error: unexpected parentheses surrounding `match` arm pattern
  --> $DIR/recover-parens-around-match-arm-head.rs:5:9
   |
LL |         (0 if true) => {
   |         ^         ^
   |
help: remove parentheses surrounding the pattern
   |
LL -         (0 if true) => {
LL +         0 if true => {
   |

error[E0308]: mismatched types
  --> $DIR/recover-parens-around-match-arm-head.rs:11:19
   |
LL |     let _y: u32 = x;
   |             ---   ^ expected `u32`, found `u8`
   |             |
   |             expected due to this
   |
help: you can convert a `u8` to a `u32`
   |
LL |     let _y: u32 = x.into();
   |                    +++++++

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0308`.