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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 Commandant with Swift 6.0 for Linux.

Swift 6 data race errors: 1

Build Command

bash -c docker run --rm -v "checkouts-4606859-1":/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/Carthage/Commandant.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/Carthage/Commandant
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 0a192d3 Merge pull request #156 from Carthage/module-stability
Submodule path 'Carthage/Checkouts/Nimble': checked out 'e491a6731307bb23783bf664d003be9b2fa59ab5'
Submodule path 'Carthage/Checkouts/Quick': checked out '8a10ae40b78d2360ca56638f15fe721be8529993'
Submodule path 'Carthage/Checkouts/Quick/Externals/Nimble': checked out 'e491a6731307bb23783bf664d003be9b2fa59ab5'
Submodule path 'Carthage/Checkouts/xcconfigs': checked out '4ced0ad5a971220917994a4edfa6abf9702e3818'
Submodule 'Carthage/Checkouts/Nimble' (https://github.com/Quick/Nimble.git) registered for path 'Carthage/Checkouts/Nimble'
Submodule 'Carthage/Checkouts/Quick' (https://github.com/Quick/Quick.git) registered for path 'Carthage/Checkouts/Quick'
Submodule 'Carthage/Checkouts/xcconfigs' (https://github.com/jspahrsummers/xcconfigs.git) registered for path 'Carthage/Checkouts/xcconfigs'
Cloning into '/host/spi-builder-workspace/Carthage/Checkouts/Nimble'...
Cloning into '/host/spi-builder-workspace/Carthage/Checkouts/Quick'...
Cloning into '/host/spi-builder-workspace/Carthage/Checkouts/xcconfigs'...
Submodule 'Externals/Nimble' (https://github.com/Quick/Nimble.git) registered for path 'Carthage/Checkouts/Quick/Externals/Nimble'
Cloning into '/host/spi-builder-workspace/Carthage/Checkouts/Quick/Externals/Nimble'...
Cloned https://github.com/Carthage/Commandant.git
Revision (git rev-parse @):
0a192d39714dff52b48ca88795ad6175119fc120
SUCCESS checkout https://github.com/Carthage/Commandant.git at master
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.0
Building package at path:  $workDir
https://github.com/Carthage/Commandant.git
Running build ...
bash -c docker run --rm -v "checkouts-4606859-1":/host -w "$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/mattgallagher/CwlCatchException.git
Fetching https://github.com/Quick/Quick.git
Fetching https://github.com/mattgallagher/CwlPreconditionTesting.git
Fetching https://github.com/Quick/Nimble.git
[1/439] Fetching cwlcatchexception
[440/1686] Fetching cwlcatchexception, cwlpreconditiontesting
[1687/16235] Fetching cwlcatchexception, cwlpreconditiontesting, quick
Fetched https://github.com/mattgallagher/CwlPreconditionTesting.git from cache (0.51s)
Fetched https://github.com/mattgallagher/CwlCatchException.git from cache (0.51s)
Fetched https://github.com/Quick/Quick.git from cache (0.51s)
[1/18640] Fetching nimble
Fetched https://github.com/Quick/Nimble.git from cache (1.88s)
Computing version for https://github.com/Quick/Nimble.git
Computed https://github.com/Quick/Nimble.git at 9.0.0 (0.44s)
Computing version for https://github.com/Quick/Quick.git
Computed https://github.com/Quick/Quick.git at 3.1.0 (0.45s)
Creating working copy for https://github.com/Quick/Quick.git
Working copy of https://github.com/Quick/Quick.git resolved at 3.1.0
Creating working copy for https://github.com/Quick/Nimble.git
Working copy of https://github.com/Quick/Nimble.git resolved at 9.0.0
warning: 'quick': found 1 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
    /host/spi-builder-workspace/.build/checkouts/Quick/Sources/Quick/Info.plist
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/12] Compiling Commandant OrderedSet.swift
[4/12] Compiling Commandant Result+Additions.swift
[5/13] Compiling Commandant Switch.swift
[6/13] Compiling Commandant Option.swift
[7/13] Compiling Commandant HelpCommand.swift
/host/spi-builder-workspace/Sources/Commandant/HelpCommand.swift:44:48: warning: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
42 | 				return .success(())
43 | 			} else {
44 | 				fputs("Unrecognized command: '\(verb)'\n", stderr)
   |                                                `- warning: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
45 | 			}
46 | 		}
SwiftGlibc.stderr:1:12: note: var declared here
1 | public var stderr: UnsafeMutablePointer<FILE>!
  |            `- note: var declared here
[8/13] Compiling Commandant ArgumentProtocol.swift
/host/spi-builder-workspace/Sources/Commandant/Command.swift:180:31: warning: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
178 | 			switch error {
179 | 			case let .usageError(description):
180 | 				fputs(description + "\n", stderr)
    |                               `- warning: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
181 |
182 | 			case let .commandError(error):
SwiftGlibc.stderr:1:12: note: var declared here
1 | public var stderr: UnsafeMutablePointer<FILE>!
  |            `- note: var declared here
/host/spi-builder-workspace/Sources/Commandant/Command.swift:193:78: warning: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
191 | 			}
192 |
193 | 			fputs("Unrecognized command: '\(verb)'. See `\(executableName) help`.\n", stderr)
