Can't extract to function after adding `#[entry]`

rust-analyzer version: v0.4.1805
rustc version: rustc 1.76.0-beta.5 (f732c37b4 2024-01-12)
relevant settings: (see attached project)
vscode version: 1.85.0
(I try update to latest version, but I already hade this problem weeks ago with, I think, stable versions)

description

I have a RP2040 rust project and the refactoring is not working, only "extract to variable" appears in the menu, not "extract to function".

I made an almost minimal project to reproduce, and found that adding / removing the #[entry] line repeatably triggers / solves the problem. This finding allowed me to extract functions in my existing code by temporarily commenting the #[entry]

how to reproduce

see the attached project, and try commenting / uncommenting the entry attribute.
refactortest.zip

(note : the simplified project gives me an error on first line :

can't find crate for `test`
can't find craterustc[Click for full compiler diagnostic](rust-analyzer-diagnostics-view:<...>)

this error does not appear in my full project.

Start with the attached refactortest.zip project and reproduce the issue by commenting and uncommenting the #[entry] attribute. Compare the available refactoring actions, especially extract to function, and verify that the action works without introducing the reported diagnostic.