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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 Linux.

Swift 6 data race errors: 2

Build Command

bash -c docker run --rm -v "checkouts-4609320-1":/host -w "$workDir" registry.gitlab.com/finestructure/spi-images:basic-6.0-latest swift build --triple x86_64-unknown-linux-gnu -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete 2>&1

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 /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
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:         linux
Swift version:             6.0
Building package at path:  $workDir
https://github.com/dankinsoid/VDCodable.git
Running build ...
bash -c docker run --rm -v "checkouts-4609320-1":/host -w "$workDir" registry.gitlab.com/finestructure/spi-images:basic-6.0-latest swift build --triple x86_64-unknown-linux-gnu -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete 2>&1
Fetching https://github.com/dankinsoid/SimpleCoders.git
[1/96] Fetching simplecoders
Fetched https://github.com/dankinsoid/SimpleCoders.git from cache (0.20s)
Computing version for https://github.com/dankinsoid/SimpleCoders.git
Computed https://github.com/dankinsoid/SimpleCoders.git at 1.6.0 (0.51s)
Creating working copy for https://github.com/dankinsoid/SimpleCoders.git
Working copy of https://github.com/dankinsoid/SimpleCoders.git resolved at 1.6.0
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version-24593BA9C3E375BF.txt
[4/19] Emitting module SimpleCoders
[5/21] Compiling SimpleCoders CheckAllKeysDecoder.swift
[6/21] Compiling SimpleCoders Ref.swift
[7/21] Compiling SimpleCoders CodableTypes.swift
[8/21] Compiling SimpleCoders TypeRevision.swift
[9/21] Compiling SimpleCoders OrderedDictionary.swift
[10/21] Compiling SimpleCoders StringConvertibleHintProvider.swift
[11/21] Compiling SimpleCoders PlainCodingKey.swift
[12/21] Compiling SimpleCoders StringKey.swift
[13/21] Compiling SimpleCoders EncodingBoxer.swift
[14/21] Compiling SimpleCoders IntKey.swift
[15/21] Compiling SimpleCoders TypeRevisionDecoder.swift
[16/21] Compiling SimpleCoders TypeRevisionEncoder.swift
[17/21] Compiling SimpleCoders CodingStrategy.swift
[18/21] Compiling SimpleCoders DecodingUnboxer.swift
[19/21] Compiling SimpleCoders CodableProtocols.swift
[20/21] Compiling SimpleCoders DateCodingStrategies.swift
[21/21] Compiling SimpleCoders KeyCodingStrategies.swift
[23/39] Compiling VDCodable NSManagedCodable.swift
[24/39] Compiling VDCodable URLQueryDecoder.swift
[25/41] Compiling VDCodable URLQueryEncoder.swift
[26/41] Compiling VDCodable Int++.swift
[27/41] Emitting module VDCodable
/host/spi-builder-workspace/Sources/VDCodable/JSON/VDJSONDecoder.swift:317:17: warning: let '_dateFormatter' is not concurrency-safe because non-'Sendable' type 'DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
315 | }
316 |
317 | fileprivate let _dateFormatter = DateFormatter()
    |                 `- warning: let '_dateFormatter' is not concurrency-safe because non-'Sendable' type 'DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
318 | @available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
319 | internal let _iso8601Formatter: ISO8601DateFormatter = {
Foundation.DateFormatter:1:12: note: class 'DateFormatter' does not conform to the 'Sendable' protocol
 1 | open class DateFormatter : Formatter {
   |            `- note: class 'DateFormatter' does not conform to the 'Sendable' protocol
 2 |     override public init()
 3 |     required public init?(coder: NSCoder)
/host/spi-builder-workspace/Sources/VDCodable/JSON/VDJSONDecoder.swift:1:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
  1 | import Foundation
    | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
  2 | import SimpleCoders
  3 |
    :
315 | }
316 |
317 | fileprivate let _dateFormatter = DateFormatter()
    |                 |- 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
318 | @available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
319 | internal let _iso8601Formatter: ISO8601DateFormatter = {
/host/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:1:12: note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 1 | open class ISO8601DateFormatter : Formatter, NSSecureCoding {
   |            `- note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 2 |     open var timeZone: TimeZone! { get set }
 3 |     open var formatOptions: ISO8601DateFormatter.Options { get set }
[28/41] Compiling VDCodable StringUtils.swift
