Incorrect outer #![derive(Debug)] emits too many errors

[estebank]

The following incorrect code:

#![derive(Debug)]
struct Coordinate(i32, i32);

fn main() {
    println!("{:?}", Coordinate(4, 2));
}

generates the following output:

error: `derive` may only be applied to structs, enums and unions
 --> src/main.rs:1:1
  |
1 | #![derive(Debug)]
  | ^^^^^^^^^^^^^^^^^ help: try an outer attribute: `#[derive(Debug)]`

error: cannot determine resolution for the derive macro `Debug`
 --> src/main.rs:1:11
  |
1 | #![derive(Debug)]
  |           ^^^^^
  |
  = note: import resolution is stuck, try simplifying macro imports

error[E0277]: `Coordinate` doesn't implement `std::fmt::Debug`
 --> src/main.rs:5:22
  |
5 |     println!("{:?}", Coordinate(4, 2));
  |                      ^^^^^^^^^^^^^^^^ `Coordinate` cannot be formatted using `{:?}`
  |
  = help: the trait `std::fmt::Debug` is not implemented for `Coordinate`
  = note: add `#[derive(Debug)]` or manually implement `std::fmt::Debug`
  = note: required by `std::fmt::Debug::fmt`

We should not emit the second value, given it could detect that the following element is an ADT it could internally treat it as #[derive(Debug)] so that no knock-down errors will happen.

[jDomantas]

A slightly bigger problem with this issue is that compiler emits an error for every custom attribute in the crate if the bad attribute ends up being on the root of the crate:

#![forbif(unused)]
// ^^^^^^ note the typo

use serde::Serialize;

#[derive(Serialize)]
pub struct Foo {
    #[serde(rename = "bar")]
    foo: i32,
    #[serde(rename = "quux")]
    baz: i32,
}

For this example compiler emits a total of 4 errors - first the one about the typo, and then one of each of derive and serde attributes. Only the first error is meaningful, with the other 3 seeming completely unrelated to the first one.