don't suggest turning crate-level attributes into outer style

[lolbinarycat]

Code

#![allow(dead_code)]
fn foo() {}
#![feature(iter_array_chunks)]
fn bar() {}

Current output

Compiling playground v0.0.1 (/playground)
error: an inner attribute is not permitted in this context
 --> src/lib.rs:3:1
  |
3 | #![feature(iter_array_chunks)]
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
4 | fn bar() {}
  | ----------- the inner attribute doesn't annotate this function
  |
  = note: inner attributes, like `#![no_std]`, annotate the item enclosing them, and are usually found at the beginning of source files
help: to annotate the function, change the attribute from inner to outer style
  |
3 - #![feature(iter_array_chunks)]
3 + #[feature(iter_array_chunks)]
  |

Desired output

Compiling playground v0.0.1 (/playground)
error: an inner attribute is not permitted in this context
 --> src/lib.rs:3:1
  |
3 | #![feature(iter_array_chunks)]
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
4 | fn bar() {}
  | ----------- the inner attribute doesn't annotate this function
  |
  = note: inner attributes, like `#![no_std]`, annotate the item enclosing them, and are usually found at the beginning of source files

Rationale and extra context

reduces distracting noise

Other cases

No response

Rust Version

rustc 1.80.0-nightly (debd22da6 2024-05-29)
binary: rustc
commit-hash: debd22da66cfa97c74040ebf68e420672ac8560e
commit-date: 2024-05-29
host: x86_64-unknown-linux-gnu
release: 1.80.0-nightly
LLVM version: 18.1.6

Anything else?

No response

[tgross35]

We might be able to suggest moving it to the top of the module by default. And then only if it an attribute known to work as both inner and outer (allow/deny, cfg, etc) suggest removing the !.