error: attribute must be of the form `#[unstable(feature = "name", reason = "...", issue = "N")]`
  --> $DIR/stability-attribute-sanity-4.rs:8:5
   |
LL |     #[unstable]
   |     ^^^^^^^^^^^

error: attribute must be of the form `#[unstable(feature = "name", reason = "...", issue = "N")]`
  --> $DIR/stability-attribute-sanity-4.rs:11:5
   |
LL |     #[unstable = "b"]
   |     ^^^^^^^^^^^^^^^^^

error: attribute must be of the form `#[stable(feature = "name", since = "version")]`
  --> $DIR/stability-attribute-sanity-4.rs:14:5
   |
LL |     #[stable]
   |     ^^^^^^^^^

error: attribute must be of the form `#[stable(feature = "name", since = "version")]`
  --> $DIR/stability-attribute-sanity-4.rs:17:5
   |
LL |     #[stable = "a"]
   |     ^^^^^^^^^^^^^^^

error: attribute must be of the form `#[rustc_deprecated(since = "version", reason = "...")]`
  --> $DIR/stability-attribute-sanity-4.rs:21:5
   |
LL |     #[rustc_deprecated]
   |     ^^^^^^^^^^^^^^^^^^^

error: attribute must be of the form `#[rustc_deprecated(since = "version", reason = "...")]`
  --> $DIR/stability-attribute-sanity-4.rs:25:5
   |
LL |     #[rustc_deprecated = "a"]
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to 6 previous errors