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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 TimeZones, reference main (03bb9f), with Swift 6.0 for macOS (SPM) on 31 Oct 2024 16:07:05 UTC.

Swift 6 data race errors: 2

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/binarybirds/timezones.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/binarybirds/timezones
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 03bb9fb license
Cloned https://github.com/binarybirds/timezones.git
Revision (git rev-parse @):
03bb9fbc72df1be9d6611cb8215db09711ebd378
SUCCESS checkout https://github.com/binarybirds/timezones.git at main
========================================
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": "timezones",
      "name": "TimeZones",
      "url": "https://github.com/binarybirds/timezones.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/timezones",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/binarybirds/timezones.git
[1/23] Fetching timezones
Fetched https://github.com/binarybirds/timezones.git from cache (0.73s)
Creating working copy for https://github.com/binarybirds/timezones.git
Working copy of https://github.com/binarybirds/timezones.git resolved at main (03bb9fb)
warning: '.resolve-product-dependencies': dependency 'timezones' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/binarybirds/timezones.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--7754E27361AE5C74.txt
[3/6] Compiling TimeZones TimeZone+Location.swift
/Users/admin/builder/spi-builder-workspace/Sources/TimeZone+Location.swift:24:5: warning: 'public' modifier is redundant for static property declared in a public extension
 22 | public extension TimeZone {
 23 |
 24 |     public static var local: TimeZone {
    |     `- warning: 'public' modifier is redundant for static property declared in a public extension
 25 |         return TimeZone(identifier: NSTimeZone.local.identifier)!
 26 |     }
/Users/admin/builder/spi-builder-workspace/Sources/TimeZone+Location.swift:28:5: warning: 'public' modifier is redundant for static property declared in a public extension
 26 |     }
 27 |
 28 |     public static var system: TimeZone {
    |     `- warning: 'public' modifier is redundant for static property declared in a public extension
 29 |         return TimeZone(identifier: NSTimeZone.system.identifier)!
 30 |     }
/Users/admin/builder/spi-builder-workspace/Sources/TimeZone+Location.swift:33:23: warning: static property 'knownTimeZoneCoordinates' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 31 |
 32 |     //created from TimeZone.knownTimeZoneIdentifiers
 33 |     public static var knownTimeZoneCoordinates: [String: Coordinate] = [
    |                       |- warning: static property 'knownTimeZoneCoordinates' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'knownTimeZoneCoordinates' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'knownTimeZoneCoordinates' 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
 34 |         "GMT": Coordinate(latitude: -15.706_518_6, longitude: -47.905_952_3),
 35 |
/Users/admin/builder/spi-builder-workspace/Sources/TimeZone+Location.swift:33:5: warning: 'public' modifier is redundant for static property declared in a public extension
 31 |
 32 |     //created from TimeZone.knownTimeZoneIdentifiers
 33 |     public static var knownTimeZoneCoordinates: [String: Coordinate] = [
    |     `- warning: 'public' modifier is redundant for static property declared in a public extension
 34 |         "GMT": Coordinate(latitude: -15.706_518_6, longitude: -47.905_952_3),
 35 |
/Users/admin/builder/spi-builder-workspace/Sources/TimeZone+Location.swift:492:23: warning: static property 'GMT' is not concurrency-safe because non-'Sendable' type '(identifier: String, coordinate: Coordinate)' may have shared mutable state; this is an error in the Swift 6 language mode
490 |
491 |
492 |     public static let GMT: (identifier: String, coordinate: Coordinate) =
    |                       |- warning: static property 'GMT' is not concurrency-safe because non-'Sendable' type '(identifier: String, coordinate: Coordinate)' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'GMT' 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
493 |             (identifier: "GMT", coordinate: TimeZone.knownTimeZoneCoordinates["GMT"]!)
