sdl.rs

for event in self.events.poll_iter() {
    match event {
        Event::Quit { .. } => self.running = false,
        event              => self.input.update(&self.events, event)
    }
}

error[E0502]: cannot borrow `self.events` as immutable because it is also borrowed as mutable
   --> src/game_context.rs:103:58
    |
100 |         for event in self.events.poll_iter() {
    |                      ----------- mutable borrow occurs here
...
103 |                 event              => self.input.update(&self.events, event)
    |                                                          ^^^^^^^^^^^ immutable borrow occurs here
104 |             }
105 |         }
    |         - mutable borrow ends here