`unnecessary_unwrap` false negative of Option variable in struct

[gwen-lg]

Summary

If an Option variable tested with if + is_none before unwrap is local, the lint unnecessary_unwrap is reported. But if the variable is nested in a struct, nothing is reported.

Lint Name

unnecessary_unwrap

Reproducer

I tried this code:

    struct Soption {
        option: Option<bool>,
    }
    let sopt = Soption { option: Some(true) };
    let _res = if sopt.option.is_none() {
        false // default
    } else {
        sopt.option.unwrap()
    };

I expected to see this happen:

warning: called `unwrap` on `option` after checking its variant with `is_none`
 --> src/clippy_unwrap_or.rs:7:9
  |
4 |     let _res = if sopt.option.is_none() {
  |                ------------------- help: try: `if let Some(<item>) = option`
...
7 |         sopt.option.unwrap()
  |         ^^^^^^^^^^^^^^^
  |
  = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap

Instead, this happened:
None

while if the option var is local, a report is provided :

    let opt = Some(true);
    let _res = if opt.is_none() {
        false // default
    } else {
        opt.unwrap()
    };

warning: used `unwrap()` on `Some` value
 --> src/clippy_unwrap_or.rs:7:9
  |
7 |         option.unwrap()
  |         ^^^^^^^^^^^^^^^
  |
help: remove the `Some` and `unwrap()`
 --> src/clippy_unwrap_or.rs:2:18
  |
2 |     let option = Some(true);
  |                  ^^^^^^^^^^
  = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_literal_unwrap
  = note: `#[warn(clippy::unnecessary_literal_unwrap)]` on by default

Version

rustc 1.88.0 (6b00bc388 2025-06-23)
binary: rustc
commit-hash: 6b00bc3880198600130e1cf62b8f8a93494488cc
commit-date: 2025-06-23
host: x86_64-unknown-linux-gnu
release: 1.88.0
LLVM version: 20.1.5