494 |
/Users/admin/builder/spi-builder-workspace/Sources/Coordinate.swift:13:15: note: consider making struct 'Coordinate' conform to the 'Sendable' protocol
11 | #endif
12 |
13 | public struct Coordinate: Codable {
   |               `- note: consider making struct 'Coordinate' conform to the 'Sendable' protocol
14 |     public let latitude: Double
15 |     public let longitude: Double
/Users/admin/builder/spi-builder-workspace/Sources/TimeZone+Location.swift:492:5: warning: 'public' modifier is redundant for static property declared in a public extension
490 |
491 |
492 |     public static let GMT: (identifier: String, coordinate: Coordinate) =
    |     `- warning: 'public' modifier is redundant for static property declared in a public extension
493 |             (identifier: "GMT", coordinate: TimeZone.knownTimeZoneCoordinates["GMT"]!)
494 |
[4/6] Emitting module TimeZones
/Users/admin/builder/spi-builder-workspace/Sources/Coordinate.swift:26:5: warning: 'public' modifier is redundant for property declared in a public extension
24 | #if canImport(CoreLocation)
25 | public extension Coordinate {
26 |     public var coreLocationCoordinate2D: CLLocationCoordinate2D {
   |     `- warning: 'public' modifier is redundant for property declared in a public extension
27 |         return CLLocationCoordinate2D(latitude: self.latitude, longitude: self.longitude)
28 |     }
/Users/admin/builder/spi-builder-workspace/Sources/TimeZone+Abbrevation.swift:13:5: warning: 'public' modifier is redundant for enum declared in a public extension
11 |
12 |     //created from: TimeZone.abbreviationDictionary.keys
13 |     public enum Abbrevation: String {
   |     `- warning: 'public' modifier is redundant for enum declared in a public extension
14 |         case adt
15 |         case akdt
/Users/admin/builder/spi-builder-workspace/Sources/TimeZone+Abbrevation.swift:67:5: warning: 'public' modifier is redundant for initializer declared in a public extension
65 |     }
66 |
67 |     public init(abbrevation: TimeZone.Abbrevation) {
   |     `- warning: 'public' modifier is redundant for initializer declared in a public extension
68 |         self.init(abbreviation: abbrevation.rawValue.uppercased())!
69 |     }
/Users/admin/builder/spi-builder-workspace/Sources/TimeZone+Location.swift:24:5: warning: 'public' modifier is redundant for static property declared in a public extension
 22 | public extension TimeZone {
 23 |
 24 |     public static var local: TimeZone {
    |     `- warning: 'public' modifier is redundant for static property declared in a public extension
 25 |         return TimeZone(identifier: NSTimeZone.local.identifier)!
 26 |     }
/Users/admin/builder/spi-builder-workspace/Sources/TimeZone+Location.swift:28:5: warning: 'public' modifier is redundant for static property declared in a public extension
 26 |     }
 27 |
 28 |     public static var system: TimeZone {
    |     `- warning: 'public' modifier is redundant for static property declared in a public extension
 29 |         return TimeZone(identifier: NSTimeZone.system.identifier)!
 30 |     }
/Users/admin/builder/spi-builder-workspace/Sources/TimeZone+Location.swift:33:23: warning: static property 'knownTimeZoneCoordinates' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 31 |
 32 |     //created from TimeZone.knownTimeZoneIdentifiers
 33 |     public static var knownTimeZoneCoordinates: [String: Coordinate] = [
    |                       |- warning: static property 'knownTimeZoneCoordinates' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: convert 'knownTimeZoneCoordinates' to a 'let' constant to make 'Sendable' shared state immutable
    |                       |- note: annotate 'knownTimeZoneCoordinates' 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
 34 |         "GMT": Coordinate(latitude: -15.706_518_6, longitude: -47.905_952_3),
 35 |
/Users/admin/builder/spi-builder-workspace/Sources/TimeZone+Location.swift:33:5: warning: 'public' modifier is redundant for static property declared in a public extension
 31 |
 32 |     //created from TimeZone.knownTimeZoneIdentifiers
 33 |     public static var knownTimeZoneCoordinates: [String: Coordinate] = [
    |     `- warning: 'public' modifier is redundant for static property declared in a public extension
 34 |         "GMT": Coordinate(latitude: -15.706_518_6, longitude: -47.905_952_3),
 35 |
/Users/admin/builder/spi-builder-workspace/Sources/TimeZone+Location.swift:492:23: warning: static property 'GMT' is not concurrency-safe because non-'Sendable' type '(identifier: String, coordinate: Coordinate)' may have shared mutable state; this is an error in the Swift 6 language mode
490 |
491 |
492 |     public static let GMT: (identifier: String, coordinate: Coordinate) =
    |                       |- warning: static property 'GMT' is not concurrency-safe because non-'Sendable' type '(identifier: String, coordinate: Coordinate)' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'GMT' 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
493 |             (identifier: "GMT", coordinate: TimeZone.knownTimeZoneCoordinates["GMT"]!)
