False negative lint for `unused_imports`

Code

mod a {
  pub(crate) use crate::s;
}
mod b {
  pub mod s {}
}
use self::b::*;
use self::a::s;

fn main() {}

Current output

nothing

Desired output

Report `use self::a::s` as `unused_import`

Rationale and extra context

If you make a slight modification:

mod a {
  pub(crate) use crate::s;
}
mod b {
  pub mod s {}
}
use self::b::*;
- use self::a::s;
+ use self::a::s as other_s;

fn main() {}

It will report use self::a::s as other_s as an unused import.

Other cases

No response

Rust Version

rustc 1.80.0-nightly (72fdf913c 2024-06-05)
binary: rustc
commit-hash: 72fdf913c53dd0e75313ba83e4aa80df3f6e2871
commit-date: 2024-06-05
host: aarch64-apple-darwin
release: 1.80.0-nightly
LLVM version: 18.1.6

Anything else?

No response

Start by compiling the provided Rust reproducer with the reported rustc version and confirm that the direct use self::a::s import is not reported while the aliased form is. Trace the unused_imports lint entry point and compare how glob and re-export resolution are handled. Done means the original form is reported as an unused import without regressing the aliased case.