use std::error::Error; use std::io; use std::process; fn main() { if let Err(err) = run() { println!("{}", err); process::exit(1); } } fn run() -> Result<(), Box> { let mut rdr = csv::Reader::from_reader(io::stdin()); for result in rdr.records() { // This is effectively the same code as our `match` in the // previous example. In other words, `?` is syntactic sugar. let record = result?; println!("{:?}", record); } Ok(()) }