[29/41] Compiling VDCodable UnwrapOperator.swift
[30/41] Compiling VDCodable VDJSONEncoder.swift
[31/41] Compiling VDCodable NSCodable.swift
[32/41] Compiling VDCodable DoubleFormatter.swift
[33/41] Compiling VDCodable EncodingOptions.swift
[34/41] Compiling VDCodable JSON.swift
[35/41] Compiling VDCodable JSONDecodingError.swift
[36/41] Compiling VDCodable JSONScanner.swift
[37/41] Compiling VDCodable ProtobufJSONEncoder.swift
/host/spi-builder-workspace/Sources/VDCodable/JSON/VDJSONDecoder.swift:317:17: warning: let '_dateFormatter' is not concurrency-safe because non-'Sendable' type 'DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
315 | }
316 |
317 | fileprivate let _dateFormatter = DateFormatter()
    |                 `- warning: let '_dateFormatter' is not concurrency-safe because non-'Sendable' type 'DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
318 | @available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
319 | internal let _iso8601Formatter: ISO8601DateFormatter = {
Foundation.DateFormatter:1:12: note: class 'DateFormatter' does not conform to the 'Sendable' protocol
 1 | open class DateFormatter : Formatter {
   |            `- note: class 'DateFormatter' does not conform to the 'Sendable' protocol
 2 |     override public init()
 3 |     required public init?(coder: NSCoder)
/host/spi-builder-workspace/Sources/VDCodable/JSON/VDJSONDecoder.swift:1:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
  1 | import Foundation
    | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
  2 | import SimpleCoders
  3 |
    :
315 | }
316 |
317 | fileprivate let _dateFormatter = DateFormatter()
    |                 |- 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
318 | @available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
319 | internal let _iso8601Formatter: ISO8601DateFormatter = {
/host/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:1:12: note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 1 | open class ISO8601DateFormatter : Formatter, NSSecureCoding {
   |            `- note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 2 |     open var timeZone: TimeZone! { get set }
 3 |     open var formatOptions: ISO8601DateFormatter.Options { get set }
[38/41] Compiling VDCodable VDJSONDecoder.swift
/host/spi-builder-workspace/Sources/VDCodable/JSON/VDJSONDecoder.swift:317:17: warning: let '_dateFormatter' is not concurrency-safe because non-'Sendable' type 'DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
315 | }
316 |
317 | fileprivate let _dateFormatter = DateFormatter()
    |                 `- warning: let '_dateFormatter' is not concurrency-safe because non-'Sendable' type 'DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
318 | @available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
319 | internal let _iso8601Formatter: ISO8601DateFormatter = {
Foundation.DateFormatter:1:12: note: class 'DateFormatter' does not conform to the 'Sendable' protocol
 1 | open class DateFormatter : Formatter {
   |            `- note: class 'DateFormatter' does not conform to the 'Sendable' protocol
 2 |     override public init()
 3 |     required public init?(coder: NSCoder)
/host/spi-builder-workspace/Sources/VDCodable/JSON/VDJSONDecoder.swift:1:1: warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
  1 | import Foundation
    | `- warning: add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'Foundation'
  2 | import SimpleCoders
  3 |
    :
315 | }
316 |
317 | fileprivate let _dateFormatter = DateFormatter()
    |                 |- 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
318 | @available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
319 | internal let _iso8601Formatter: ISO8601DateFormatter = {
/host/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:1:12: note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 1 | open class ISO8601DateFormatter : Formatter, NSSecureCoding {
   |            `- note: class 'ISO8601DateFormatter' does not conform to the 'Sendable' protocol
 2 |     open var timeZone: TimeZone! { get set }
 3 |     open var formatOptions: ISO8601DateFormatter.Options { get set }
[39/41] Compiling VDCodable DictionaryDecoder.swift
[40/41] Compiling VDCodable DictionaryEncoder.swift
[41/41] Compiling VDCodable DataDecodingStrategy.swift
Build complete! (22.60s)
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" : "/host/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.