1// run-rustfix
2
3#![allow(unused_imports, clippy::needless_return)]
4#![warn(clippy::flat_map_identity)]
5
6use std::convert;
7
8fn main() {
9    let iterator = [[0, 1], [2, 3], [4, 5]].iter();
10    let _ = iterator.flatten();
11
12    let iterator = [[0, 1], [2, 3], [4, 5]].iter();
13    let _ = iterator.flatten();
14
15    let iterator = [[0, 1], [2, 3], [4, 5]].iter();
16    let _ = iterator.flatten();
17}
18