A logging implementation in Rust. ```rust
extern crate log;
extern crate chrono; extern crate mlog;
use mlog::Logger;
fn main() { Logger::new() .formodule("mlogexample::*", log::LevelFilter::Off) .format(|record| { format!( "[{}] {}: {}", chrono::Local::now() .format("%H:%M:%S"), record.level(), record.args() ) }) .setdefaultlevel(log::LevelFilter::Info) .ready() .unwrap();
info!("hello, world!");
} ```