mod_execut.rs

mod user {
  pub mod hourse {

    fn print_room() {
      print!("limpando...");
    }
    
    pub mod room {
      pub fn clear() {
        super::print_room();
      }
    }
  }

  mod car {}
}

use crate::user::hourse;

fn main() {
  hourse::room::clear()
}

/*
  limpando...
*/