Read Lines in a File Rust

read-lines.rs

  let mut items: Vec<usize> = include_str!("../input.txt")
        .lines()
        .map(|i| i.parse().unwrap())
        .collect();
    
    
 // Or
    
 fn read_ints(path: &str) -> Vec<i32> {
  let mut out: Vec<i32> = Vec::new();
  let lines = util::read_lines(path).unwrap();

  for line in lines {
    let num = line.unwrap().parse::<i32>().unwrap();
    out.push(num);
  }

  out
}