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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 Script.swift with Swift 6.0 for macOS (SPM).

Swift 6 data race errors: 1

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.40.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/KS1019/Script.swift.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/KS1019/Script.swift
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 92fa44d Fixes renaming (#29)
Cloned https://github.com/KS1019/Script.swift.git
Revision (git rev-parse @):
92fa44d2de25aed6cea98b4183a0eedfdf0e0bf3
SUCCESS checkout https://github.com/KS1019/Script.swift.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/KS1019/Script.swift.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/4] Write sources
[3/4] Write swift-version-6F35C1178C84523A.txt
[5/8] Compiling ShellOut ShellOut.swift
[6/8] Emitting module ShellOut
[7/8] Compiling Files Files.swift
[8/8] Emitting module Files
[9/16] Compiling Scripting Script+Files.swift
[10/16] Compiling Scripting Script+Data.swift
[11/16] Emitting module Scripting
<unknown>:0: note: a function type must be marked '@Sendable' to conform to 'Sendable'
/Users/admin/builder/spi-builder-workspace/Sources/Scripting/SystemCall.swift:3:5: warning: let '_exit' is not concurrency-safe because non-'Sendable' type '(Int32) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
 1 | #if canImport(Darwin)
 2 | import Darwin
 3 | let _exit = Darwin.exit
   |     |- warning: let '_exit' is not concurrency-safe because non-'Sendable' type '(Int32) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
   |     |- note: annotate '_exit' 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
 4 | #elseif canImport(Glibc)
 5 | import Glibc
[12/16] Compiling Scripting ExeternalCommands.swift
[13/16] Compiling Scripting Script.swift
[14/16] Compiling Scripting Script+String.swift
[15/16] Compiling Scripting Script+Comparable.swift
[16/16] Compiling Scripting SystemCall.swift
<unknown>:0: note: a function type must be marked '@Sendable' to conform to 'Sendable'
/Users/admin/builder/spi-builder-workspace/Sources/Scripting/SystemCall.swift:3:5: warning: let '_exit' is not concurrency-safe because non-'Sendable' type '(Int32) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
 1 | #if canImport(Darwin)
 2 | import Darwin
 3 | let _exit = Darwin.exit
   |     |- warning: let '_exit' is not concurrency-safe because non-'Sendable' type '(Int32) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
   |     |- note: annotate '_exit' 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
 4 | #elseif canImport(Glibc)
 5 | import Glibc
Build complete! (27.97s)
Fetching https://github.com/JohnSundell/Files
Fetching https://github.com/JohnSundell/ShellOut.git
[1/956] Fetching shellout
[957/2187] Fetching shellout, files
Fetched https://github.com/JohnSundell/ShellOut.git from cache (3.03s)
Fetched https://github.com/JohnSundell/Files from cache (3.03s)
Computing version for https://github.com/JohnSundell/Files
Computed https://github.com/JohnSundell/Files at 4.2.0 (0.72s)
Computing version for https://github.com/JohnSundell/ShellOut.git
Computed https://github.com/JohnSundell/ShellOut.git at 2.3.0 (2.72s)
Creating working copy for https://github.com/JohnSundell/Files
Working copy of https://github.com/JohnSundell/Files resolved at 4.2.0
Creating working copy for https://github.com/JohnSundell/ShellOut.git
Working copy of https://github.com/JohnSundell/ShellOut.git resolved at 2.3.0
Build complete.
{
  "dependencies" : [
    {
      "identity" : "shellout",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.0.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/JohnSundell/ShellOut.git"
    },
    {
      "identity" : "files",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "4.0.0",
            "upper_bound" : "5.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/JohnSundell/Files"
    }
  ],
  "manifest_display_name" : "Script.swift",
  "name" : "Script.swift",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Scripting",
      "targets" : [
        "Scripting"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ScriptingTests",
      "module_type" : "SwiftTarget",
      "name" : "ScriptingTests",
      "path" : "Tests/ScriptingTests",
      "resources" : [
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Tests/ScriptingTests/Fixtures/TESTING.md",
          "rule" : {
            "process" : {
            }
          }
        }
      ],
      "sources" : [
        "ScriptUnitTests.swift"
      ],
      "target_dependencies" : [
        "Scripting"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Scripting",
      "module_type" : "SwiftTarget",
      "name" : "Scripting",
      "path" : "Sources/Scripting",
      "product_dependencies" : [
        "ShellOut",
        "Files"
      ],
      "product_memberships" : [
        "Scripting"
      ],
      "sources" : [
        "ExeternalCommands.swift",
        "Script+Comparable.swift",
        "Script+Data.swift",
        "Script+Files.swift",
        "Script+String.swift",
        "Script.swift",
        "SystemCall.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.