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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 SwiftShell, reference master (99680b), with Swift 6.0 for macOS (SPM) on 1 Nov 2024 08:19:22 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/kareman/SwiftShell.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/kareman/SwiftShell
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 99680b2 Release 5.1 (#95)
Cloned https://github.com/kareman/SwiftShell.git
Revision (git rev-parse @):
99680b2efc7c7dbcace1da0b3979d266f02e213c
SUCCESS checkout https://github.com/kareman/SwiftShell.git at master
========================================
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": "swiftshell",
      "name": "SwiftShell",
      "url": "https://github.com/kareman/SwiftShell.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/SwiftShell",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/kareman/SwiftShell.git
[1/4863] Fetching swiftshell
Fetched https://github.com/kareman/SwiftShell.git from cache (1.30s)
Creating working copy for https://github.com/kareman/SwiftShell.git
Working copy of https://github.com/kareman/SwiftShell.git resolved at master (99680b2)
warning: '.resolve-product-dependencies': dependency 'swiftshell' 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/kareman/SwiftShell.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
[3/12] Compiling SwiftShell Lazy-split.swift
[4/12] Compiling SwiftShell String.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Context.swift:142:12: warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
 88 | }
 89 |
 90 | public final class MainContext: Context, CommandRunning {
    |                    `- note: class 'MainContext' does not conform to the 'Sendable' protocol
 91 | 	/// The default character encoding used throughout SwiftShell.
 92 | 	/// Only affects stdin, stdout and stderror if they have not been used yet.
    :
140 | }
141 |
142 | public let main = MainContext()
    |            |- warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'main' 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
143 |
[5/12] Compiling SwiftShell Context.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Context.swift:142:12: warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
 88 | }
 89 |
 90 | public final class MainContext: Context, CommandRunning {
    |                    `- note: class 'MainContext' does not conform to the 'Sendable' protocol
 91 | 	/// The default character encoding used throughout SwiftShell.
 92 | 	/// Only affects stdin, stdout and stderror if they have not been used yet.
    :
140 | }
141 |
142 | public let main = MainContext()
    |            |- warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'main' 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
143 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Files.swift:11:12: warning: let 'Files' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state; this is an error in the Swift 6 language mode
 9 |
10 | /** The default FileManager */
11 | public let Files = FileManager.default
   |            |- warning: let 'Files' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: annotate 'Files' 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
12 |
13 | /** Appends file or directory url to directory url */
Foundation.FileManager:1:12: note: class 'FileManager' does not conform to the 'Sendable' protocol
  1 | open class FileManager : NSObject {
    |            `- note: class 'FileManager' does not conform to the 'Sendable' protocol
  2 |     open class var `default`: FileManager { get }
  3 |     @available(swift, obsoleted: 3, renamed: "default")
[6/12] Compiling SwiftShell Process.swift
[7/12] Compiling SwiftShell Array.swift
[8/12] Compiling SwiftShell Files.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Files.swift:11:12: warning: let 'Files' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state; this is an error in the Swift 6 language mode
 9 |
10 | /** The default FileManager */
11 | public let Files = FileManager.default
   |            |- warning: let 'Files' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: annotate 'Files' 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
12 |
13 | /** Appends file or directory url to directory url */
Foundation.FileManager:1:12: note: class 'FileManager' does not conform to the 'Sendable' protocol
  1 | open class FileManager : NSObject {
    |            `- note: class 'FileManager' does not conform to the 'Sendable' protocol
  2 |     open class var `default`: FileManager { get }
  3 |     @available(swift, obsoleted: 3, renamed: "default")
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Context.swift:142:12: warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
 88 | }
 89 |
 90 | public final class MainContext: Context, CommandRunning {
    |                    `- note: class 'MainContext' does not conform to the 'Sendable' protocol
 91 | 	/// The default character encoding used throughout SwiftShell.
 92 | 	/// Only affects stdin, stdout and stderror if they have not been used yet.
    :
140 | }
141 |
142 | public let main = MainContext()
    |            |- warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'main' 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
143 |
[9/12] Compiling SwiftShell Stream.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Context.swift:142:12: warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
 88 | }
 89 |
 90 | public final class MainContext: Context, CommandRunning {
    |                    `- note: class 'MainContext' does not conform to the 'Sendable' protocol
 91 | 	/// The default character encoding used throughout SwiftShell.
 92 | 	/// Only affects stdin, stdout and stderror if they have not been used yet.
