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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 Semver with Swift 6.0 for Linux.

Swift 6 data race errors: 3

Build Command

bash -c docker run --rm -v "checkouts-4609320-1":/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/ddddxxx/Semver.git
Reference: master
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/ddddxxx/Semver
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 267933f literal initializer now only accept StaticString
Cloned https://github.com/ddddxxx/Semver.git
Revision (git rev-parse @):
267933f2ab121d409b841049cb6232b1aac25ea4
SUCCESS checkout https://github.com/ddddxxx/Semver.git at master
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.0
Building package at path:  $workDir
https://github.com/ddddxxx/Semver.git
Running build ...
bash -c docker run --rm -v "checkouts-4609320-1":/host -w "$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
[3/4] Emitting module Semver
/host/spi-builder-workspace/Sources/Semver/Semver.swift:160:24: warning: static property 'semverRegex' is not concurrency-safe because non-'Sendable' type 'NSRegularExpression' may have shared mutable state; this is an error in the Swift 6 language mode
158 |
159 |     private static let semverRegexPattern = #"^v?(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([\da-zA-Z\-]+(?:\.[\da-zA-Z\-]+)*))?$"#
160 |     private static let semverRegex = try! NSRegularExpression(pattern: semverRegexPattern)
    |                        `- warning: static property 'semverRegex' is not concurrency-safe because non-'Sendable' type 'NSRegularExpression' may have shared mutable state; this is an error in the Swift 6 language mode
161 |
162 |     public init?(_ description:String) {
Foundation.NSRegularExpression:1:12: note: class 'NSRegularExpression' does not conform to the 'Sendable' protocol
 1 | open class NSRegularExpression : NSObject, NSCopying, NSSecureCoding {
   |            `- note: class 'NSRegularExpression' does not conform to the 'Sendable' protocol
 2 |     override open func copy() -> Any
 3 |     open func copy(with zone: NSZone? = nil) -> Any
/host/spi-builder-workspace/Sources/Semver/Semver.swift:18:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
 16 | //
 17 |
 18 | import Foundation
    | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
 19 |
 20 | /// Represents a version conforming to [Semantic Versioning 2.0.0](http://semver.org).
    :
158 |
159 |     private static let semverRegexPattern = #"^v?(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([\da-zA-Z\-]+(?:\.[\da-zA-Z\-]+)*))?$"#
160 |     private static let semverRegex = try! NSRegularExpression(pattern: semverRegexPattern)
    |                        |- note: annotate 'semverRegex' 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
161 |
162 |     public init?(_ description:String) {
/host/spi-builder-workspace/Sources/Semver/Semver.swift:235:16: warning: static property 'semverIdentifierAllowed' is not concurrency-safe because non-'Sendable' type 'CharacterSet' may have shared mutable state; this is an error in the Swift 6 language mode
233 | private extension CharacterSet {
234 |
235 |     static let semverIdentifierAllowed: CharacterSet = {
    |                |- warning: static property 'semverIdentifierAllowed' is not concurrency-safe because non-'Sendable' type 'CharacterSet' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: annotate 'semverIdentifierAllowed' 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
236 |         var set = CharacterSet(charactersIn: "0"..."9")
237 |         set.insert(charactersIn: "a"..."z")
Foundation.CharacterSet:1:15: note: struct 'CharacterSet' does not conform to the 'Sendable' protocol
 1 | public struct CharacterSet : ReferenceConvertible, Equatable, Hashable, SetAlgebra {
   |               `- note: struct 'CharacterSet' does not conform to the 'Sendable' protocol
 2 |     public typealias ReferenceType = NSCharacterSet
 3 |     public init()
/host/spi-builder-workspace/Sources/Semver/Semver.swift:243:16: warning: static property 'asciiDigits' is not concurrency-safe because non-'Sendable' type 'CharacterSet' may have shared mutable state; this is an error in the Swift 6 language mode
241 |     }()
242 |
243 |     static let asciiDigits = CharacterSet(charactersIn: "0"..."9")
    |                |- warning: static property 'asciiDigits' is not concurrency-safe because non-'Sendable' type 'CharacterSet' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: annotate 'asciiDigits' 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
244 | }
245 |
Foundation.CharacterSet:1:15: note: struct 'CharacterSet' does not conform to the 'Sendable' protocol
 1 | public struct CharacterSet : ReferenceConvertible, Equatable, Hashable, SetAlgebra {
   |               `- note: struct 'CharacterSet' does not conform to the 'Sendable' protocol
