Text rendering panics in newest version (0.115.0)

[kaikalii]

With version 0.115.0, this following code panics:

use piston_window::*;

fn main() {
    let mut window: PistonWindow = WindowSettings::new("test", [800; 2]).build().unwrap();
    let mut glyphs = window.load_font("firacode.ttf").unwrap();
    while let Some(event) = window.next() {
        window.draw_2d(&event, |Context { transform, .. }, g, device| {
            clear([0.0, 0.0, 0.0, 1.0], g);
            text(
                [1.0; 4],
                80,
                "Hellow World!",
                &mut glyphs,
                transform.trans(20.0, 100.0),
                g,
            )
            .unwrap();
            glyphs.factory.encoder.flush(device);
        });
    }
}

Looking at the backtrace, the actual panic originates from rusttype. Not sure if this is a problem with piston, rusttype, or the font I am using, but this font did not cause problems in previous versions.