494 |
/Users/admin/builder/spi-builder-workspace/Sources/Coordinate.swift:13:15: note: consider making struct 'Coordinate' conform to the 'Sendable' protocol
11 | #endif
12 |
13 | public struct Coordinate: Codable {
   |               `- note: consider making struct 'Coordinate' conform to the 'Sendable' protocol
14 |     public let latitude: Double
15 |     public let longitude: Double
/Users/admin/builder/spi-builder-workspace/Sources/TimeZone+Location.swift:492:5: warning: 'public' modifier is redundant for static property declared in a public extension
490 |
491 |
492 |     public static let GMT: (identifier: String, coordinate: Coordinate) =
    |     `- warning: 'public' modifier is redundant for static property declared in a public extension
493 |             (identifier: "GMT", coordinate: TimeZone.knownTimeZoneCoordinates["GMT"]!)
494 |
[5/6] Compiling TimeZones TimeZone+Abbrevation.swift
/Users/admin/builder/spi-builder-workspace/Sources/TimeZone+Abbrevation.swift:13:5: warning: 'public' modifier is redundant for enum declared in a public extension
11 |
12 |     //created from: TimeZone.abbreviationDictionary.keys
13 |     public enum Abbrevation: String {
   |     `- warning: 'public' modifier is redundant for enum declared in a public extension
14 |         case adt
15 |         case akdt
/Users/admin/builder/spi-builder-workspace/Sources/TimeZone+Abbrevation.swift:67:5: warning: 'public' modifier is redundant for initializer declared in a public extension
65 |     }
66 |
67 |     public init(abbrevation: TimeZone.Abbrevation) {
   |     `- warning: 'public' modifier is redundant for initializer declared in a public extension
68 |         self.init(abbreviation: abbrevation.rawValue.uppercased())!
69 |     }
[6/6] Compiling TimeZones Coordinate.swift
/Users/admin/builder/spi-builder-workspace/Sources/Coordinate.swift:26:5: warning: 'public' modifier is redundant for property declared in a public extension
24 | #if canImport(CoreLocation)
25 | public extension Coordinate {
26 |     public var coreLocationCoordinate2D: CLLocationCoordinate2D {
   |     `- warning: 'public' modifier is redundant for property declared in a public extension
27 |         return CLLocationCoordinate2D(latitude: self.latitude, longitude: self.longitude)
28 |     }
Build complete! (7.47s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "TimeZones",
  "name" : "TimeZones",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "TimeZones",
      "targets" : [
        "TimeZones"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "TimeZonesTests",
      "module_type" : "SwiftTarget",
      "name" : "TimeZonesTests",
      "path" : "Tests/TimeZonesTests",
      "sources" : [
        "TimeZonesTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "TimeZones"
      ],
      "type" : "test"
    },
    {
      "c99name" : "TimeZones",
      "module_type" : "SwiftTarget",
      "name" : "TimeZones",
      "path" : "Sources",
      "product_memberships" : [
        "TimeZones"
      ],
      "sources" : [
        "Coordinate.swift",
        "TimeZone+Abbrevation.swift",
        "TimeZone+Location.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.2"
}
Done.