error: unnecessary `if let` since only the `Some` variant of the iterator element is used
  --> $DIR/manual_flatten.rs:6:5
   |
LL | /     for n in x {
LL | |         if let Some(n) = n {
LL | |             println!("{}", n);
LL | |         }
LL | |     }
   | |_____^ help: try: `x.into_iter().flatten()`
   |
   = note: `-D clippy::manual-flatten` implied by `-D warnings`

error: unnecessary `if let` since only the `Ok` variant of the iterator element is used
  --> $DIR/manual_flatten.rs:14:5
   |
LL | /     for n in y.clone() {
LL | |         if let Ok(n) = n {
LL | |             println!("{}", n);
LL | |         };
LL | |     }
   | |_____^ help: try: `y.clone().into_iter().flatten()`

error: unnecessary `if let` since only the `Ok` variant of the iterator element is used
  --> $DIR/manual_flatten.rs:21:5
   |
LL | /     for n in &y {
LL | |         if let Ok(n) = n {
LL | |             println!("{}", n);
LL | |         }
LL | |     }
   | |_____^ help: try: `y.iter().flatten()`

error: unnecessary `if let` since only the `Some` variant of the iterator element is used
  --> $DIR/manual_flatten.rs:30:5
   |
LL | /     for n in z {
LL | |         if let Some(n) = n {
LL | |             println!("{}", n);
LL | |         }
LL | |     }
   | |_____^ help: try: `z.flatten()`

error: aborting due to 4 previous errors