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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

Failed to build libsass, reference 1.0.0 (9d48a0), with Swift 6.0 for macOS (SPM) on 30 Nov 2024 11:30:01 UTC.

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 -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: 4.58.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/robinwalterfit/Swift-libsass.git
Reference: 1.0.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/robinwalterfit/Swift-libsass
 * tag               1.0.0      -> FETCH_HEAD
HEAD is now at 9d48a04 Update README.md with LICENSE
Cloned https://github.com/robinwalterfit/Swift-libsass.git
Revision (git rev-parse @):
9d48a04eda5a98d7a934ce40249a7275d11f3236
SUCCESS checkout https://github.com/robinwalterfit/Swift-libsass.git at 1.0.0
========================================
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": "swift-libsass",
      "name": "libsass",
      "url": "https://github.com/robinwalterfit/Swift-libsass.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Swift-libsass",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/robinwalterfit/Swift-libsass.git
[1/17] Fetching swift-libsass
Fetched https://github.com/robinwalterfit/Swift-libsass.git from cache (0.55s)
Creating working copy for https://github.com/robinwalterfit/Swift-libsass.git
Working copy of https://github.com/robinwalterfit/Swift-libsass.git resolved at 1.0.0 (9d48a04)
warning: 'swift-libsass': ignoring declared target(s) 'libsass' in the system package
warning: '.resolve-product-dependencies': dependency 'swift-libsass' 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/robinwalterfit/Swift-libsass.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "libsass",
  "name" : "libsass",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "libsass",
      "targets" : [
        "libsass"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "libsass",
      "module_type" : "SystemLibraryTarget",
      "name" : "libsass",
      "path" : ".",
      "product_memberships" : [
        "libsass"
      ],
      "sources" : [
      ],
      "type" : "system-target"
    }
  ],
  "tools_version" : "4.0"
}
warning: 'spi-builder-workspace': ignoring declared target(s) 'libsass' in the system package
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 -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures
warning: 'spi-builder-workspace': ignoring declared target(s) 'libsass' in the system package
error: The package does not contain a buildable target.
Add at least one `.target` or `.executableTarget` to your `Package.swift`.
BUILD FAILURE 6.0 macosSpm