pub fn default_cargo_options() -> CargoOptions<'static> {
        let mut options = CargoOptions::new();
        options
            .set_include_dev(true)
            .set_platform(PlatformSpec::current().expect("current platform is unknown"));
        options
    }
Returns the default Cargo options used by the determinator.

These are the same as the defaults returned by [`CargoOptions::new`](CargoOptions::new),
except:
* dev-dependencies are enabled
* the host and target platforms are set to the current platform
tools/determinator/src/determinator.rs