 2 |     public typealias ReferenceType = NSCharacterSet
 3 |     public init()
[4/4] Compiling Semver Semver.swift
/host/spi-builder-workspace/Sources/Semver/Semver.swift:160:24: warning: static property 'semverRegex' is not concurrency-safe because non-'Sendable' type 'NSRegularExpression' may have shared mutable state; this is an error in the Swift 6 language mode
158 |
159 |     private static let semverRegexPattern = #"^v?(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([\da-zA-Z\-]+(?:\.[\da-zA-Z\-]+)*))?$"#
160 |     private static let semverRegex = try! NSRegularExpression(pattern: semverRegexPattern)
    |                        `- warning: static property 'semverRegex' is not concurrency-safe because non-'Sendable' type 'NSRegularExpression' may have shared mutable state; this is an error in the Swift 6 language mode
161 |
162 |     public init?(_ description:String) {
Foundation.NSRegularExpression:1:12: note: class 'NSRegularExpression' does not conform to the 'Sendable' protocol
 1 | open class NSRegularExpression : NSObject, NSCopying, NSSecureCoding {
   |            `- note: class 'NSRegularExpression' does not conform to the 'Sendable' protocol
 2 |     override open func copy() -> Any
 3 |     open func copy(with zone: NSZone? = nil) -> Any
/host/spi-builder-workspace/Sources/Semver/Semver.swift:18:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
 16 | //
 17 |
 18 | import Foundation
    | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
 19 |
 20 | /// Represents a version conforming to [Semantic Versioning 2.0.0](http://semver.org).
    :
158 |
159 |     private static let semverRegexPattern = #"^v?(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([\da-zA-Z\-]+(?:\.[\da-zA-Z\-]+)*))?$"#
160 |     private static let semverRegex = try! NSRegularExpression(pattern: semverRegexPattern)
    |                        |- note: annotate 'semverRegex' 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
161 |
162 |     public init?(_ description:String) {
/host/spi-builder-workspace/Sources/Semver/Semver.swift:235:16: warning: static property 'semverIdentifierAllowed' is not concurrency-safe because non-'Sendable' type 'CharacterSet' may have shared mutable state; this is an error in the Swift 6 language mode
233 | private extension CharacterSet {
234 |
235 |     static let semverIdentifierAllowed: CharacterSet = {
    |                |- warning: static property 'semverIdentifierAllowed' is not concurrency-safe because non-'Sendable' type 'CharacterSet' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: annotate 'semverIdentifierAllowed' 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
236 |         var set = CharacterSet(charactersIn: "0"..."9")
237 |         set.insert(charactersIn: "a"..."z")
Foundation.CharacterSet:1:15: note: struct 'CharacterSet' does not conform to the 'Sendable' protocol
 1 | public struct CharacterSet : ReferenceConvertible, Equatable, Hashable, SetAlgebra {
   |               `- note: struct 'CharacterSet' does not conform to the 'Sendable' protocol
 2 |     public typealias ReferenceType = NSCharacterSet
 3 |     public init()
/host/spi-builder-workspace/Sources/Semver/Semver.swift:243:16: warning: static property 'asciiDigits' is not concurrency-safe because non-'Sendable' type 'CharacterSet' may have shared mutable state; this is an error in the Swift 6 language mode
241 |     }()
242 |
243 |     static let asciiDigits = CharacterSet(charactersIn: "0"..."9")
    |                |- warning: static property 'asciiDigits' is not concurrency-safe because non-'Sendable' type 'CharacterSet' may have shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: annotate 'asciiDigits' 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
244 | }
245 |
Foundation.CharacterSet:1:15: note: struct 'CharacterSet' does not conform to the 'Sendable' protocol
 1 | public struct CharacterSet : ReferenceConvertible, Equatable, Hashable, SetAlgebra {
   |               `- note: struct 'CharacterSet' does not conform to the 'Sendable' protocol
 2 |     public typealias ReferenceType = NSCharacterSet
 3 |     public init()
Build complete! (10.86s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Semver",
  "name" : "Semver",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Semver",
      "targets" : [
        "Semver"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SemverTests",
      "module_type" : "SwiftTarget",
      "name" : "SemverTests",
      "path" : "Tests/SemverTests",
      "sources" : [
        "SemverTests.swift"
      ],
      "target_dependencies" : [
        "Semver"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Semver",
      "module_type" : "SwiftTarget",
      "name" : "Semver",
      "path" : "Sources/Semver",
      "product_memberships" : [
        "Semver"
      ],
      "sources" : [
        "Semver.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.