    :
140 | }
141 |
142 | public let main = MainContext()
    |            |- warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'main' 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
143 |
<unknown>:0: note: consider making generic parameter 'Self' conform to the 'Sendable' protocol
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Stream/Stream.swift:113:4: warning: capture of 'self' with non-sendable type 'Self?' in a `@Sendable` closure; this is an error in the Swift 6 language mode
111 | 	public func onOutput(_ handler: @escaping (ReadableStream) -> Void) {
112 | 		filehandle.readabilityHandler = { [weak self] _ in
113 | 			self.map(handler)
    |    `- warning: capture of 'self' with non-sendable type 'Self?' in a `@Sendable` closure; this is an error in the Swift 6 language mode
114 | 		}
115 | 	}
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Stream/Stream.swift:113:13: warning: capture of 'handler' with non-sendable type '(any ReadableStream) -> Void' in a `@Sendable` closure; this is an error in the Swift 6 language mode
111 | 	public func onOutput(_ handler: @escaping (ReadableStream) -> Void) {
112 | 		filehandle.readabilityHandler = { [weak self] _ in
113 | 			self.map(handler)
    |             |- warning: capture of 'handler' with non-sendable type '(any ReadableStream) -> Void' in a `@Sendable` closure; this is an error in the Swift 6 language mode
    |             `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
114 | 		}
115 | 	}
[10/12] Compiling SwiftShell Bash.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Context.swift:142:12: warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
 88 | }
 89 |
 90 | public final class MainContext: Context, CommandRunning {
    |                    `- note: class 'MainContext' does not conform to the 'Sendable' protocol
 91 | 	/// The default character encoding used throughout SwiftShell.
 92 | 	/// Only affects stdin, stdout and stderror if they have not been used yet.
    :
140 | }
141 |
142 | public let main = MainContext()
    |            |- warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'main' 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
143 |
[11/12] Emitting module SwiftShell
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Context.swift:142:12: warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
 88 | }
 89 |
 90 | public final class MainContext: Context, CommandRunning {
    |                    `- note: class 'MainContext' does not conform to the 'Sendable' protocol
 91 | 	/// The default character encoding used throughout SwiftShell.
 92 | 	/// Only affects stdin, stdout and stderror if they have not been used yet.
    :
140 | }
141 |
142 | public let main = MainContext()
    |            |- warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'main' 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
143 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Files.swift:11:12: warning: let 'Files' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state; this is an error in the Swift 6 language mode
 9 |
10 | /** The default FileManager */
11 | public let Files = FileManager.default
   |            |- warning: let 'Files' is not concurrency-safe because non-'Sendable' type 'FileManager' may have shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: annotate 'Files' 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
12 |
13 | /** Appends file or directory url to directory url */
Foundation.FileManager:1:12: note: class 'FileManager' does not conform to the 'Sendable' protocol
  1 | open class FileManager : NSObject {
    |            `- note: class 'FileManager' does not conform to the 'Sendable' protocol
  2 |     open class var `default`: FileManager { get }
  3 |     @available(swift, obsoleted: 3, renamed: "default")
[12/12] Compiling SwiftShell Command.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Context.swift:142:12: warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
 88 | }
 89 |
 90 | public final class MainContext: Context, CommandRunning {
    |                    `- note: class 'MainContext' does not conform to the 'Sendable' protocol
 91 | 	/// The default character encoding used throughout SwiftShell.
 92 | 	/// Only affects stdin, stdout and stderror if they have not been used yet.
    :
140 | }
141 |
142 | public let main = MainContext()
    |            |- warning: let 'main' is not concurrency-safe because non-'Sendable' type 'MainContext' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'main' 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
143 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Command.swift:151:17: warning: capture of 'command' with non-sendable type 'AsyncCommand' in a `@Sendable` closure; this is an error in the Swift 6 language mode
149 | 			if command.stdout.filehandle.fileDescriptor != command.stderror.filehandle.fileDescriptor {
150 | 				DispatchQueue.global().async(group: group) {
151 | 					stderror = command.stderror.readData()
    |                 `- warning: capture of 'command' with non-sendable type 'AsyncCommand' in a `@Sendable` closure; this is an error in the Swift 6 language mode
152 | 				}
153 | 			}
    :
334 |
335 | /** Output from the 'runAsync' commands. */
336 | public final class AsyncCommand: PrintedAsyncCommand {
    |                    `- note: class 'AsyncCommand' does not conform to the 'Sendable' protocol
337 | 	public let stdout: ReadableStream
338 | 	public let stderror: ReadableStream
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Command.swift:151:6: warning: mutation of captured var 'stderror' in concurrently-executing code; this is an error in the Swift 6 language mode
149 | 			if command.stdout.filehandle.fileDescriptor != command.stderror.filehandle.fileDescriptor {
150 | 				DispatchQueue.global().async(group: group) {
151 | 					stderror = command.stderror.readData()
    |      `- warning: mutation of captured var 'stderror' in concurrently-executing code; this is an error in the Swift 6 language mode
152 | 				}
153 | 			}
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Command.swift:329:4: warning: capture of 'handler' with non-sendable type '(PrintedAsyncCommand) -> Void' in a `@Sendable` closure; this is an error in the Swift 6 language mode
327 | 	@discardableResult public func onCompletion(_ handler: @escaping (PrintedAsyncCommand) -> Void) -> Self {
328 | 		process.terminationHandler = { _ in
329 | 			handler(self)
    |    |- warning: capture of 'handler' with non-sendable type '(PrintedAsyncCommand) -> Void' in a `@Sendable` closure; this is an error in the Swift 6 language mode
    |    `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
330 | 		}
331 | 		return self
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Command.swift:329:12: warning: capture of 'self' with non-sendable type 'Self' in a `@Sendable` closure; this is an error in the Swift 6 language mode
239 |
240 | /// Output from the `runAsyncAndPrint` commands.
