Rust read a text file line by line with BufReader

use std::fs::File;
use std::io::{self, BufRead, BufReader};
use std::path::Path;

fn read_lines(path: impl AsRef<Path>) -> io::Result<Vec<String>> {
    let file = File::open(path)?;
    let reader = BufReader::new(file);
    let mut lines = Vec::new();
    for line in reader.lines() {
        lines.push(line?);
    }
    Ok(lines)
}

fn main() -> io::Result<()> {
    for (n, line) in read_lines("notes.txt")?.iter().enumerate() {
        println!("{}: {}", n + 1, line);
    }
    Ok(())
}