error: attribute must be of the form `#[proc_macro]`
  --> $DIR/invalid-attributes.rs:10:1
   |
LL | #[proc_macro = "test"]
   | ^^^^^^^^^^^^^^^^^^^^^^

error: attribute must be of the form `#[proc_macro]`
  --> $DIR/invalid-attributes.rs:13:1
   |
LL | #[proc_macro()]
   | ^^^^^^^^^^^^^^^

error: attribute must be of the form `#[proc_macro]`
  --> $DIR/invalid-attributes.rs:16:1
   |
LL | #[proc_macro(x)]
   | ^^^^^^^^^^^^^^^^

error: attribute must be of the form `#[proc_macro_attribute]`
  --> $DIR/invalid-attributes.rs:19:1
   |
LL | #[proc_macro_attribute = "test"]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: attribute must be of the form `#[proc_macro_attribute]`
  --> $DIR/invalid-attributes.rs:22:1
   |
LL | #[proc_macro_attribute()]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^

error: attribute must be of the form `#[proc_macro_attribute]`
  --> $DIR/invalid-attributes.rs:25:1
   |
LL | #[proc_macro_attribute(x)]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to 6 previous errors