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 MoreCodable, reference 1.3.2 (95e3cc), with Swift 6.0 for macOS (SPM) on 3 Nov 2024 22:17:42 UTC.

Swift 6 data race errors: 4

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/tattn/MoreCodable.git
Reference: 1.3.2
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/tattn/MoreCodable
 * tag               1.3.2      -> FETCH_HEAD
HEAD is now at 95e3cc7 Update build settings
Cloned https://github.com/tattn/MoreCodable.git
Revision (git rev-parse @):
95e3cc73810e1958a81a01d189a318828b14e44f
SUCCESS checkout https://github.com/tattn/MoreCodable.git at 1.3.2
========================================
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": "morecodable",
      "name": "MoreCodable",
      "url": "https://github.com/tattn/MoreCodable.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/MoreCodable",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/tattn/MoreCodable.git
[1/345] Fetching morecodable
Fetched https://github.com/tattn/MoreCodable.git from cache (0.75s)
Creating working copy for https://github.com/tattn/MoreCodable.git
Working copy of https://github.com/tattn/MoreCodable.git resolved at 1.3.2 (95e3cc7)
warning: '.resolve-product-dependencies': dependency 'morecodable' 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/tattn/MoreCodable.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
[3/20] Compiling MoreCodable StringTo.swift
[4/20] Compiling MoreCodable URLQueryItem+.swift
[5/21] Compiling MoreCodable URLQueryItemsDecoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/URLQueryItemsDecoder.swift:71:5: warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
 69 |
 70 | extension URLQueryItemsDecoder {
 71 |     open func decode<T: Decodable>(_ type: T.Type, from container: [URLQueryItem]) throws -> T {
    |     `- warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
 72 |         storage.push(container: container)
 73 |         return try T(from: self)
[6/21] Compiling MoreCodable MultiDateFormat.swift
[7/21] Compiling MoreCodable ObjectMerger.swift
[8/21] Compiling MoreCodable AnyCodingKey.swift
[9/21] Compiling MoreCodable CodableAny.swift
[10/21] Compiling MoreCodable DictionaryDecoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/DictionaryDecoder.swift:112:5: warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
110 |
111 | extension DictionaryDecoder {
112 |     open func decode<T : Decodable>(_ type: T.Type, from container: Any) throws -> T {
    |     `- warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
113 |         return try unbox(container, as: T.self)
114 |     }
/Users/admin/builder/spi-builder-workspace/Sources/DictionaryDecoder.swift:61:9: warning: switch covers known cases, but 'JSONDecoder.DateDecodingStrategy' may have additional unknown values, possibly added in future versions; this is an error in the Swift 6 language mode
 59 |
 60 |     private func unwrapDate() throws -> Date {
 61 |         switch dateDecodingStrategy {
    |         |- warning: switch covers known cases, but 'JSONDecoder.DateDecodingStrategy' may have additional unknown values, possibly added in future versions; this is an error in the Swift 6 language mode
    |         `- note: handle unknown values using "@unknown default"
 62 |         case .deferredToDate:
 63 |             return try Date(from: self)
/Users/admin/builder/spi-builder-workspace/Sources/MoreJSONEncoder.swift:1020:5: warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
1018 |
1019 | // NOTE: This value is implicitly lazy and _must_ be lazy. We're compiled against the latest SDK (w/ ISO8601DateFormatter), but linked against whichever Foundation the user has. ISO8601DateFormatter might not exist, so we better not hit this code path on an older OS.
