swift 6 language mode
 12 |   public static var zero: ColorComponent = .init(value: 0)
 13 |
 14 |   private static let _max: Decimal = 1
    |                      `- warning: static property '_max' is not concurrency-safe because non-'Sendable' type 'Decimal' may have shared mutable state; this is an error in the Swift 6 language mode
 15 |   private static let _min: Decimal = 0
 16 |   private var _value: Decimal
Foundation.Decimal:1:15: note: struct 'Decimal' does not conform to the 'Sendable' protocol
 1 | public struct Decimal {
   |               `- note: struct 'Decimal' does not conform to the 'Sendable' protocol
 2 |     public var _exponent: Int32 { get set }
 3 |     public var _length: UInt32 { get set }
/host/spi-builder-workspace/Sources/GenericColor/ColorComponent.swift:9:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
  7 | //
  8 |
  9 | import Foundation
    | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
 10 |
 11 | public struct ColorComponent: Equatable, Comparable, Codable, AdditiveArithmetic {
 12 |   public static var zero: ColorComponent = .init(value: 0)
 13 |
 14 |   private static let _max: Decimal = 1
    |                      |- note: annotate '_max' 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
 15 |   private static let _min: Decimal = 0
 16 |   private var _value: Decimal
/host/spi-builder-workspace/Sources/GenericColor/ColorComponent.swift:15:22: warning: static property '_min' is not concurrency-safe because non-'Sendable' type 'Decimal' may have shared mutable state; this is an error in the Swift 6 language mode
 13 |
 14 |   private static let _max: Decimal = 1
 15 |   private static let _min: Decimal = 0
    |                      |- warning: static property '_min' is not concurrency-safe because non-'Sendable' type 'Decimal' may have shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: annotate '_min' 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
 16 |   private var _value: Decimal
 17 |
Foundation.Decimal:1:15: note: struct 'Decimal' does not conform to the 'Sendable' protocol
 1 | public struct Decimal {
   |               `- note: struct 'Decimal' does not conform to the 'Sendable' protocol
 2 |     public var _exponent: Int32 { get set }
 3 |     public var _length: UInt32 { get set }
[9/21] Compiling GenericColor ColorSpace.swift
/host/spi-builder-workspace/Sources/GenericColor/ColorComponent.swift:12:21: warning: static property 'zero' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 10 |
 11 | public struct ColorComponent: Equatable, Comparable, Codable, AdditiveArithmetic {
 12 |   public static var zero: ColorComponent = .init(value: 0)
    |                     |- warning: static property 'zero' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                     |- note: convert 'zero' to a 'let' constant to make 'Sendable' shared state immutable
    |                     |- note: annotate 'zero' 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 |   private static let _max: Decimal = 1
/host/spi-builder-workspace/Sources/GenericColor/ColorComponent.swift:14:22: warning: static property '_max' is not concurrency-safe because non-'Sendable' type 'Decimal' may have shared mutable state; this is an error in the Swift 6 language mode
 12 |   public static var zero: ColorComponent = .init(value: 0)
 13 |
 14 |   private static let _max: Decimal = 1
    |                      `- warning: static property '_max' is not concurrency-safe because non-'Sendable' type 'Decimal' may have shared mutable state; this is an error in the Swift 6 language mode
 15 |   private static let _min: Decimal = 0
 16 |   private var _value: Decimal
Foundation.Decimal:1:15: note: struct 'Decimal' does not conform to the 'Sendable' protocol
 1 | public struct Decimal {
   |               `- note: struct 'Decimal' does not conform to the 'Sendable' protocol
 2 |     public var _exponent: Int32 { get set }
 3 |     public var _length: UInt32 { get set }
/host/spi-builder-workspace/Sources/GenericColor/ColorComponent.swift:9:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
  7 | //
  8 |
  9 | import Foundation
    | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
 10 |
 11 | public struct ColorComponent: Equatable, Comparable, Codable, AdditiveArithmetic {
 12 |   public static var zero: ColorComponent = .init(value: 0)
 13 |
 14 |   private static let _max: Decimal = 1
    |                      |- note: annotate '_max' 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
 15 |   private static let _min: Decimal = 0
 16 |   private var _value: Decimal
/host/spi-builder-workspace/Sources/GenericColor/ColorComponent.swift:15:22: warning: static property '_min' is not concurrency-safe because non-'Sendable' type 'Decimal' may have shared mutable state; this is an error in the Swift 6 language mode
 13 |
 14 |   private static let _max: Decimal = 1
 15 |   private static let _min: Decimal = 0
    |                      |- warning: static property '_min' is not concurrency-safe because non-'Sendable' type 'Decimal' may have shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: annotate '_min' 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
 16 |   private var _value: Decimal
 17 |
Foundation.Decimal:1:15: note: struct 'Decimal' does not conform to the 'Sendable' protocol
 1 | public struct Decimal {
   |               `- note: struct 'Decimal' does not conform to the 'Sendable' protocol
