warning: unreachable expression
  --> $DIR/unreachable-try-pattern.rs:19:36
   |
LL |     let y = (match x { Ok(n) => Ok(n as u32), Err(e) => Err(e) })?;
   |                                    -^^^^^^^
   |                                    |
   |                                    unreachable expression
   |                                    any code following this expression is unreachable
   |
note: the lint level is defined here
  --> $DIR/unreachable-try-pattern.rs:3:9
   |
LL | #![warn(unreachable_code)]
   |         ^^^^^^^^^^^^^^^^

warning: unreachable pattern
  --> $DIR/unreachable-try-pattern.rs:19:24
   |
LL |     let y = (match x { Ok(n) => Ok(n as u32), Err(e) => Err(e) })?;
   |                        ^^^^^-----------------
   |                        |
   |                        matches no values because `!` is uninhabited
   |                        help: remove the match arm
   |
   = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
note: the lint level is defined here
  --> $DIR/unreachable-try-pattern.rs:4:9
   |
LL | #![warn(unreachable_patterns)]
   |         ^^^^^^^^^^^^^^^^^^^^

warning: unreachable pattern
  --> $DIR/unreachable-try-pattern.rs:30:40
   |
LL |     let y = (match x { Ok(n) => Ok(n), Err(e) => Err(e) })?;
   |                                        ^^^^^^----------
   |                                        |
   |                                        matches no values because `Void` is uninhabited
   |                                        help: remove the match arm
   |
   = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types

warning: 3 warnings emitted