1020 | var _iso8601Formatter: DateFormatter = {
     |     |- warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
     |     |- note: convert '_iso8601Formatter' to a 'let' constant to make 'Sendable' shared state immutable
     |     |- 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
1021 |     let formatter = DateFormatter()
1022 |     formatter.locale = Locale(identifier: "en_US_POSIX")
/Users/admin/builder/spi-builder-workspace/Sources/DictionaryEncoder.swift:67:5: warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
 65 |
 66 | extension DictionaryEncoder {
 67 |     open func encode<T: Encodable>(_ value: T) throws -> [String: Any] {
    |     `- warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
 68 |         do {
 69 |             return try castOrThrow([String: Any].self, try box(value))
/Users/admin/builder/spi-builder-workspace/Sources/DictionaryEncoder.swift:42:9: warning: switch covers known cases, but 'JSONEncoder.DateEncodingStrategy' may have additional unknown values, possibly added in future versions; this is an error in the Swift 6 language mode
 40 |
 41 |     func wrapDate(_ date: Date) throws -> Any {
 42 |         switch dateEncodingStrategy {
    |         |- warning: switch covers known cases, but 'JSONEncoder.DateEncodingStrategy' may have additional unknown values, possibly added in future versions; this is an error in the Swift 6 language mode
    |         `- note: handle unknown values using "@unknown default"
 43 |         case .deferredToDate:
 44 |             try date.encode(to: self)
[11/21] Compiling MoreCodable DictionaryEncoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/DictionaryDecoder.swift:112:5: warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
110 |
111 | extension DictionaryDecoder {
112 |     open func decode<T : Decodable>(_ type: T.Type, from container: Any) throws -> T {
    |     `- warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
113 |         return try unbox(container, as: T.self)
114 |     }
/Users/admin/builder/spi-builder-workspace/Sources/DictionaryDecoder.swift:61:9: warning: switch covers known cases, but 'JSONDecoder.DateDecodingStrategy' may have additional unknown values, possibly added in future versions; this is an error in the Swift 6 language mode
 59 |
 60 |     private func unwrapDate() throws -> Date {
 61 |         switch dateDecodingStrategy {
    |         |- warning: switch covers known cases, but 'JSONDecoder.DateDecodingStrategy' may have additional unknown values, possibly added in future versions; this is an error in the Swift 6 language mode
    |         `- note: handle unknown values using "@unknown default"
 62 |         case .deferredToDate:
 63 |             return try Date(from: self)
/Users/admin/builder/spi-builder-workspace/Sources/MoreJSONEncoder.swift:1020:5: warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
1018 |
1019 | // NOTE: This value is implicitly lazy and _must_ be lazy. We're compiled against the latest SDK (w/ ISO8601DateFormatter), but linked against whichever Foundation the user has. ISO8601DateFormatter might not exist, so we better not hit this code path on an older OS.
1020 | var _iso8601Formatter: DateFormatter = {
     |     |- warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
     |     |- note: convert '_iso8601Formatter' to a 'let' constant to make 'Sendable' shared state immutable
     |     |- 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
1021 |     let formatter = DateFormatter()
1022 |     formatter.locale = Locale(identifier: "en_US_POSIX")
/Users/admin/builder/spi-builder-workspace/Sources/DictionaryEncoder.swift:67:5: warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
 65 |
 66 | extension DictionaryEncoder {
 67 |     open func encode<T: Encodable>(_ value: T) throws -> [String: Any] {
    |     `- warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
 68 |         do {
 69 |             return try castOrThrow([String: Any].self, try box(value))
/Users/admin/builder/spi-builder-workspace/Sources/DictionaryEncoder.swift:42:9: warning: switch covers known cases, but 'JSONEncoder.DateEncodingStrategy' may have additional unknown values, possibly added in future versions; this is an error in the Swift 6 language mode
 40 |
 41 |     func wrapDate(_ date: Date) throws -> Any {
 42 |         switch dateEncodingStrategy {
    |         |- warning: switch covers known cases, but 'JSONEncoder.DateEncodingStrategy' may have additional unknown values, possibly added in future versions; this is an error in the Swift 6 language mode
    |         `- note: handle unknown values using "@unknown default"
 43 |         case .deferredToDate:
 44 |             try date.encode(to: self)
[12/21] Compiling MoreCodable Failable.swift
[13/21] Compiling MoreCodable InternalFunction.swift
[14/21] Compiling MoreCodable CodableDictionary.swift
/Users/admin/builder/spi-builder-workspace/Sources/DictionaryCachableEncoder.swift:39:27: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'DictionaryCachableEncoder.DefaultCache' may have shared mutable state; this is an error in the Swift 6 language mode
36 |
37 | extension DictionaryCachableEncoder {
38 |     open class DefaultCache: DictionaryCachableCacheProtocol {
