False positive for `let_and_return`

[Giga-Bowser]

Summary

Seems like it doesn't account for let-else statements which meaningfully change program logic

Lint Name

let_and_return

Reproducer

I tried this code:

fn minimal() -> Option<i32> {
    let value = Some(42);

    let v @ None = value else {
        panic!("uh oh!");
    };

    v
}

I saw this happen:

warning: returning the result of a `let` binding from a block
 --> src/lib.rs:8:5
  |
4 | /     let v @ None = value else {
5 | |         panic!("uh oh!");
6 | |     };
  | |______- unnecessary `let` binding
7 |
8 |       v
  |       ^
  |
  = help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.94.0/index.html#let_and_return
  = note: `#[warn(clippy::let_and_return)]` on by default
help: return the expression directly
  |
4 ~     
5 |
6 ~     value
  |

I expected to see this happen:
No warning, the let binding is necessary

Version

rustc 1.94.1 (e408947bf 2026-03-25)
binary: rustc
commit-hash: e408947bfd200af42db322daf0fadfe7e26d3bd1
commit-date: 2026-03-25
host: x86_64-unknown-linux-gnu
release: 1.94.1
LLVM version: 21.1.8

Additional Labels

@rustbot label +I-suggestion-causes-bug

[rustbot]

Error: Parsing relabel command in comment failed: ...' label +' | error: empty label at >| ' I-suggest'...

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[samueltardieu]

@profetia Is your fix ready? Otherwise I've got a one-liner I'm ready to upload.

[profetia]

Go ahead please.