The Swift Package Index logo.Swift Package Index

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 BetterCodable, reference 0.4.0 (611531), with Swift 6.0 for macOS (SPM) on 1 Nov 2024 18:47:13 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/marksands/BetterCodable.git
Reference: 0.4.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/marksands/BetterCodable
 * tag               0.4.0      -> FETCH_HEAD
HEAD is now at 6115317 Adds ISO8601WithFractionalSecondsStrategy
Cloned https://github.com/marksands/BetterCodable.git
Revision (git rev-parse @):
61153170668db7a46a20a87e35e70f80b24d4eb5
SUCCESS checkout https://github.com/marksands/BetterCodable.git at 0.4.0
========================================
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": "bettercodable",
      "name": "BetterCodable",
      "url": "https://github.com/marksands/BetterCodable.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/BetterCodable",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/marksands/BetterCodable.git
[1/592] Fetching bettercodable
Fetched https://github.com/marksands/BetterCodable.git from cache (0.88s)
Creating working copy for https://github.com/marksands/BetterCodable.git
Working copy of https://github.com/marksands/BetterCodable.git resolved at 0.4.0 (6115317)
warning: '.resolve-product-dependencies': dependency 'bettercodable' 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/marksands/BetterCodable.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
[3/19] Compiling BetterCodable LossyOptional.swift
[4/19] Compiling BetterCodable RFC2822Strategy.swift
[5/19] Compiling BetterCodable DefaultEmptyArray.swift
[6/19] Compiling BetterCodable DefaultEmptyDictionary.swift
[7/20] Compiling BetterCodable RFC3339Strategy.swift
[8/20] Emitting module BetterCodable
/Users/admin/builder/spi-builder-workspace/Sources/BetterCodable/ISO8601WithFractionalSecondsStrategy.swift:13:24: warning: static property 'formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
11 | @available(iOS 11.0, tvOS 11.0, watchOS 4.0, macOS 10.13, *)
12 | public struct ISO8601WithFractionalSecondsStrategy: DateValueCodableStrategy {
13 |     private static let formatter: ISO8601DateFormatter = {
   |                        |- warning: static property 'formatter' 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 'formatter' 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
14 |         let formatter = ISO8601DateFormatter()
15 |         formatter.formatOptions = [.withInternetDateTime, .withFractionalSeconds]
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 }
/Users/admin/builder/spi-builder-workspace/Sources/BetterCodable/LossyDictionary.swift:32:40: warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 5 | /// This is useful if the Dictionary is intended to contain non-optional values.
 6 | @propertyWrapper
 7 | public struct LossyDictionary<Key: Hashable, Value> {
   |                                              `- note: 'Value' previously declared here
 8 |     public var wrappedValue: [Key: Value]
 9 |
   :
30 |
31 |     private struct AnyDecodableValue: Decodable {}
32 |     private struct LossyDecodableValue<Value: Decodable>: Decodable {
   |                                        `- warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
33 |         let value: Value
34 |
[9/20] Compiling BetterCodable DateValue.swift
[10/20] Compiling BetterCodable DefaultCodable.swift
[11/20] Compiling BetterCodable TimestampStrategy.swift
[12/20] Compiling BetterCodable ISO8601Strategy.swift
/Users/admin/builder/spi-builder-workspace/Sources/BetterCodable/ISO8601WithFractionalSecondsStrategy.swift:13:24: warning: static property 'formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
11 | @available(iOS 11.0, tvOS 11.0, watchOS 4.0, macOS 10.13, *)
12 | public struct ISO8601WithFractionalSecondsStrategy: DateValueCodableStrategy {
13 |     private static let formatter: ISO8601DateFormatter = {
   |                        |- warning: static property 'formatter' 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 'formatter' 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
14 |         let formatter = ISO8601DateFormatter()
15 |         formatter.formatOptions = [.withInternetDateTime, .withFractionalSeconds]
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 }
[13/20] Compiling BetterCodable ISO8601WithFractionalSecondsStrategy.swift
/Users/admin/builder/spi-builder-workspace/Sources/BetterCodable/ISO8601WithFractionalSecondsStrategy.swift:13:24: warning: static property 'formatter' is not concurrency-safe because non-'Sendable' type 'ISO8601DateFormatter' may have shared mutable state; this is an error in the Swift 6 language mode
11 | @available(iOS 11.0, tvOS 11.0, watchOS 4.0, macOS 10.13, *)
12 | public struct ISO8601WithFractionalSecondsStrategy: DateValueCodableStrategy {
13 |     private static let formatter: ISO8601DateFormatter = {
   |                        |- warning: static property 'formatter' 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 'formatter' 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
14 |         let formatter = ISO8601DateFormatter()
15 |         formatter.formatOptions = [.withInternetDateTime, .withFractionalSeconds]
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 }
[14/20] Compiling BetterCodable LossyArray.swift
/Users/admin/builder/spi-builder-workspace/Sources/BetterCodable/LossyDictionary.swift:32:40: warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 5 | /// This is useful if the Dictionary is intended to contain non-optional values.
