importing an item into the module it was defined in is described as "multiple definitions"

Code

pub struct St;
use St;

Current output

error[E0255]: the name `St` is defined multiple times
 --> src/lib.rs:2:5
  |
1 | pub struct St;
  | -------------- previous definition of the type `St` here
2 | use St;
  |     ^^ `St` reimported here
  |
  = note: `St` must be defined only once in the type namespace of this module
help: you can use `as` to change the binding name of the import
  |
2 | use St as OtherSt;
  |        ++++++++++

warning: unused import: `St`
 --> src/lib.rs:2:5
  |
2 | use St;
  |     ^^
  |
  = note: `#[warn(unused_imports)]` on by default

Desired output

error[E0255]: the name `St` is defined multiple times
 --> src/lib.rs:2:5
  |
1 | pub struct St;
  | -------------- previous definition of the type `St` here
2 | use St;
  |     ^^ `St` reimported here
  |
  = note: `St` must be defined only once in the type namespace of this module
help: remove the import
  |
2 | use St;
  | ------

warning: unused import: `St`
 --> src/lib.rs:2:5
  |
2 | use St;
  |     ^^
  |
  = note: `#[warn(unused_imports)]` on by default

Rationale and extra context

No response

Other cases

this should also be handled for circular reimports:

pub use m::St;
mod m {
    pub struct St;
    use crate::St;
}

Rust Version

rustc 1.83.0-nightly (2bd1e894e 2024-09-26)
binary: rustc
commit-hash: 2bd1e894efde3b6be857ad345914a3b1cea51def
commit-date: 2024-09-26
host: x86_64-unknown-linux-gnu
release: 1.83.0-nightly
LLVM version: 19.1.0

Anything else?

No response

Start by reproducing the direct reimport example in src/lib.rs with the reported rustc version and compare the current and desired diagnostics. Check the circular reimport example as well; done means both cases suggest removing the import and retain the existing error and warning details.