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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 swift-scru128 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/scru128/swift-scru128.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/scru128/swift-scru128
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at d82c68f v3.0.2 Released
Cloned https://github.com/scru128/swift-scru128.git
Revision (git rev-parse @):
d82c68fadb6cdd678682ae963299605ae48590a4
SPI manifest file found: $workDir/.spi.yml
SUCCESS checkout https://github.com/scru128/swift-scru128.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/scru128/swift-scru128.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...
[0/2] Write sources
[1/2] Write swift-version-6F35C1178C84523A.txt
[3/6] Compiling Scru128 Scru128Id.swift
[4/6] Compiling Scru128 Scru128.swift
/Users/admin/builder/spi-builder-workspace/Sources/Scru128/Scru128.swift:10:13: warning: let 'globalGenerator' is not concurrency-safe because non-'Sendable' type 'Scru128Generator<SystemRandomNumberGenerator>' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | let maxCounterLo: UInt32 = 0xff_ffff
 9 |
10 | private let globalGenerator = Scru128Generator()
   |             |- warning: let 'globalGenerator' is not concurrency-safe because non-'Sendable' type 'Scru128Generator<SystemRandomNumberGenerator>' may have shared mutable state; this is an error in the Swift 6 language mode
   |             |- note: annotate 'globalGenerator' 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
11 |
12 | /// Generates a new SCRU128 ID object using the global generator.
/Users/admin/builder/spi-builder-workspace/Sources/Scru128/Scru128Generator.swift:27:14: note: generic class 'Scru128Generator' does not conform to the 'Sendable' protocol
 25 | ///
 26 | /// The `Core` functions offer low-level thread-unsafe primitives to customize the behavior.
 27 | public class Scru128Generator<R: RandomNumberGenerator> {
    |              `- note: generic class 'Scru128Generator' does not conform to the 'Sendable' protocol
 28 |   private var timestamp: UInt64 = 0
 29 |   private var counterHi: UInt32 = 0
[5/6] Emitting module Scru128
/Users/admin/builder/spi-builder-workspace/Sources/Scru128/Scru128.swift:10:13: warning: let 'globalGenerator' is not concurrency-safe because non-'Sendable' type 'Scru128Generator<SystemRandomNumberGenerator>' may have shared mutable state; this is an error in the Swift 6 language mode
 8 | let maxCounterLo: UInt32 = 0xff_ffff
 9 |
10 | private let globalGenerator = Scru128Generator()
   |             |- warning: let 'globalGenerator' is not concurrency-safe because non-'Sendable' type 'Scru128Generator<SystemRandomNumberGenerator>' may have shared mutable state; this is an error in the Swift 6 language mode
   |             |- note: annotate 'globalGenerator' 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
11 |
12 | /// Generates a new SCRU128 ID object using the global generator.
/Users/admin/builder/spi-builder-workspace/Sources/Scru128/Scru128Generator.swift:27:14: note: generic class 'Scru128Generator' does not conform to the 'Sendable' protocol
 25 | ///
 26 | /// The `Core` functions offer low-level thread-unsafe primitives to customize the behavior.
 27 | public class Scru128Generator<R: RandomNumberGenerator> {
    |              `- note: generic class 'Scru128Generator' does not conform to the 'Sendable' protocol
 28 |   private var timestamp: UInt64 = 0
 29 |   private var counterHi: UInt32 = 0
[6/6] Compiling Scru128 Scru128Generator.swift
Build complete! (16.53s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "swift-scru128",
  "name" : "swift-scru128",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Scru128",
      "targets" : [
        "Scru128"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "Scru128Tests",
      "module_type" : "SwiftTarget",
      "name" : "Scru128Tests",
      "path" : "Tests/Scru128Tests",
      "sources" : [
        "Scru128GeneratorTests.swift",
        "Scru128IdTests.swift",
        "Scru128Tests.swift"
      ],
      "target_dependencies" : [
        "Scru128"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Scru128",
      "module_type" : "SwiftTarget",
      "name" : "Scru128",
      "path" : "Sources/Scru128",
      "product_memberships" : [
        "Scru128"
      ],
      "sources" : [
        "Scru128.swift",
        "Scru128Generator.swift",
        "Scru128Id.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.6"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.