241 | public class PrintedAsyncCommand {
    |              `- note: class 'PrintedAsyncCommand' does not conform to the 'Sendable' protocol
242 | 	fileprivate let process: Process
243 |
    :
327 | 	@discardableResult public func onCompletion(_ handler: @escaping (PrintedAsyncCommand) -> Void) -> Self {
328 | 		process.terminationHandler = { _ in
329 | 			handler(self)
    |            `- warning: capture of 'self' with non-sendable type 'Self' in a `@Sendable` closure; this is an error in the Swift 6 language mode
330 | 		}
331 | 		return self
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Command.swift:362:4: warning: capture of 'handler' with non-sendable type '(AsyncCommand) -> Void' in a `@Sendable` closure; this is an error in the Swift 6 language mode
360 | 	@discardableResult public override func onCompletion(_ handler: @escaping (AsyncCommand) -> Void) -> Self {
361 | 		process.terminationHandler = { _ in
362 | 			handler(self)
    |    |- warning: capture of 'handler' with non-sendable type '(AsyncCommand) -> Void' in a `@Sendable` closure; this is an error in the Swift 6 language mode
    |    `- note: a function type must be marked '@Sendable' to conform to 'Sendable'
363 | 		}
364 | 		return self
/Users/admin/builder/spi-builder-workspace/Sources/SwiftShell/Command.swift:362:12: warning: capture of 'self' with non-sendable type 'Self' in a `@Sendable` closure; this is an error in the Swift 6 language mode
334 |
335 | /** Output from the 'runAsync' commands. */
336 | public final class AsyncCommand: PrintedAsyncCommand {
    |                    `- note: class 'AsyncCommand' does not conform to the 'Sendable' protocol
337 | 	public let stdout: ReadableStream
338 | 	public let stderror: ReadableStream
    :
360 | 	@discardableResult public override func onCompletion(_ handler: @escaping (AsyncCommand) -> Void) -> Self {
361 | 		process.terminationHandler = { _ in
362 | 			handler(self)
    |            `- warning: capture of 'self' with non-sendable type 'Self' in a `@Sendable` closure; this is an error in the Swift 6 language mode
363 | 		}
364 | 		return self
Build complete! (10.15s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftShell",
  "name" : "SwiftShell",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SwiftShell",
      "targets" : [
        "SwiftShell"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "4.2",
    "5"
  ],
  "targets" : [
    {
      "c99name" : "SwiftShellTests",
      "module_type" : "SwiftTarget",
      "name" : "SwiftShellTests",
      "path" : "Tests/SwiftShellTests",
      "sources" : [
        "Command_Tests.swift",
        "Context_Tests.swift",
        "Files_Tests.swift",
        "String_Tests.swift"
      ],
      "target_dependencies" : [
        "SwiftShell"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SwiftShell",
      "module_type" : "SwiftTarget",
      "name" : "SwiftShell",
      "path" : "Sources/SwiftShell",
      "product_memberships" : [
        "SwiftShell"
      ],
      "sources" : [
        "Bash.swift",
        "Command.swift",
        "Context.swift",
        "Files.swift",
        "General/Array.swift",
        "Process.swift",
        "Stream/Lazy-split.swift",
        "Stream/Stream.swift",
        "String.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "StreamTests",
      "module_type" : "SwiftTarget",
      "name" : "StreamTests",
      "path" : "Tests/StreamTests",
      "sources" : [
        "Collection_Tests.swift",
        "FileHandle_Tests.swift",
        "Stream_Tests.swift"
      ],
      "target_dependencies" : [
        "SwiftShell"
      ],
      "type" : "test"
    },
    {
      "c99name" : "GeneralTests",
      "module_type" : "SwiftTarget",
      "name" : "GeneralTests",
      "path" : "Tests/GeneralTests",
      "sources" : [
        "Array_Tests.swift"
      ],
      "target_dependencies" : [
        "SwiftShell"
      ],
      "type" : "test"
    }
  ],
  "tools_version" : "5.0"
}
Done.