error: expected identifier, found `+`
  --> $DIR/issue-33569.rs:2:8
   |
LL |     { $+ } => {
   |        ^

error: expected one of: `*`, `+`, or `?`
  --> $DIR/issue-33569.rs:6:13
   |
LL |         $(x)(y)
   |             ^^^

error: missing fragment specifier
  --> $DIR/issue-33569.rs:2:8
   |
LL |     { $+ } => {
   |        ^

error: missing fragment specifier
  --> $DIR/issue-33569.rs:2:8
   |
LL |     { $+ } => {
   |        ^
   |
   = note: `#[deny(missing_fragment_specifier)]` on by default
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #40107 <https://github.com/rust-lang/rust/issues/40107>

error: aborting due to 4 previous errors