src/test/ui/parser/issue-17718-const-mut.stderr

error: const globals cannot be mutable
  --> $DIR/issue-17718-const-mut.rs:2:1
   |
LL | const
   | ----- help: you might want to declare a static instead: `static`
LL | mut
   | ^^^ cannot be mutable

error: aborting due to previous error