   |                `- note: class 'DefaultCache' does not conform to the 'Sendable' protocol
39 |         public static let shared = DefaultCache()
   |                           |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'DictionaryCachableEncoder.DefaultCache' may have shared mutable state; this is an error in the Swift 6 language mode
   |                           |- note: annotate 'shared' 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
40 |
41 |         open var storage: [AnyHashable: Any] = [:]
/Users/admin/builder/spi-builder-workspace/Sources/DictionaryCachableEncoder.swift:33:50: warning: using 'class' keyword to define a class-constrained protocol is deprecated; use 'AnyObject' instead
31 | // MARK: cache related
32 |
33 | public protocol DictionaryCachableCacheProtocol: class {
   |                                                  `- warning: using 'class' keyword to define a class-constrained protocol is deprecated; use 'AnyObject' instead
34 |     var storage: [AnyHashable: Any] { get set }
35 | }
[15/21] Compiling MoreCodable DictionaryCachableEncoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/DictionaryCachableEncoder.swift:39:27: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'DictionaryCachableEncoder.DefaultCache' may have shared mutable state; this is an error in the Swift 6 language mode
36 |
37 | extension DictionaryCachableEncoder {
38 |     open class DefaultCache: DictionaryCachableCacheProtocol {
   |                `- note: class 'DefaultCache' does not conform to the 'Sendable' protocol
39 |         public static let shared = DefaultCache()
   |                           |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'DictionaryCachableEncoder.DefaultCache' may have shared mutable state; this is an error in the Swift 6 language mode
   |                           |- note: annotate 'shared' 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
40 |
41 |         open var storage: [AnyHashable: Any] = [:]
/Users/admin/builder/spi-builder-workspace/Sources/DictionaryCachableEncoder.swift:33:50: warning: using 'class' keyword to define a class-constrained protocol is deprecated; use 'AnyObject' instead
31 | // MARK: cache related
32 |
33 | public protocol DictionaryCachableCacheProtocol: class {
   |                                                  `- warning: using 'class' keyword to define a class-constrained protocol is deprecated; use 'AnyObject' instead
34 |     var storage: [AnyHashable: Any] { get set }
35 | }
[16/21] Compiling MoreCodable RuleBasedCodingKey.swift
[17/21] Compiling MoreCodable Storage.swift
[18/21] Emitting module MoreCodable
/Users/admin/builder/spi-builder-workspace/Sources/DictionaryCachableEncoder.swift:39:27: warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'DictionaryCachableEncoder.DefaultCache' may have shared mutable state; this is an error in the Swift 6 language mode
36 |
37 | extension DictionaryCachableEncoder {
38 |     open class DefaultCache: DictionaryCachableCacheProtocol {
   |                `- note: class 'DefaultCache' does not conform to the 'Sendable' protocol
39 |         public static let shared = DefaultCache()
   |                           |- warning: static property 'shared' is not concurrency-safe because non-'Sendable' type 'DictionaryCachableEncoder.DefaultCache' may have shared mutable state; this is an error in the Swift 6 language mode
   |                           |- note: annotate 'shared' 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
40 |
41 |         open var storage: [AnyHashable: Any] = [:]
/Users/admin/builder/spi-builder-workspace/Sources/DictionaryCachableEncoder.swift:33:50: warning: using 'class' keyword to define a class-constrained protocol is deprecated; use 'AnyObject' instead
31 | // MARK: cache related
32 |
33 | public protocol DictionaryCachableCacheProtocol: class {
   |                                                  `- warning: using 'class' keyword to define a class-constrained protocol is deprecated; use 'AnyObject' instead
34 |     var storage: [AnyHashable: Any] { get set }
35 | }
/Users/admin/builder/spi-builder-workspace/Sources/DictionaryDecoder.swift:112:5: warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
110 |
111 | extension DictionaryDecoder {
112 |     open func decode<T : Decodable>(_ type: T.Type, from container: Any) throws -> T {
    |     `- warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
113 |         return try unbox(container, as: T.self)
114 |     }
/Users/admin/builder/spi-builder-workspace/Sources/DictionaryEncoder.swift:67:5: warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
 65 |
 66 | extension DictionaryEncoder {
 67 |     open func encode<T: Encodable>(_ value: T) throws -> [String: Any] {
    |     `- warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
 68 |         do {
 69 |             return try castOrThrow([String: Any].self, try box(value))
/Users/admin/builder/spi-builder-workspace/Sources/MoreJSONEncoder.swift:41:27: warning: static property 'prettyPrinted' is not concurrency-safe because non-'Sendable' type 'MoreJSONEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
  29 |
  30 |     /// The formatting of the output JSON data.
