error: this file contains an un-closed delimiter
  --> $DIR/missing_right_paren.rs:3:11
   |
LL | fn main((ؼ
   |        -- ^
   |        ||
   |        |un-closed delimiter
   |        un-closed delimiter

error: expected one of `:` or `|`, found `)`
  --> $DIR/missing_right_paren.rs:3:11
   |
LL | fn main((ؼ
   |           ^ expected one of `:` or `|`

error: aborting due to 2 previous errors