You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: cmd.rs
    path of file: ./repos/crates-io-cli/src/scmds/recents
    
    the code of the file until where you have to start completion: use super::error::Error;
use crate::args::OutputKind;
use std::{
    env,
    io::{self, Write},
    ops::Add,
    path::PathBuf,
    time::Duration,
};

use crates_index_diff::Index;
use parking_lot::{Condvar, Mutex};
use prettytable::{format, Table};

fn show_changes(repo_path: PathBuf, output_kind: OutputKind) -> Result<(), Error> {
    std::fs::create_dir_all(&repo_path).map_
    
fn message_after_timeout(msg: String, d: Duration) {
    std::thread::spawn({
        move || {
            let lock = Mutex::new(());
            let cvar = Condvar::new();
            let mut something_to_wait_on = lock.lock();
            if cvar
                .wait_until(&mut something_to_wait_on, std::time::Instant::now().add(d))
                .timed_out()
            {
                writeln!(std::io::stderr(), "{}", msg).ok();
            }
        }
    });
}