  31 |     public struct OutputFormatting : OptionSet {
     |                   `- note: consider making struct 'OutputFormatting' conform to the 'Sendable' protocol
  32 |         /// The format's default value.
  33 |         public let rawValue: UInt
     :
  39 |
  40 |         /// Produce human-readable JSON with indented output.
  41 |         public static let prettyPrinted = OutputFormatting(rawValue: 1 << 0)
     |                           |- warning: static property 'prettyPrinted' is not concurrency-safe because non-'Sendable' type 'MoreJSONEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
     |                           |- note: annotate 'prettyPrinted' 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
  42 |
  43 |         /// Produce JSON with dictionary keys sorted in lexicographic order.
/Users/admin/builder/spi-builder-workspace/Sources/MoreJSONEncoder.swift:45:27: warning: static property 'sortedKeys' is not concurrency-safe because non-'Sendable' type 'MoreJSONEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
  29 |
  30 |     /// The formatting of the output JSON data.
  31 |     public struct OutputFormatting : OptionSet {
     |                   `- note: consider making struct 'OutputFormatting' conform to the 'Sendable' protocol
  32 |         /// The format's default value.
  33 |         public let rawValue: UInt
     :
  43 |         /// Produce JSON with dictionary keys sorted in lexicographic order.
  44 |         @available(macOS 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *)
  45 |         public static let sortedKeys    = OutputFormatting(rawValue: 1 << 1)
     |                           |- warning: static property 'sortedKeys' is not concurrency-safe because non-'Sendable' type 'MoreJSONEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
     |                           |- note: annotate 'sortedKeys' 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
  46 |     }
  47 |
/Users/admin/builder/spi-builder-workspace/Sources/MoreJSONEncoder.swift:1020:5: warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
1018 |
1019 | // NOTE: This value is implicitly lazy and _must_ be lazy. We're compiled against the latest SDK (w/ ISO8601DateFormatter), but linked against whichever Foundation the user has. ISO8601DateFormatter might not exist, so we better not hit this code path on an older OS.
1020 | var _iso8601Formatter: DateFormatter = {
     |     |- warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
     |     |- note: convert '_iso8601Formatter' to a 'let' constant to make 'Sendable' shared state immutable
     |     |- 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
1021 |     let formatter = DateFormatter()
1022 |     formatter.locale = Locale(identifier: "en_US_POSIX")
/Users/admin/builder/spi-builder-workspace/Sources/URLQueryItemsDecoder.swift:71:5: warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
 69 |
 70 | extension URLQueryItemsDecoder {
 71 |     open func decode<T: Decodable>(_ type: T.Type, from container: [URLQueryItem]) throws -> T {
    |     `- warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
 72 |         storage.push(container: container)
 73 |         return try T(from: self)
/Users/admin/builder/spi-builder-workspace/Sources/URLQueryItemsEncoder.swift:37:5: warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
 35 |
 36 | extension URLQueryItemsEncoder {
 37 |     open func encode<T: Encodable>(_ value: T) throws -> [URLQueryItem] {
    |     `- warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
 38 |         do {
 39 |             return try castOrThrow([URLQueryItem].self, try box(value))
[19/21] Compiling MoreCodable MoreJSONDecoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/MoreJSONEncoder.swift:1020:5: warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
1018 |
1019 | // NOTE: This value is implicitly lazy and _must_ be lazy. We're compiled against the latest SDK (w/ ISO8601DateFormatter), but linked against whichever Foundation the user has. ISO8601DateFormatter might not exist, so we better not hit this code path on an older OS.
