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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 VDCodable 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/dankinsoid/VDCodable.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/dankinsoid/VDCodable
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 0d01666 hm
Cloned https://github.com/dankinsoid/VDCodable.git
Revision (git rev-parse @):
0d016669f23c70ce09bb7bfde321927783ac2af7
SUCCESS checkout https://github.com/dankinsoid/VDCodable.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/dankinsoid/VDCodable.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
[2/3] Write swift-version-6F35C1178C84523A.txt
[4/20] Compiling SimpleCoders TypeRevision.swift
[5/20] Compiling SimpleCoders TypeRevisionDecoder.swift
[6/21] Compiling SimpleCoders StringKey.swift
[7/21] Compiling SimpleCoders CodableTypes.swift
[8/21] Compiling SimpleCoders TypeRevisionEncoder.swift
[9/21] Compiling SimpleCoders StringConvertibleHintProvider.swift
[10/21] Compiling SimpleCoders PlainCodingKey.swift
[11/21] Compiling SimpleCoders IntKey.swift
[12/21] Compiling SimpleCoders OrderedDictionary.swift
[13/21] Compiling SimpleCoders CodableProtocols.swift
[14/21] Compiling SimpleCoders DateCodingStrategies.swift
[15/21] Compiling SimpleCoders CheckAllKeysDecoder.swift
[16/21] Compiling SimpleCoders KeyCodingStrategies.swift
[17/21] Compiling SimpleCoders CodingStrategy.swift
[18/21] Compiling SimpleCoders DecodingUnboxer.swift
[19/21] Compiling SimpleCoders EncodingBoxer.swift
[20/21] Emitting module SimpleCoders
[21/21] Compiling SimpleCoders Ref.swift
[22/39] Compiling VDCodable URLQueryEncoder.swift
[23/39] Compiling VDCodable Int++.swift
[24/39] Compiling VDCodable StringUtils.swift
[25/40] Compiling VDCodable UnwrapOperator.swift
[26/40] Compiling VDCodable VDJSONEncoder.swift
[27/40] Compiling VDCodable NSCodable.swift
[28/40] Compiling VDCodable EncodingOptions.swift
[29/40] Compiling VDCodable JSON.swift
[30/40] Compiling VDCodable JSONDecodingError.swift
[31/40] Compiling VDCodable JSONScanner.swift
[32/40] Compiling VDCodable DataDecodingStrategy.swift
[33/40] Compiling VDCodable DoubleFormatter.swift
[34/40] Compiling VDCodable DictionaryDecoder.swift
[35/40] Compiling VDCodable DictionaryEncoder.swift
[36/40] Emitting module VDCodable
/Users/admin/builder/spi-builder-workspace/Sources/VDCodable/JSON/VDJSONDecoder.swift:319:14: warning: let '_iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
317 | fileprivate let _dateFormatter = DateFormatter()
318 | @available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
319 | internal let _iso8601Formatter: ISO8601DateFormatter = {
    |              |- warning: let '_iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
    |              |- note: annotate '_iso8601Formatter' 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
320 | 	let formatter = ISO8601DateFormatter()
321 | 	formatter.formatOptions = .withInternetDateTime
Foundation.ISO8601DateFormatter:2:12: note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 1 | @available(macOS 10.12, *)
 2 | open class ISO8601DateFormatter : Formatter, NSSecureCoding {
   |            `- note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 3 |     open var timeZone: TimeZone! { get set }
 4 |     open var formatOptions: ISO8601DateFormatter.Options { get set }
[37/40] Compiling VDCodable NSManagedCodable.swift
[38/40] Compiling VDCodable URLQueryDecoder.swift
[39/40] Compiling VDCodable ProtobufJSONEncoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/VDCodable/JSON/VDJSONDecoder.swift:319:14: warning: let '_iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
317 | fileprivate let _dateFormatter = DateFormatter()
318 | @available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
319 | internal let _iso8601Formatter: ISO8601DateFormatter = {
    |              |- warning: let '_iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
    |              |- note: annotate '_iso8601Formatter' 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
320 | 	let formatter = ISO8601DateFormatter()
321 | 	formatter.formatOptions = .withInternetDateTime
Foundation.ISO8601DateFormatter:2:12: note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 1 | @available(macOS 10.12, *)
 2 | open class ISO8601DateFormatter : Formatter, NSSecureCoding {
   |            `- note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 3 |     open var timeZone: TimeZone! { get set }
 4 |     open var formatOptions: ISO8601DateFormatter.Options { get set }
[40/40] Compiling VDCodable VDJSONDecoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/VDCodable/JSON/VDJSONDecoder.swift:319:14: warning: let '_iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
317 | fileprivate let _dateFormatter = DateFormatter()
318 | @available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
319 | internal let _iso8601Formatter: ISO8601DateFormatter = {
    |              |- warning: let '_iso8601Formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
    |              |- note: annotate '_iso8601Formatter' 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
320 | 	let formatter = ISO8601DateFormatter()
321 | 	formatter.formatOptions = .withInternetDateTime
Foundation.ISO8601DateFormatter:2:12: note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 1 | @available(macOS 10.12, *)
 2 | open class ISO8601DateFormatter : Formatter, NSSecureCoding {
   |            `- note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 3 |     open var timeZone: TimeZone! { get set }
 4 |     open var formatOptions: ISO8601DateFormatter.Options { get set }
Build complete! (28.08s)
Fetching https://github.com/dankinsoid/SimpleCoders.git
[1/96] Fetching simplecoders
Fetched https://github.com/dankinsoid/SimpleCoders.git from cache (0.68s)
Computing version for https://github.com/dankinsoid/SimpleCoders.git
Computed https://github.com/dankinsoid/SimpleCoders.git at 1.6.0 (0.69s)
Creating working copy for https://github.com/dankinsoid/SimpleCoders.git
Working copy of https://github.com/dankinsoid/SimpleCoders.git resolved at 1.6.0
Build complete.
{
  "dependencies" : [
    {
      "identity" : "simplecoders",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.6.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/dankinsoid/SimpleCoders.git"
    }
  ],
  "manifest_display_name" : "VDCodable",
  "name" : "VDCodable",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "VDCodable",
      "targets" : [
        "VDCodable"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "VDCodableTests",
      "module_type" : "SwiftTarget",
      "name" : "VDCodableTests",
      "path" : "Tests/VDCodableTests",
      "sources" : [
        "VDCodableTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "VDCodable"
      ],
      "type" : "test"
    },
    {
      "c99name" : "VDCodable",
      "module_type" : "SwiftTarget",
      "name" : "VDCodable",
      "path" : "Sources/VDCodable",
      "product_dependencies" : [
        "SimpleCoders"
      ],
      "product_memberships" : [
        "VDCodable"
      ],
      "sources" : [
        "Dictionary/DictionaryDecoder.swift",
        "Dictionary/DictionaryEncoder.swift",
        "JSON/DataDecodingStrategy.swift",
        "JSON/DoubleFormatter.swift",
        "JSON/EncodingOptions.swift",
        "JSON/JSON.swift",
        "JSON/JSONDecodingError.swift",
        "JSON/JSONScanner.swift",
        "JSON/ProtobufJSONEncoder.swift",
        "JSON/VDJSONDecoder.swift",
        "JSON/VDJSONEncoder.swift",
        "NSCodable/NSCodable.swift",
        "NSCodable/NSManagedCodable.swift",
        "URLQuery/URLQueryDecoder.swift",
        "URLQuery/URLQueryEncoder.swift",
        "Utils/Int++.swift",
        "Utils/StringUtils.swift",
        "Utils/UnwrapOperator.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.