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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 CountryKit with Swift 6.0 for macOS (SPM).

Swift 6 data race errors: 1

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.40.0
Interrupt handler set up.
========================================
Checkout
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Clone URL: https://github.com/alemar11/CountryKit.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/alemar11/CountryKit
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 1af5e9a disabled swift tests
Cloned https://github.com/alemar11/CountryKit.git
Revision (git rev-parse @):
1af5e9ab8c838fa5f68d5b88f3e03b8d18b55605
SUCCESS checkout https://github.com/alemar11/CountryKit.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/alemar11/CountryKit.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/3] Write sources
[1/3] Copying Flags.xcassets
[2/3] Write swift-version-6F35C1178C84523A.txt
[4/9] Compiling CountryKit resource_bundle_accessor.swift
[5/9] Compiling CountryKit String+Utils.swift
[6/9] Compiling CountryKit CountryKit.swift
/Users/admin/builder/spi-builder-workspace/Sources/Countries.swift:5:5: warning: let '_countries' is not concurrency-safe because non-'Sendable' type '[Country]' may have shared mutable state; this is an error in the Swift 6 language mode
  3 | // MARK: - This file was automatically generated and should not be edited.
  4 |
  5 | let _countries = [
    |     |- warning: let '_countries' is not concurrency-safe because non-'Sendable' type '[Country]' may have shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: annotate '_countries' 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
  6 |   Country(name: "Afghanistan", iso: "AF", phoneCode: 93, countryCode: 4),
  7 |   Country(name: "Aland Islands", iso: "AX", phoneCode: nil, countryCode: 248),
/Users/admin/builder/spi-builder-workspace/Sources/Country.swift:19:12: note: class 'Country' does not conform to the 'Sendable' protocol
 17 | /// **CountryKit**
 18 | ///
 19 | open class Country: Codable {
    |            `- note: class 'Country' does not conform to the 'Sendable' protocol
 20 |
 21 |   // MARK: - Properties
[7/9] Compiling CountryKit Countries.swift
/Users/admin/builder/spi-builder-workspace/Sources/Countries.swift:5:5: warning: let '_countries' is not concurrency-safe because non-'Sendable' type '[Country]' may have shared mutable state; this is an error in the Swift 6 language mode
  3 | // MARK: - This file was automatically generated and should not be edited.
  4 |
  5 | let _countries = [
    |     |- warning: let '_countries' is not concurrency-safe because non-'Sendable' type '[Country]' may have shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: annotate '_countries' 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
  6 |   Country(name: "Afghanistan", iso: "AF", phoneCode: 93, countryCode: 4),
  7 |   Country(name: "Aland Islands", iso: "AX", phoneCode: nil, countryCode: 248),
/Users/admin/builder/spi-builder-workspace/Sources/Country.swift:19:12: note: class 'Country' does not conform to the 'Sendable' protocol
 17 | /// **CountryKit**
 18 | ///
 19 | open class Country: Codable {
    |            `- note: class 'Country' does not conform to the 'Sendable' protocol
 20 |
 21 |   // MARK: - Properties
[8/9] Emitting module CountryKit
/Users/admin/builder/spi-builder-workspace/Sources/Countries.swift:5:5: warning: let '_countries' is not concurrency-safe because non-'Sendable' type '[Country]' may have shared mutable state; this is an error in the Swift 6 language mode
  3 | // MARK: - This file was automatically generated and should not be edited.
  4 |
  5 | let _countries = [
    |     |- warning: let '_countries' is not concurrency-safe because non-'Sendable' type '[Country]' may have shared mutable state; this is an error in the Swift 6 language mode
    |     |- note: annotate '_countries' 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
  6 |   Country(name: "Afghanistan", iso: "AF", phoneCode: 93, countryCode: 4),
  7 |   Country(name: "Aland Islands", iso: "AX", phoneCode: nil, countryCode: 248),
/Users/admin/builder/spi-builder-workspace/Sources/Country.swift:19:12: note: class 'Country' does not conform to the 'Sendable' protocol
 17 | /// **CountryKit**
 18 | ///
 19 | open class Country: Codable {
    |            `- note: class 'Country' does not conform to the 'Sendable' protocol
 20 |
 21 |   // MARK: - Properties
[9/9] Compiling CountryKit Country.swift
Build complete! (23.99s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "CountryKit",
  "name" : "CountryKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.12"
    },
    {
      "name" : "ios",
      "version" : "10.0"
    },
    {
      "name" : "tvos",
      "version" : "10.0"
    },
    {
      "name" : "watchos",
      "version" : "3.0"
    }
  ],
  "products" : [
    {
      "name" : "CountryKit",
      "targets" : [
        "CountryKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "CountryKit",
      "module_type" : "SwiftTarget",
      "name" : "CountryKit",
      "path" : "Sources",
      "product_memberships" : [
        "CountryKit"
      ],
      "resources" : [
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/Resources/Flags.xcassets",
          "rule" : {
            "process" : {
            }
          }
        }
      ],
      "sources" : [
        "Countries.swift",
        "Country.swift",
        "CountryKit.swift",
        "String+Utils.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.