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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 sendOtp, reference 1.0.0 (1df440), with Swift 6.1 for macOS (SPM) on 25 Apr 2025 15:48:17 UTC.

Swift 6 data race errors: 2

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -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

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/d-o-2021/sendOTP.git
Reference: 1.0.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/d-o-2021/sendOTP
 * tag               1.0.0      -> FETCH_HEAD
HEAD is now at 1df4403 Initial commit
Cloned https://github.com/d-o-2021/sendOTP.git
Revision (git rev-parse @):
1df44032a9aca970c336350869d7f21d069ef8db
SUCCESS checkout https://github.com/d-o-2021/sendOTP.git at 1.0.0
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "dependencies": [
    {
      "identity": "sendotp",
      "name": "sendOtp",
      "url": "https://github.com/d-o-2021/sendOTP.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/sendOTP",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/d-o-2021/sendOTP.git
[1/49] Fetching sendotp
Fetched https://github.com/d-o-2021/sendOTP.git from cache (0.64s)
Creating working copy for https://github.com/d-o-2021/sendOTP.git
Working copy of https://github.com/d-o-2021/sendOTP.git resolved at 1.0.0 (1df4403)
warning: '.resolve-product-dependencies': dependency 'sendotp' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/d-o-2021/sendOTP.git
https://github.com/d-o-2021/sendOTP.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "sendOtp",
  "name" : "sendOtp",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "sendOtp",
      "targets" : [
        "sendOtp"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "sendOtpTests",
      "module_type" : "SwiftTarget",
      "name" : "sendOtpTests",
      "path" : "Tests/sendOtpTests",
      "sources" : [
        "sendOtpTests.swift"
      ],
      "target_dependencies" : [
        "sendOtp"
      ],
      "type" : "test"
    },
    {
      "c99name" : "sendOtp",
      "module_type" : "SwiftTarget",
      "name" : "sendOtp",
      "path" : "Sources/sendOtp",
      "product_memberships" : [
        "sendOtp"
      ],
      "sources" : [
        "ApiService.swift",
        "sendOtp.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -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
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/5] Emitting module sendOtp
/Users/admin/builder/spi-builder-workspace/Sources/sendOtp/sendOtp.swift:6:23: warning: static property 'widgetId' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  4 |
  5 | public class OTPManager {
  6 |     public static var widgetId:String = ""
    |                       |- warning: static property 'widgetId' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'widgetId' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: add '@MainActor' to make static property 'widgetId' part of global actor 'MainActor'
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
  7 |     public static var tokenAuth:String = ""
  8 |
/Users/admin/builder/spi-builder-workspace/Sources/sendOtp/sendOtp.swift:7:23: warning: static property 'tokenAuth' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  5 | public class OTPManager {
  6 |     public static var widgetId:String = ""
  7 |     public static var tokenAuth:String = ""
    |                       |- warning: static property 'tokenAuth' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'tokenAuth' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: add '@MainActor' to make static property 'tokenAuth' part of global actor 'MainActor'
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
  8 |
  9 |     public static func initializeWidget(widgetId: String, tokenAuth: String){
[4/5] Compiling sendOtp ApiService.swift
/Users/admin/builder/spi-builder-workspace/Sources/sendOtp/ApiService.swift:69:17: warning: capture of 'completion' with non-sendable type '(Result<[String : Any], any Error>) -> Void' in a '@Sendable' closure
 67 |         let task = URLSession.shared.dataTask(with: request) { data, response, error in
 68 |             if let error = error {
 69 |                 completion(.failure(error))
    |                 |- warning: capture of 'completion' with non-sendable type '(Result<[String : Any], any Error>) -> Void' in a '@Sendable' closure
    |                 `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
 70 |                 return
 71 |             }
/Users/admin/builder/spi-builder-workspace/Sources/sendOtp/ApiService.swift:106:17: warning: capture of 'completion' with non-sendable type '(Result<[String : Any], any Error>) -> Void' in a '@Sendable' closure
104 |         URLSession.shared.dataTask(with: request){ data, response, error in
105 |             if let error = error {
106 |                 completion(.failure(error))
    |                 |- warning: capture of 'completion' with non-sendable type '(Result<[String : Any], any Error>) -> Void' in a '@Sendable' closure
    |                 `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
107 |                 return
108 |             }
[5/5] Compiling sendOtp sendOtp.swift
/Users/admin/builder/spi-builder-workspace/Sources/sendOtp/sendOtp.swift:6:23: warning: static property 'widgetId' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  4 |
  5 | public class OTPManager {
  6 |     public static var widgetId:String = ""
    |                       |- warning: static property 'widgetId' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'widgetId' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: add '@MainActor' to make static property 'widgetId' part of global actor 'MainActor'
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
  7 |     public static var tokenAuth:String = ""
  8 |
/Users/admin/builder/spi-builder-workspace/Sources/sendOtp/sendOtp.swift:7:23: warning: static property 'tokenAuth' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
  5 | public class OTPManager {
  6 |     public static var widgetId:String = ""
  7 |     public static var tokenAuth:String = ""
    |                       |- warning: static property 'tokenAuth' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'tokenAuth' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: add '@MainActor' to make static property 'tokenAuth' part of global actor 'MainActor'
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
  8 |
  9 |     public static func initializeWidget(widgetId: String, tokenAuth: String){
Build complete! (4.44s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "sendOtp",
  "name" : "sendOtp",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "sendOtp",
      "targets" : [
        "sendOtp"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "sendOtpTests",
      "module_type" : "SwiftTarget",
      "name" : "sendOtpTests",
      "path" : "Tests/sendOtpTests",
      "sources" : [
        "sendOtpTests.swift"
      ],
      "target_dependencies" : [
        "sendOtp"
      ],
      "type" : "test"
    },
    {
      "c99name" : "sendOtp",
      "module_type" : "SwiftTarget",
      "name" : "sendOtp",
      "path" : "Sources/sendOtp",
      "product_memberships" : [
        "sendOtp"
      ],
      "sources" : [
        "ApiService.swift",
        "sendOtp.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
Done.