cargo_embargo.json

{
  "min_sdk_version": "29",
  "run_cargo": false,
  "variants": [
    {
      "features": [
        "once",
        "mutex",
        "spin_mutex",
        "std"
      ],
      "tests": true
    },
    {
      "features": [
        "once",
        "mutex",
        "spin_mutex"
      ],
      "module_name_overrides": {
        "libspin": "libspin_nostd"
      },
      "package": {
        "spin": {
          "force_rlib": true,
          "host_supported": false,
          "no_std": true
        }
      }
    }
  ]
}