1020 | var _iso8601Formatter: DateFormatter = {
     |     |- warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
     |     |- note: convert '_iso8601Formatter' to a 'let' constant to make 'Sendable' shared state immutable
     |     |- 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
1021 |     let formatter = DateFormatter()
1022 |     formatter.locale = Locale(identifier: "en_US_POSIX")
/Users/admin/builder/spi-builder-workspace/Sources/MoreJSONEncoder.swift:41:27: warning: static property 'prettyPrinted' is not concurrency-safe because non-'Sendable' type 'MoreJSONEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
  29 |
  30 |     /// The formatting of the output JSON data.
  31 |     public struct OutputFormatting : OptionSet {
     |                   `- note: consider making struct 'OutputFormatting' conform to the 'Sendable' protocol
  32 |         /// The format's default value.
  33 |         public let rawValue: UInt
     :
  39 |
  40 |         /// Produce human-readable JSON with indented output.
  41 |         public static let prettyPrinted = OutputFormatting(rawValue: 1 << 0)
     |                           |- warning: static property 'prettyPrinted' is not concurrency-safe because non-'Sendable' type 'MoreJSONEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
     |                           |- note: annotate 'prettyPrinted' 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
  42 |
  43 |         /// Produce JSON with dictionary keys sorted in lexicographic order.
/Users/admin/builder/spi-builder-workspace/Sources/MoreJSONEncoder.swift:45:27: warning: static property 'sortedKeys' is not concurrency-safe because non-'Sendable' type 'MoreJSONEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
  29 |
  30 |     /// The formatting of the output JSON data.
  31 |     public struct OutputFormatting : OptionSet {
     |                   `- note: consider making struct 'OutputFormatting' conform to the 'Sendable' protocol
  32 |         /// The format's default value.
  33 |         public let rawValue: UInt
     :
  43 |         /// Produce JSON with dictionary keys sorted in lexicographic order.
  44 |         @available(macOS 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *)
  45 |         public static let sortedKeys    = OutputFormatting(rawValue: 1 << 1)
     |                           |- warning: static property 'sortedKeys' is not concurrency-safe because non-'Sendable' type 'MoreJSONEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
     |                           |- note: annotate 'sortedKeys' 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
  46 |     }
  47 |
[20/21] Compiling MoreCodable MoreJSONEncoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/MoreJSONEncoder.swift:1020:5: warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
1018 |
1019 | // NOTE: This value is implicitly lazy and _must_ be lazy. We're compiled against the latest SDK (w/ ISO8601DateFormatter), but linked against whichever Foundation the user has. ISO8601DateFormatter might not exist, so we better not hit this code path on an older OS.
1020 | var _iso8601Formatter: DateFormatter = {
     |     |- warning: var '_iso8601Formatter' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
     |     |- note: convert '_iso8601Formatter' to a 'let' constant to make 'Sendable' shared state immutable
     |     |- 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
1021 |     let formatter = DateFormatter()
1022 |     formatter.locale = Locale(identifier: "en_US_POSIX")
/Users/admin/builder/spi-builder-workspace/Sources/MoreJSONEncoder.swift:41:27: warning: static property 'prettyPrinted' is not concurrency-safe because non-'Sendable' type 'MoreJSONEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
  29 |
  30 |     /// The formatting of the output JSON data.
  31 |     public struct OutputFormatting : OptionSet {
     |                   `- note: consider making struct 'OutputFormatting' conform to the 'Sendable' protocol
  32 |         /// The format's default value.
  33 |         public let rawValue: UInt
     :
  39 |
  40 |         /// Produce human-readable JSON with indented output.