 2 |     public var _exponent: Int32 { get set }
 3 |     public var _length: UInt32 { get set }
[10/21] Compiling GenericColor CMYK+Conversions.swift
/host/spi-builder-workspace/Sources/GenericColor/ColorComponent.swift:12:21: warning: static property 'zero' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 10 |
 11 | public struct ColorComponent: Equatable, Comparable, Codable, AdditiveArithmetic {
 12 |   public static var zero: ColorComponent = .init(value: 0)
    |                     |- warning: static property 'zero' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                     |- note: convert 'zero' to a 'let' constant to make 'Sendable' shared state immutable
    |                     |- note: annotate 'zero' 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 |   private static let _max: Decimal = 1
/host/spi-builder-workspace/Sources/GenericColor/ColorComponent.swift:14:22: warning: static property '_max' is not concurrency-safe because non-'Sendable' type 'Decimal' may have shared mutable state; this is an error in the Swift 6 language mode
 12 |   public static var zero: ColorComponent = .init(value: 0)
 13 |
 14 |   private static let _max: Decimal = 1
    |                      `- warning: static property '_max' is not concurrency-safe because non-'Sendable' type 'Decimal' may have shared mutable state; this is an error in the Swift 6 language mode
 15 |   private static let _min: Decimal = 0
 16 |   private var _value: Decimal
Foundation.Decimal:1:15: note: struct 'Decimal' does not conform to the 'Sendable' protocol
 1 | public struct Decimal {
   |               `- note: struct 'Decimal' does not conform to the 'Sendable' protocol
 2 |     public var _exponent: Int32 { get set }
 3 |     public var _length: UInt32 { get set }
/host/spi-builder-workspace/Sources/GenericColor/ColorComponent.swift:9:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
  7 | //
  8 |
  9 | import Foundation
    | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
 10 |
 11 | public struct ColorComponent: Equatable, Comparable, Codable, AdditiveArithmetic {
 12 |   public static var zero: ColorComponent = .init(value: 0)
 13 |
 14 |   private static let _max: Decimal = 1
    |                      |- note: annotate '_max' 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
 15 |   private static let _min: Decimal = 0
 16 |   private var _value: Decimal
/host/spi-builder-workspace/Sources/GenericColor/ColorComponent.swift:15:22: warning: static property '_min' is not concurrency-safe because non-'Sendable' type 'Decimal' may have shared mutable state; this is an error in the Swift 6 language mode
 13 |
 14 |   private static let _max: Decimal = 1
 15 |   private static let _min: Decimal = 0
    |                      |- warning: static property '_min' is not concurrency-safe because non-'Sendable' type 'Decimal' may have shared mutable state; this is an error in the Swift 6 language mode
    |                      |- note: annotate '_min' 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
 16 |   private var _value: Decimal
 17 |
Foundation.Decimal:1:15: note: struct 'Decimal' does not conform to the 'Sendable' protocol
 1 | public struct Decimal {
   |               `- note: struct 'Decimal' does not conform to the 'Sendable' protocol
 2 |     public var _exponent: Int32 { get set }
 3 |     public var _length: UInt32 { get set }
[11/21] Compiling GenericColor HSB.swift
[12/21] Compiling GenericColor OSX.swift
[13/21] Compiling GenericColor RGB.swift
[14/21] Compiling GenericColor RGBAInitializable.swift
[15/21] Compiling GenericColor SwiftUI.swift
[16/21] Compiling GenericColor iOS.swift
[17/21] Compiling GenericColor CMYK.swift
[18/21] Compiling GenericColor Color+Mapping.swift
[19/21] Compiling GenericColor Color.swift
[20/21] Compiling GenericColor ConversionInitProtocols.swift
[21/21] Compiling GenericColor HSB+Conversions.swift
Build complete! (10.97s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "swift-generic-color",
  "name" : "swift-generic-color",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "GenericColor",
      "targets" : [
        "GenericColor"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "GenericColorTests",
      "module_type" : "SwiftTarget",
      "name" : "GenericColorTests",
      "path" : "Tests/GenericColorTests",
      "sources" : [
        "GenericColorTests.swift"
      ],
      "target_dependencies" : [
        "GenericColor"
      ],
      "type" : "test"
    },
    {
      "c99name" : "GenericColor",
      "module_type" : "SwiftTarget",
      "name" : "GenericColor",
      "path" : "Sources/GenericColor",
      "product_memberships" : [
        "GenericColor"
      ],
      "sources" : [
        "CMYK/CMYK.swift",
        "Color+Mapping.swift",
        "Color.swift",
        "ColorComponent.swift",
        "ColorSpace.swift",
        "Conversions/CMYK+Conversions.swift",
        "Conversions/ConversionInitProtocols.swift",
        "Conversions/HSB+Conversions.swift",
        "Conversions/RGB+Conversions.swift",
        "Decimal+Extension.swift",
        "HSB/HSB.swift",
        "PlatformSpecific/OSX.swift",
        "PlatformSpecific/SwiftUI.swift",
        "PlatformSpecific/iOS.swift",
        "RGB/RGB.swift",
        "RGB/RGBAInitializable.swift",
        "RGB/String+RGB.swift",
        "StaticallyNamedType.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.