I tried this code:

#![feature(doc_auto_cfg)] #[cfg(any(all()))] pub fn f() {}

and:

#![feature(doc_auto_cfg)] #[cfg(any(true))] pub fn f() {}

I expected to see this happen: No doc_auto_cfg message appears in the documentation.

Instead, this happened:

For a workaround, not(all(false)) seems to work fine.

Meta

rustc --version --verbose:

rustc 1.91.0-nightly (7d82b83ed 2025-08-06) binary: rustc commit-hash: 7d82b83ed57d188ab3f2441a765a6419685a88a3 commit-date: 2025-08-06 host: x86_64-unknown-linux-gnu release: 1.91.0-nightly LLVM version: 21.1.0