src/test/ui/parser/removed-syntax-uniq-mut-expr.stderr

   1 error: expected expression, found keyword `mut`
   2   --> $DIR/removed-syntax-uniq-mut-expr.rs:2:21
   3    |
   4 LL |     let a_box = box mut 42;
   5    |                     ^^^ expected expression
   6
   7 error: aborting due to previous error
   8