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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 Health 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
========================================
Clone URL: https://github.com/Kitura/Health.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Kitura/Health
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at e175d8a Update package reference to community versions (#18)
Cloned https://github.com/Kitura/Health.git
Revision (git rev-parse @):
e175d8a5c599d1d76ac8c5d5ec8a3a55f557c8b1
SUCCESS checkout https://github.com/Kitura/Health.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/Kitura/Health.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...
[0/4] Write sources
[3/4] Write swift-version-6F35C1178C84523A.txt
[5/9] Compiling Logging MetadataProvider.swift
[6/9] Emitting module Logging
[7/9] Compiling Logging Logging.swift
[8/9] Compiling Logging LogHandler.swift
[9/9] Compiling Logging Locks.swift
[10/11] Emitting module LoggerAPI
[11/11] Compiling LoggerAPI Logger.swift
[12/15] Compiling Health Utils.swift
[13/15] Emitting module Health
/Users/admin/builder/spi-builder-workspace/Sources/Health/Protocols.swift:83:21: warning: static property 'dateFormatter' is not concurrency-safe because non-'Sendable' type 'StatusDateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
 42 |
 43 | /// Struct that encapsulates a `DateFormatter` implementation, specifically used by the Status struct.
 44 | public class StatusDateFormatter {
    |              `- note: class 'StatusDateFormatter' does not conform to the 'Sendable' protocol
 45 |   private let dateFormatter: DateFormatter
 46 |
    :
 81 | public struct Status: Equatable {
 82 |   /// The date formatter used by the `Status` struct.
 83 |   public static let dateFormatter = StatusDateFormatter()
    |                     |- warning: static property 'dateFormatter' is not concurrency-safe because non-'Sendable' type 'StatusDateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                     |- note: annotate 'dateFormatter' 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
 84 |
 85 |   /// The date format used by the timestamp value in the dictionary.
[14/15] Compiling Health Health.swift
/Users/admin/builder/spi-builder-workspace/Sources/Health/Protocols.swift:83:21: warning: static property 'dateFormatter' is not concurrency-safe because non-'Sendable' type 'StatusDateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
 42 |
 43 | /// Struct that encapsulates a `DateFormatter` implementation, specifically used by the Status struct.
 44 | public class StatusDateFormatter {
    |              `- note: class 'StatusDateFormatter' does not conform to the 'Sendable' protocol
 45 |   private let dateFormatter: DateFormatter
 46 |
    :
 81 | public struct Status: Equatable {
 82 |   /// The date formatter used by the `Status` struct.
 83 |   public static let dateFormatter = StatusDateFormatter()
    |                     |- warning: static property 'dateFormatter' is not concurrency-safe because non-'Sendable' type 'StatusDateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                     |- note: annotate 'dateFormatter' 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
 84 |
 85 |   /// The date format used by the timestamp value in the dictionary.
[15/15] Compiling Health Protocols.swift
/Users/admin/builder/spi-builder-workspace/Sources/Health/Protocols.swift:83:21: warning: static property 'dateFormatter' is not concurrency-safe because non-'Sendable' type 'StatusDateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
 42 |
 43 | /// Struct that encapsulates a `DateFormatter` implementation, specifically used by the Status struct.
 44 | public class StatusDateFormatter {
    |              `- note: class 'StatusDateFormatter' does not conform to the 'Sendable' protocol
 45 |   private let dateFormatter: DateFormatter
 46 |
    :
 81 | public struct Status: Equatable {
 82 |   /// The date formatter used by the `Status` struct.
 83 |   public static let dateFormatter = StatusDateFormatter()
    |                     |- warning: static property 'dateFormatter' is not concurrency-safe because non-'Sendable' type 'StatusDateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                     |- note: annotate 'dateFormatter' 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
 84 |
 85 |   /// The date format used by the timestamp value in the dictionary.
Build complete! (23.19s)
Fetching https://github.com/Kitura/LoggerAPI.git
[1/771] Fetching loggerapi
Fetched https://github.com/Kitura/LoggerAPI.git from cache (1.08s)
Computing version for https://github.com/Kitura/LoggerAPI.git
Computed https://github.com/Kitura/LoggerAPI.git at 1.9.200 (0.67s)
Fetching https://github.com/apple/swift-log.git
[1/3361] Fetching swift-log
Fetched https://github.com/apple/swift-log.git from cache (1.15s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.5.4 (0.65s)
Creating working copy for https://github.com/apple/swift-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.5.4
Creating working copy for https://github.com/Kitura/LoggerAPI.git
Working copy of https://github.com/Kitura/LoggerAPI.git resolved at 1.9.200
Build complete.
{
  "dependencies" : [
    {
      "identity" : "loggerapi",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.9.200",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Kitura/LoggerAPI.git"
    }
  ],
  "manifest_display_name" : "Health",
  "name" : "Health",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Health",
      "targets" : [
        "Health"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "HealthTests",
      "module_type" : "SwiftTarget",
      "name" : "HealthTests",
      "path" : "Tests/HealthTests",
      "sources" : [
        "HealthTests.swift"
      ],
      "target_dependencies" : [
        "Health"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Health",
      "module_type" : "SwiftTarget",
      "name" : "Health",
      "path" : "Sources/Health",
      "product_dependencies" : [
        "LoggerAPI"
      ],
      "product_memberships" : [
        "Health"
      ],
      "sources" : [
        "Health.swift",
        "Protocols.swift",
        "Utils.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.