impl game over

secert-hitler/src/model/state/room.rs

@@ -1,6 +1,8 @@
 use super::event;
 
-pub trait Room {
+use std::fmt;
+
+pub trait Room: fmt::Debug {
    fn rollback(&mut self, since: String);
    fn sync(&mut self) -> Vec<event::Event>;
    fn send(&mut self, message: String) -> Result<String, &str>;