 6 | @propertyWrapper
 7 | public struct LossyDictionary<Key: Hashable, Value> {
   |                                              `- note: 'Value' previously declared here
 8 |     public var wrappedValue: [Key: Value]
 9 |
   :
30 |
31 |     private struct AnyDecodableValue: Decodable {}
32 |     private struct LossyDecodableValue<Value: Decodable>: Decodable {
   |                                        `- warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
33 |         let value: Value
34 |
[15/20] Compiling BetterCodable LossyDictionary.swift
/Users/admin/builder/spi-builder-workspace/Sources/BetterCodable/LossyDictionary.swift:32:40: warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 5 | /// This is useful if the Dictionary is intended to contain non-optional values.
 6 | @propertyWrapper
 7 | public struct LossyDictionary<Key: Hashable, Value> {
   |                                              `- note: 'Value' previously declared here
 8 |     public var wrappedValue: [Key: Value]
 9 |
   :
30 |
31 |     private struct AnyDecodableValue: Decodable {}
32 |     private struct LossyDecodableValue<Value: Decodable>: Decodable {
   |                                        `- warning: generic parameter 'Value' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
33 |         let value: Value
34 |
[16/20] Compiling BetterCodable DefaultFalse.swift
[17/20] Compiling BetterCodable DefaultTrue.swift
[18/20] Compiling BetterCodable LosslessArray.swift
[19/20] Compiling BetterCodable LosslessValue.swift
[20/20] Compiling BetterCodable YearMonthDayStrategy.swift
Build complete! (11.10s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "BetterCodable",
  "name" : "BetterCodable",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "10.0"
    },
    {
      "name" : "macos",
      "version" : "10.12"
    },
    {
      "name" : "tvos",
      "version" : "10.0"
    },
    {
      "name" : "watchos",
      "version" : "3.0"
    }
  ],
  "products" : [
    {
      "name" : "BetterCodable",
      "targets" : [
        "BetterCodable"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "BetterCodableTests",
      "module_type" : "SwiftTarget",
      "name" : "BetterCodableTests",
      "path" : "Tests/BetterCodableTests",
      "sources" : [
        "DateValueTests.swift",
        "DefaulEmptyDictionaryTests.swift",
        "DefaultEmptyArrayTests.swift",
        "DefaultFalseTests.swift",
        "DefaultTrueTests.swift",
        "LosslessArrayTests.swift",
        "LosslessCustomValueTests.swift",
        "LosslessValueTests.swift",
        "LossyArrayTests.swift",
        "LossyDictionaryTests.swift",
        "LossyOptionalTests.swift",
        "RawRepresentableTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "BetterCodable"
      ],
      "type" : "test"
    },
    {
      "c99name" : "BetterCodable",
      "module_type" : "SwiftTarget",
      "name" : "BetterCodable",
      "path" : "Sources/BetterCodable",
      "product_memberships" : [
        "BetterCodable"
      ],
      "sources" : [
        "DateValue.swift",
        "DefaultCodable.swift",
        "DefaultEmptyArray.swift",
        "DefaultEmptyDictionary.swift",
        "DefaultFalse.swift",
        "DefaultTrue.swift",
        "ISO8601Strategy.swift",
        "ISO8601WithFractionalSecondsStrategy.swift",
        "LosslessArray.swift",
        "LosslessValue.swift",
        "LossyArray.swift",
        "LossyDictionary.swift",
        "LossyOptional.swift",
        "RFC2822Strategy.swift",
        "RFC3339Strategy.swift",
        "TimestampStrategy.swift",
        "YearMonthDayStrategy.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
Done.