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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 Zip, reference 2.1.2 (67fa55), with Swift 6.0 for macOS (SPM) on 2 Nov 2024 06:21:15 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/marmelroy/Zip.git
Reference: 2.1.2
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/marmelroy/Zip
 * tag               2.1.2      -> FETCH_HEAD
HEAD is now at 67fa558 Release 2.1.2
Cloned https://github.com/marmelroy/Zip.git
Revision (git rev-parse @):
67fa55813b9e7b3b9acee9c0ae501def28746d76
SUCCESS checkout https://github.com/marmelroy/Zip.git at 2.1.2
========================================
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": "zip",
      "name": "Zip",
      "url": "https://github.com/marmelroy/Zip.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Zip",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/marmelroy/Zip.git
[1/1972] Fetching zip
Fetched https://github.com/marmelroy/Zip.git from cache (1.30s)
Creating working copy for https://github.com/marmelroy/Zip.git
Working copy of https://github.com/marmelroy/Zip.git resolved at 2.1.2 (67fa558)
warning: '.resolve-product-dependencies': dependency 'zip' 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/marmelroy/Zip.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...
[0/5] Write sources
[1/5] Write swift-version--7754E27361AE5C74.txt
[2/5] Compiling Minizip ioapi.c
[3/5] Compiling Minizip zip.c
[4/5] Compiling Minizip unzip.c
[6/9] Compiling Zip ZipUtilities.swift
[7/9] Compiling Zip QuickZip.swift
[8/9] Emitting module Zip
/Users/admin/builder/spi-builder-workspace/Zip/Zip.swift:71:25: warning: static property 'customFileExtensions' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 69 |      Set of vaild file extensions
 70 |      */
 71 |     internal static var customFileExtensions: Set<String> = []
    |                         |- warning: static property 'customFileExtensions' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                         |- note: convert 'customFileExtensions' to a 'let' constant to make 'Sendable' shared state immutable
    |                         |- note: annotate 'customFileExtensions' 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
 72 |
 73 |     // MARK: Lifecycle
[9/9] Compiling Zip Zip.swift
/Users/admin/builder/spi-builder-workspace/Zip/Zip.swift:71:25: warning: static property 'customFileExtensions' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 69 |      Set of vaild file extensions
 70 |      */
 71 |     internal static var customFileExtensions: Set<String> = []
    |                         |- warning: static property 'customFileExtensions' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                         |- note: convert 'customFileExtensions' to a 'let' constant to make 'Sendable' shared state immutable
    |                         |- note: annotate 'customFileExtensions' 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
 72 |
 73 |     // MARK: Lifecycle
Build complete! (7.03s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Zip",
  "name" : "Zip",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Zip",
      "targets" : [
        "Zip"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ZipTests",
      "module_type" : "SwiftTarget",
      "name" : "ZipTests",
      "path" : "ZipTests",
      "sources" : [
        "XCTestManifests.swift",
        "ZipTests.swift"
      ],
      "target_dependencies" : [
        "Zip"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Zip",
      "module_type" : "SwiftTarget",
      "name" : "Zip",
      "path" : "Zip",
      "product_memberships" : [
        "Zip"
      ],
      "sources" : [
        "QuickZip.swift",
        "Zip.swift",
        "ZipUtilities.swift"
      ],
      "target_dependencies" : [
        "Minizip"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Minizip",
      "module_type" : "ClangTarget",
      "name" : "Minizip",
      "path" : "Zip/minizip",
      "product_memberships" : [
        "Zip"
      ],
      "sources" : [
        "ioapi.c",
        "unzip.c",
        "zip.c"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Done.