error: `cfg` is not followed by parentheses
  --> $DIR/invalid-cfg.rs:2:7
   |
LL | #[doc(cfg = "x")]
   |       ^^^^^^^^^ help: expected syntax is: `cfg(/* predicate */)`

error: multiple `cfg` predicates are specified
  --> $DIR/invalid-cfg.rs:3:14
   |
LL | #[doc(cfg(x, y))]
   |              ^

error: aborting due to 2 previous errors