    |                                                                              `- warning: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
194 | 			exit(EXIT_FAILURE)
195 | 		}
SwiftGlibc.stderr:1:12: note: var declared here
1 | public var stderr: UnsafeMutablePointer<FILE>!
  |            `- note: var declared here
[9/13] Compiling Commandant Command.swift
/host/spi-builder-workspace/Sources/Commandant/Command.swift:180:31: warning: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
178 | 			switch error {
179 | 			case let .usageError(description):
180 | 				fputs(description + "\n", stderr)
    |                               `- warning: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
181 |
182 | 			case let .commandError(error):
SwiftGlibc.stderr:1:12: note: var declared here
1 | public var stderr: UnsafeMutablePointer<FILE>!
  |            `- note: var declared here
/host/spi-builder-workspace/Sources/Commandant/Command.swift:193:78: warning: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
191 | 			}
192 |
193 | 			fputs("Unrecognized command: '\(verb)'. See `\(executableName) help`.\n", stderr)
    |                                                                              `- warning: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode
194 | 			exit(EXIT_FAILURE)
195 | 		}
SwiftGlibc.stderr:1:12: note: var declared here
1 | public var stderr: UnsafeMutablePointer<FILE>!
  |            `- note: var declared here
[10/13] Compiling Commandant Argument.swift
[11/13] Compiling Commandant ArgumentParser.swift
[12/13] Emitting module Commandant
/host/spi-builder-workspace/Sources/Commandant/Errors.swift:20:7: warning: associated value 'commandError' of 'Sendable'-conforming generic enum 'CommandantError' has non-sendable type 'ClientError'; this is an error in the Swift 6 language mode
 13 | /// `ClientError` should be the type of error (if any) that can occur when
 14 | /// running commands.
 15 | public enum CommandantError<ClientError>: Error {
    |                             `- note: consider making generic parameter 'ClientError' conform to the 'Sendable' protocol
 16 | 	/// An option was used incorrectly.
 17 | 	case usageError(description: String)
 18 |
 19 | 	/// An error occurred while running a command.
 20 | 	case commandError(ClientError)
    |       `- warning: associated value 'commandError' of 'Sendable'-conforming generic enum 'CommandantError' has non-sendable type 'ClientError'; this is an error in the Swift 6 language mode
 21 | }
 22 |
[13/13] Compiling Commandant Errors.swift
/host/spi-builder-workspace/Sources/Commandant/Errors.swift:20:7: warning: associated value 'commandError' of 'Sendable'-conforming generic enum 'CommandantError' has non-sendable type 'ClientError'; this is an error in the Swift 6 language mode
 13 | /// `ClientError` should be the type of error (if any) that can occur when
 14 | /// running commands.
 15 | public enum CommandantError<ClientError>: Error {
    |                             `- note: consider making generic parameter 'ClientError' conform to the 'Sendable' protocol
 16 | 	/// An option was used incorrectly.
 17 | 	case usageError(description: String)
 18 |
 19 | 	/// An error occurred while running a command.
 20 | 	case commandError(ClientError)
    |       `- warning: associated value 'commandError' of 'Sendable'-conforming generic enum 'CommandantError' has non-sendable type 'ClientError'; this is an error in the Swift 6 language mode
 21 | }
 22 |
Build complete! (13.44s)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "quick",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "3.1.0",
            "upper_bound" : "4.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Quick.git"
    },
    {
      "identity" : "nimble",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "9.0.0",
            "upper_bound" : "10.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Nimble.git"
    }
  ],
  "manifest_display_name" : "Commandant",
  "name" : "Commandant",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Commandant",
      "targets" : [
        "Commandant"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "CommandantTests",
      "module_type" : "SwiftTarget",
      "name" : "CommandantTests",
      "path" : "Tests/CommandantTests",
      "product_dependencies" : [
        "Quick",
        "Nimble"
      ],
      "sources" : [
        "CommandSpec.swift",
        "OptionSpec.swift",
        "OptionsWithEnumProtocolSpec.swift",
        "OrderedSetSpec.swift"
      ],
      "target_dependencies" : [
        "Commandant"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Commandant",
      "module_type" : "SwiftTarget",
      "name" : "Commandant",
      "path" : "Sources/Commandant",
      "product_memberships" : [
        "Commandant"
      ],
      "sources" : [
        "Argument.swift",
        "ArgumentParser.swift",
        "ArgumentProtocol.swift",
        "Command.swift",
        "Errors.swift",
        "HelpCommand.swift",
        "Option.swift",
        "OrderedSet.swift",
        "Result+Additions.swift",
        "Switch.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.