#![allow(dead_code, deprecated, unused_variables, unused_mut)]
fn main() {
    let results = [Ok(1), Err("nope"), Ok(3), Err("bad")];
    let result: Result<Vec<_>, &str> = results.into_iter().collect();
    assert_eq!(Err("nope"), result);
    let results = [Ok(1), Ok(3)];
    let result: Result<Vec<_>, &str> = results.into_iter().collect();
    assert_eq!(Ok(vec![1, 3]), result);
}