Glium 0.23.0 bug: thread 'main' panicked at 'already mutably borrowed: BorrowError'

error.rs

use glutin::event_loop::{ControlFlow, EventLoop};
use glutin::window::WindowBuilder;

fn main() {
    let el = EventLoop::new();
    let wb = WindowBuilder::new();
    let windowed_context = glutin::ContextBuilder::new()
        .build_windowed(wb, &el)
        .unwrap();

    let windowed_context = unsafe { windowed_context.make_current().unwrap() };

    el.run(move |_, _, control_flow| {
        windowed_context.window().set_maximized(true);
        *control_flow = ControlFlow::Exit;
    })
}