error[E0382]: borrow of moved value: `order`
  --> src\order_book\mod.rs:81:49
   |
79 |     fn match_market_order(&mut self, order: &mut MarketOrder) -> Result<Trades, Box<dyn Error>> {
   |                                      ----- move occurs because `order` has type `&mut order::MarketOrder`, which does not implement the `Copy` trait
80 |         let matches = self.get_possible_matches(order);
   |                                                 ----- value moved here
81 |         assert!(matches.get_matched_amount() <= order.get_amount());
   |                                                 ^^^^^ value borrowed here after move