use log2::*;
fn main() {
log2::stdout()
.level("trace")
.module(false)
.module_with_line(true)
.module_filter(|m| !m.is_empty())
.start();
trace!("send order request to server");
debug!("receive order response");
info!("order was executed");
warn!("network speed is slow");
error!("network connection was broken");
}