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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 Turf, reference main (84db58), with Swift 6.1 for macOS (SPM) on 30 Apr 2025 03:04:12 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/mapbox/turf-swift.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/mapbox/turf-swift
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 84db589 Merge pull request #258 from mapbox/feature/strip-binaries
Cloned https://github.com/mapbox/turf-swift.git
Revision (git rev-parse @):
84db5899af1beaa506aafcb006fd7759e7d5647d
SUCCESS checkout https://github.com/mapbox/turf-swift.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/mapbox/turf-swift.git
https://github.com/mapbox/turf-swift.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Turf",
  "name" : "Turf",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.13"
    },
    {
      "name" : "ios",
      "version" : "11.0"
    },
    {
      "name" : "watchos",
      "version" : "4.0"
    },
    {
      "name" : "tvos",
      "version" : "11.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "Turf",
      "targets" : [
        "Turf"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "Turf",
      "module_type" : "BinaryTarget",
      "name" : "Turf",
      "path" : "remote/archive/Turf.xcframework.zip",
      "product_memberships" : [
        "Turf"
      ],
      "sources" : [
      ],
      "type" : "binary"
    }
  ],
  "tools_version" : "5.7"
}
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
Downloading binary artifact https://github.com/mapbox/turf-swift/releases/download/v4.0.0/Turf.xcframework.zip
[16384/17668925] Downloading https://github.com/mapbox/turf-swift/releases/download/v4.0.0/Turf.xcframework.zip
Downloaded https://github.com/mapbox/turf-swift/releases/download/v4.0.0/Turf.xcframework.zip (2.28s)
error: The package does not contain a buildable target.
Add at least one `.target` or `.executableTarget` to your `Package.swift`.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
error: The package does not contain a buildable target.
Add at least one `.target` or `.executableTarget` to your `Package.swift`.
BUILD FAILURE 6.1 macosSpm