Percentage Bar never changes

[AutomatedTester]

If you call the program below it finishes with the bar at 0%. Compile the code below and run it

    extern crate argparse;
    extern crate rustbar;

    use argparse::{ArgumentParser, List};
    use rustbar::rustbars::{ProgressBar, PercentageProgressBar};
    use std::thread::sleep_ms;

    fn main() {
        let task;
        let mut tasks_vector: Vec<String> = Vec::new();
        {

            let mut parser = ArgumentParser::new();
            parser.set_description("A CLI tool to do Pomodoro tasks");

            parser.refer(&mut tasks_vector)
                  .add_argument("task", List,
                                "Task that you want to do");

            parser.parse_args_or_exit();

        }
        task = tasks_vector.join(" ");
        let mut progress = PercentageProgressBar::new();
        for idx in 1..25 {
            progress.set_value((idx/25)*100);
            progress.set_msg(&task[..]);
            progress.render();
            sleep_ms(1000);
        }
    }

once run it looks like

dburns in ~/development/learn on master ● λ target/debug/./learn task task
task task0%%                                                                                                                                          dburns in ~/development/learn on master ● λ