error: redundant pattern matching, consider using `is_ok()`
 --> $DIR/if_let_redundant_pattern_matching.rs:9:12
  |
9 |     if let Ok(_) = Ok::<i32, i32>(42) {}
  |            ^^^^^
  |
  = note: #[deny(if_let_redundant_pattern_matching)] implied by #[deny(clippy)]
note: lint level defined here
 --> $DIR/if_let_redundant_pattern_matching.rs:4:9
  |
4 | #![deny(clippy)]
  |         ^^^^^^
help: try this
  |     if Ok::<i32, i32>(42).is_ok() {}

error: redundant pattern matching, consider using `is_err()`
  --> $DIR/if_let_redundant_pattern_matching.rs:14:12
   |
14 |     if let Err(_) = Err::<i32, i32>(42) {
   |            ^^^^^^
   |
   = note: #[deny(if_let_redundant_pattern_matching)] implied by #[deny(clippy)]
help: try this
   |     if Err::<i32, i32>(42).is_err() {

error: redundant pattern matching, consider using `is_none()`
  --> $DIR/if_let_redundant_pattern_matching.rs:20:12
   |
20 |     if let None = None::<()> {
   |            ^^^^
   |
   = note: #[deny(if_let_redundant_pattern_matching)] implied by #[deny(clippy)]
help: try this
   |     if None::<()>.is_none() {

error: redundant pattern matching, consider using `is_some()`
  --> $DIR/if_let_redundant_pattern_matching.rs:26:12
   |
26 |     if let Some(_) = Some(42) {
   |            ^^^^^^^
   |
   = note: #[deny(if_let_redundant_pattern_matching)] implied by #[deny(clippy)]
help: try this
   |     if Some(42).is_some() {

error: aborting due to 4 previous errors