remove unwrap

src/ship/ship.rs

@@ -267,7 +267,9 @@ impl<EG: EntityGateway> ServerState for ShipServerState<EG> {
                 }
             },
             RecvShipPacket::RoomPasswordReq(room_password_req) => {
-                if room_password_req.password == self.rooms[room_password_req.item as usize].as_ref().unwrap().password {
+                if room_password_req.password == self.rooms[room_password_req.item as usize].as_ref()
+                    .ok_or(ShipError::InvalidRoom(room_password_req.item))?
+                    .password {
                     let menuselect = MenuSelect {
                         menu: room_password_req.menu,
                         item: room_password_req.item,