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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 Mu, reference main (1a3bc6), with Swift 6.1 for macOS (SPM) on 26 Apr 2025 22:09:06 UTC.

Swift 6 data race errors: 0

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Nirma/Mu.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Nirma/Mu
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 1a3bc68 Merge pull request #1 from Nirma/expand_HTTP_Methods
Cloned https://github.com/Nirma/Mu.git
Revision (git rev-parse @):
1a3bc684c3cb830c85aad62a398ca1c0f9ab855e
SUCCESS checkout https://github.com/Nirma/Mu.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": "mu",
      "name": "Mu",
      "url": "https://github.com/Nirma/Mu.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Mu",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/Nirma/Mu.git
[1/40] Fetching mu
Fetched https://github.com/Nirma/Mu.git from cache (0.58s)
Creating working copy for https://github.com/Nirma/Mu.git
Working copy of https://github.com/Nirma/Mu.git resolved at main (1a3bc68)
warning: '.resolve-product-dependencies': dependency 'mu' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/Nirma/Mu.git
https://github.com/Nirma/Mu.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Mu",
  "name" : "Mu",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "macos",
      "version" : "12.0"
    },
    {
      "name" : "watchos",
      "version" : "8.0"
    },
    {
      "name" : "tvos",
      "version" : "15.0"
    }
  ],
  "products" : [
    {
      "name" : "Mu",
      "targets" : [
        "Mu"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MuTests",
      "module_type" : "SwiftTarget",
      "name" : "MuTests",
      "path" : "Tests/MuTests",
      "sources" : [
        "HTTPMethodTests.swift",
        "SchemeTests.swift"
      ],
      "target_dependencies" : [
        "Mu"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Mu",
      "module_type" : "SwiftTarget",
      "name" : "Mu",
      "path" : "Sources/Mu",
      "product_memberships" : [
        "Mu"
      ],
      "sources" : [
        "AbstractDecoder.swift",
        "AbstractEncoder.swift",
        "HTTPBody.swift",
        "HTTPMethod.swift",
        "HTTPRequest.swift",
        "HTTPRequester.swift",
        "JSONDecoder+AbstractDecoder.swift",
        "JSONEncoder+AbstractEncoder.swift",
        "Request.swift",
        "RequestError.swift",
        "Requester.swift",
        "Response.swift",
        "Scheme.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/15] Compiling Mu Response.swift
[4/15] Compiling Mu Requester.swift
[5/16] Compiling Mu RequestError.swift
[6/16] Compiling Mu JSONDecoder+AbstractDecoder.swift
[7/16] Compiling Mu HTTPRequest.swift
[8/16] Compiling Mu HTTPRequester.swift
[9/16] Compiling Mu Request.swift
[10/16] Compiling Mu HTTPBody.swift
[11/16] Compiling Mu HTTPMethod.swift
[12/16] Compiling Mu AbstractDecoder.swift
[13/16] Compiling Mu AbstractEncoder.swift
[14/16] Compiling Mu JSONEncoder+AbstractEncoder.swift
[15/16] Emitting module Mu
[16/16] Compiling Mu Scheme.swift
Build complete! (5.97s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Mu",
  "name" : "Mu",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "macos",
      "version" : "12.0"
    },
    {
      "name" : "watchos",
      "version" : "8.0"
    },
    {
      "name" : "tvos",
      "version" : "15.0"
    }
  ],
  "products" : [
    {
      "name" : "Mu",
      "targets" : [
        "Mu"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MuTests",
      "module_type" : "SwiftTarget",
      "name" : "MuTests",
      "path" : "Tests/MuTests",
      "sources" : [
        "HTTPMethodTests.swift",
        "SchemeTests.swift"
      ],
      "target_dependencies" : [
        "Mu"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Mu",
      "module_type" : "SwiftTarget",
      "name" : "Mu",
      "path" : "Sources/Mu",
      "product_memberships" : [
        "Mu"
      ],
      "sources" : [
        "AbstractDecoder.swift",
        "AbstractEncoder.swift",
        "HTTPBody.swift",
        "HTTPMethod.swift",
        "HTTPRequest.swift",
        "HTTPRequester.swift",
        "JSONDecoder+AbstractDecoder.swift",
        "JSONEncoder+AbstractEncoder.swift",
        "Request.swift",
        "RequestError.swift",
        "Requester.swift",
        "Response.swift",
        "Scheme.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
Done.