error: expected `fn`
  --- help: `#[catch]` can only be used on functions
 --> $DIR/catch.rs:6:1
  |
6 | struct Catcher(String);
  | ^^^^^^

error: expected `fn`
  --- help: `#[catch]` can only be used on functions
  --> $DIR/catch.rs:11:7
   |
11 | const CATCH: &str = "Catcher";
   |       ^^^^^

error: invalid value: expected unsigned integer literal
  --- help: `#[catch]` expects a single status integer, e.g.: #[catch(404)]
  --> $DIR/catch.rs:15:9
   |
15 | #[catch("404")] //~ ERROR expected unsigned integer literal
   |         ^^^^^

error: unexpected keyed parameter: expected literal or identifier
  --- help: `#[catch]` expects a single status integer, e.g.: #[catch(404)]
  --> $DIR/catch.rs:19:9
   |
19 | #[catch(code = "404")] //~ ERROR unexpected keyed parameter
   |         ^^^^

error: unexpected keyed parameter: expected literal or identifier
  --- help: `#[catch]` expects a single status integer, e.g.: #[catch(404)]
  --> $DIR/catch.rs:23:9
   |
23 | #[catch(code = 404)] //~ ERROR unexpected keyed parameter
   |         ^^^^

error: status must be in range [100, 599]
  --- help: `#[catch]` expects a single status integer, e.g.: #[catch(404)]
  --> $DIR/catch.rs:27:9
   |
27 | #[catch(99)] //~ ERROR in range [100, 599]
   |         ^^

error: status must be in range [100, 599]
  --- help: `#[catch]` expects a single status integer, e.g.: #[catch(404)]
  --> $DIR/catch.rs:31:9
   |
31 | #[catch(600)] //~ ERROR in range [100, 599]
   |         ^^^

error: unexpected attribute parameter: `message`
  --- help: `#[catch]` expects a single status integer, e.g.: #[catch(404)]
  --> $DIR/catch.rs:35:14
   |
35 | #[catch(400, message = "foo")] //~ ERROR unexpected attribute parameter: `message`
   |              ^^^^^^^

error: invalid number of arguments: must be zero or one
  --- help: catchers may optionally take an argument of type `&Request`
  --> $DIR/catch.rs:40:7
   |
40 | fn f3(_request: &Request, other: bool) {
   |       ^^^^^^^^

warning: unused import: `rocket::Request`
 --> $DIR/catch.rs:3:5
  |
3 | use rocket::Request;
  |     ^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` on by default