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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 Parser, reference main (e8951c), with Swift 6.0 for macOS (SPM) on 1 Nov 2024 10:04:11 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/finestructure/Parser.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/finestructure/Parser
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at e8951ca Add arena sample code
Cloned https://github.com/finestructure/Parser.git
Revision (git rev-parse @):
e8951ca4920d060d8717a0e0f3693d5d0769cc3d
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/finestructure/Parser.git at main
========================================
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": "parser",
      "name": "Parser",
      "url": "https://github.com/finestructure/Parser.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Parser",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/finestructure/Parser.git
[1/155] Fetching parser
Fetched https://github.com/finestructure/Parser.git from cache (0.73s)
Creating working copy for https://github.com/finestructure/Parser.git
Working copy of https://github.com/finestructure/Parser.git resolved at main (e8951ca)
warning: '.resolve-product-dependencies': dependency 'parser' 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/finestructure/Parser.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] Emitting module Parser
/Users/admin/builder/spi-builder-workspace/Sources/Parser/Parser.swift:148:31: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 13 |
 14 |
 15 | public struct Parser<A> {
    |                      `- note: 'A' previously declared here
 16 |     public let run: (inout Substring) -> A?
 17 |
    :
146 | extension Parser {
147 |
148 |     public static func always<A>(_ a: A) -> Parser<A> {
    |                               `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
149 |         return Parser<A> { _ in a }
150 |     }
[4/7] Compiling Parser Parser+zip.swift
[5/7] Compiling Parser Parser.swift
/Users/admin/builder/spi-builder-workspace/Sources/Parser/Parser.swift:148:31: warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 13 |
 14 |
 15 | public struct Parser<A> {
    |                      `- note: 'A' previously declared here
 16 |     public let run: (inout Substring) -> A?
 17 |
    :
146 | extension Parser {
147 |
148 |     public static func always<A>(_ a: A) -> Parser<A> {
    |                               `- warning: generic parameter 'A' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
149 |         return Parser<A> { _ in a }
150 |     }
[6/7] Compiling Parser CharacterSet+ext.swift
[7/7] Compiling Parser Match.swift
Build complete! (6.10s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Parser",
  "name" : "Parser",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Parser",
      "targets" : [
        "Parser"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ParserTests",
      "module_type" : "SwiftTarget",
      "name" : "ParserTests",
      "path" : "Tests/ParserTests",
      "sources" : [
        "ParserTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "Parser"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Parser",
      "module_type" : "SwiftTarget",
      "name" : "Parser",
      "path" : "Sources/Parser",
      "product_memberships" : [
        "Parser"
      ],
      "sources" : [
        "CharacterSet+ext.swift",
        "Match.swift",
        "Parser+zip.swift",
        "Parser.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Done.