error[E0539]: malformed `unstable` attribute input
  --> $DIR/stability-attribute-sanity-4.rs:8:5
   |
LL |     #[unstable]
   |     ^^^^^^^^^^^
   |     |
   |     expected this to be a list
   |     help: must be of the form: `#[unstable(feature = "name", reason = "...", issue = "N")]`

error[E0539]: malformed `unstable` attribute input
  --> $DIR/stability-attribute-sanity-4.rs:11:5
   |
LL |     #[unstable = "b"]
   |     ^^^^^^^^^^^^^^^^^
   |     |
   |     expected this to be a list
   |     help: must be of the form: `#[unstable(feature = "name", reason = "...", issue = "N")]`

error[E0539]: malformed `stable` attribute input
  --> $DIR/stability-attribute-sanity-4.rs:14:5
   |
LL |     #[stable]
   |     ^^^^^^^^^
   |     |
   |     expected this to be a list
   |     help: must be of the form: `#[stable(feature = "name", since = "version")]`

error[E0539]: malformed `stable` attribute input
  --> $DIR/stability-attribute-sanity-4.rs:17:5
   |
LL |     #[stable = "a"]
   |     ^^^^^^^^^^^^^^^
   |     |
   |     expected this to be a list
   |     help: must be of the form: `#[stable(feature = "name", since = "version")]`

error[E0542]: missing 'since'
  --> $DIR/stability-attribute-sanity-4.rs:21:5
   |
LL |     #[deprecated]
   |     ^^^^^^^^^^^^^

error[E0543]: missing 'note'
  --> $DIR/stability-attribute-sanity-4.rs:21:5
   |
LL |     #[deprecated]
   |     ^^^^^^^^^^^^^

error[E0542]: missing 'since'
  --> $DIR/stability-attribute-sanity-4.rs:26:5
   |
LL |     #[deprecated = "a"]
   |     ^^^^^^^^^^^^^^^^^^^

error: aborting due to 7 previous errors

Some errors have detailed explanations: E0539, E0542, E0543.
For more information about an error, try `rustc --explain E0539`.