  41 |         public static let prettyPrinted = OutputFormatting(rawValue: 1 << 0)
     |                           |- warning: static property 'prettyPrinted' is not concurrency-safe because non-'Sendable' type 'MoreJSONEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
     |                           |- note: annotate 'prettyPrinted' 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
  42 |
  43 |         /// Produce JSON with dictionary keys sorted in lexicographic order.
/Users/admin/builder/spi-builder-workspace/Sources/MoreJSONEncoder.swift:45:27: warning: static property 'sortedKeys' is not concurrency-safe because non-'Sendable' type 'MoreJSONEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
  29 |
  30 |     /// The formatting of the output JSON data.
  31 |     public struct OutputFormatting : OptionSet {
     |                   `- note: consider making struct 'OutputFormatting' conform to the 'Sendable' protocol
  32 |         /// The format's default value.
  33 |         public let rawValue: UInt
     :
  43 |         /// Produce JSON with dictionary keys sorted in lexicographic order.
  44 |         @available(macOS 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *)
  45 |         public static let sortedKeys    = OutputFormatting(rawValue: 1 << 1)
     |                           |- warning: static property 'sortedKeys' is not concurrency-safe because non-'Sendable' type 'MoreJSONEncoder.OutputFormatting' may have shared mutable state; this is an error in the Swift 6 language mode
     |                           |- note: annotate 'sortedKeys' 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
  46 |     }
  47 |
[21/21] Compiling MoreCodable URLQueryItemsEncoder.swift
/Users/admin/builder/spi-builder-workspace/Sources/URLQueryItemsEncoder.swift:37:5: warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
 35 |
 36 | extension URLQueryItemsEncoder {
 37 |     open func encode<T: Encodable>(_ value: T) throws -> [URLQueryItem] {
    |     `- warning: non-'@objc' instance method in extensions cannot be overridden; use 'public' instead
 38 |         do {
 39 |             return try castOrThrow([URLQueryItem].self, try box(value))
Build complete! (13.51s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "MoreCodable",
  "name" : "MoreCodable",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.12"
    },
    {
      "name" : "ios",
      "version" : "10.0"
    },
    {
      "name" : "tvos",
      "version" : "10.0"
    },
    {
      "name" : "watchos",
      "version" : "3.0"
    }
  ],
  "products" : [
    {
      "name" : "MoreCodable",
      "targets" : [
        "MoreCodable"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "MoreCodableTests",
      "module_type" : "SwiftTarget",
      "name" : "MoreCodableTests",
      "path" : "Tests",
      "sources" : [
        "CodableAnyTests.swift",
        "CodableDictionaryTests.swift",
        "DictionaryCachableEncoderTests.swift",
        "DictionaryDecoderTests.swift",
        "DictionaryEncoderTests.swift",
        "FailableTests.swift",
        "MoreJSONDecoderTests.swift",
        "MoreJSONEncoderTests.swift",
        "ObjectMergerTests.swift",
        "RuleBasedCodingKeyTests.swift",
        "StringToTests.swift",
        "URLQueryItemsDecoderTests.swift",
        "URLQueryItemsEncoderTests.swift"
      ],
      "target_dependencies" : [
        "MoreCodable"
      ],
      "type" : "test"
    },
    {
      "c99name" : "MoreCodable",
      "module_type" : "SwiftTarget",
      "name" : "MoreCodable",
      "path" : "Sources",
      "product_memberships" : [
        "MoreCodable"
      ],
      "sources" : [
        "AnyCodingKey.swift",
        "CodableAny.swift",
        "CodableDictionary.swift",
        "DictionaryCachableEncoder.swift",
        "DictionaryDecoder.swift",
        "DictionaryEncoder.swift",
        "Failable.swift",
        "InternalFunction.swift",
        "MoreJSONDecoder.swift",
        "MoreJSONEncoder.swift",
        "MultiDateFormat.swift",
        "ObjectMerger.swift",
        "RuleBasedCodingKey.swift",
        "Storage.swift",
        "StringTo.swift",
        "URLQueryItem+.swift",
        "URLQueryItemsDecoder.swift",
        "URLQueryItemsEncoder.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Done.