error: attribute must be of the form `#[unwind(allowed|aborts)]`
  --> $DIR/malformed-unwind-1.rs:3:1
   |
LL | #[unwind]
   | ^^^^^^^^^

error: attribute must be of the form `#[unwind(allowed|aborts)]`
  --> $DIR/malformed-unwind-1.rs:7:1
   |
LL | #[unwind = ""]
   | ^^^^^^^^^^^^^^

error: aborting due to 2 previous errors