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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 CoreCLI, reference master (104c93), with Swift 6.0 for macOS (SPM) on 1 Nov 2024 04:55:41 UTC.

Swift 6 data race errors: 1

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/toshi0383/CoreCLI.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/toshi0383/CoreCLI
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 104c93f Fix default ArgumentParser
Cloned https://github.com/toshi0383/CoreCLI.git
Revision (git rev-parse @):
104c93ffb603b892e2665cac68fe9b4c5b5a7376
SUCCESS checkout https://github.com/toshi0383/CoreCLI.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": "corecli",
      "name": "CoreCLI",
      "url": "https://github.com/toshi0383/CoreCLI.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/CoreCLI",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/toshi0383/CoreCLI.git
[1/68] Fetching corecli
Fetched https://github.com/toshi0383/CoreCLI.git from cache (0.59s)
Creating working copy for https://github.com/toshi0383/CoreCLI.git
Working copy of https://github.com/toshi0383/CoreCLI.git resolved at master (104c93f)
warning: '.resolve-product-dependencies': dependency 'corecli' 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/toshi0383/CoreCLI.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
[3/7] Compiling CoreCLI ArgumentParser.swift
[4/7] Compiling CoreCLI CommandType.swift
/Users/admin/builder/spi-builder-workspace/Sources/CoreCLI/CommandType.swift:26:17: warning: stored property 'message' of 'Sendable'-conforming struct 'CommandError' has non-sendable type 'any CustomStringConvertible'; this is an error in the Swift 6 language mode
24 |
25 | public struct CommandError: Error, CustomStringConvertible {
26 |     private let message: CustomStringConvertible
   |                 `- warning: stored property 'message' of 'Sendable'-conforming struct 'CommandError' has non-sendable type 'any CustomStringConvertible'; this is an error in the Swift 6 language mode
27 |     public init(_ message: CustomStringConvertible) {
28 |         self.message = message
Swift.CustomStringConvertible:1:17: note: protocol 'CustomStringConvertible' does not conform to the 'Sendable' protocol
1 | public protocol CustomStringConvertible {
  |                 `- note: protocol 'CustomStringConvertible' does not conform to the 'Sendable' protocol
2 |     var description: String { get }
3 | }
[5/7] Emitting module CoreCLI
/Users/admin/builder/spi-builder-workspace/Sources/CoreCLI/CommandType.swift:26:17: warning: stored property 'message' of 'Sendable'-conforming struct 'CommandError' has non-sendable type 'any CustomStringConvertible'; this is an error in the Swift 6 language mode
24 |
25 | public struct CommandError: Error, CustomStringConvertible {
26 |     private let message: CustomStringConvertible
   |                 `- warning: stored property 'message' of 'Sendable'-conforming struct 'CommandError' has non-sendable type 'any CustomStringConvertible'; this is an error in the Swift 6 language mode
27 |     public init(_ message: CustomStringConvertible) {
28 |         self.message = message
Swift.CustomStringConvertible:1:17: note: protocol 'CustomStringConvertible' does not conform to the 'Sendable' protocol
1 | public protocol CustomStringConvertible {
  |                 `- note: protocol 'CustomStringConvertible' does not conform to the 'Sendable' protocol
2 |     var description: String { get }
3 | }
[6/7] Compiling CoreCLI CommandRunner.swift
[7/7] Compiling CoreCLI AutoArgumentsDecodable.swift
Build complete! (6.58s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "CoreCLI",
  "name" : "CoreCLI",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "CoreCLI",
      "targets" : [
        "CoreCLI"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CoreCLITests",
      "module_type" : "SwiftTarget",
      "name" : "CoreCLITests",
      "path" : "Tests/CoreCLITests",
      "sources" : [
        "CoreCLITests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "CoreCLI"
      ],
      "type" : "test"
    },
    {
      "c99name" : "CoreCLI",
      "module_type" : "SwiftTarget",
      "name" : "CoreCLI",
      "path" : "Sources/CoreCLI",
      "product_memberships" : [
        "CoreCLI"
      ],
      "sources" : [
        "ArgumentParser.swift",
        "AutoArgumentsDecodable.swift",
        "CommandRunner.swift",
        "CommandType.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
Done.