nightly regression: `#[doc(alias)]` does not resolve across crate re-imports

[Bromeon]

Code

Two crates: dep, and main depending on dep.

// dep/lib.rs
#[doc(alias = "answer")] 
pub fn number() -> i32 { 42 }

// main/main.rs
pub use dep::number;

Reproduction Steps

The following Bash code sets everything up:

cargo new dep --lib
cargo new main
cd main
cargo add dep --path ../dep
echo '#[doc(alias = "answer")] pub fn number() -> i32 { 42 }' > ../dep/src/lib.rs
echo 'pub use dep::number;' > src/lib.rs
cargo doc --no-deps --open

You can change rustup default stable/nightly beforehand to switch between behaviors.

Expected Outcome

In the docs page now opened in the browser, search for the string "answer".
On stable Rust, the alias across crates is found in search:

Also, when running cargo doc on nightly without --no-deps, the alias is found in the other crate dep:

Actual Output

On nightly with cargo doc --no-deps, no results when looking for "answer":

Version

Stable and nightly (both latest as of today):

rustdoc 1.93.1 (01f6ddf75 2026-02-11)
rustdoc 1.95.0-nightly (0376d43d4 2026-02-20)

Additional Details

Similar but not identical to #141475.

[GuillaumeGomez]

Confirmed, thanks a lot for the detailed instructions. Taking a look.

[GuillaumeGomez]

Opened #153136 to fix it.