Read binary file to u8 vec
let bytes = std::fs::read("path").unwrap();Convert bytes to string
str::from_utf8(&bytes[1073..1079]).unwrap();List files in dir
let paths = fs::read_dir("./").unwrap();Measure time
use std::time::Instant;
let now = Instant::now();
let elapsed = now.elapsed();
println!("Elapsed: {:.2?}", elapsed);