Source viewer sometimes links to `empty_library` in file tree

[cdmistman]

In some crates, the file tree simply links to some empty crate called empty_library which contains a single file, lib.rs. Clicking on the file results in a 404

Most recent example I've found is in the source viewer for HashBrown (linking to map.rs, although accessing any source file through https://docs.rs/hashbrown/0.11.2 results in the bad source tree. This has happened for multiple crates (and I can add more links as I find them) but notably might only affect certain versions - for example, the source file tree works when looking at https://docs.rs/hashbrown/0.11.1

If this is a rustdoc issue and not docs.rs then I can close this issue and reopen in rust-lang/rust

[syphar]

Thank you for the report!
This specific source-viewer and it's file-list are build in docs.rs, so it's definitely an issue with us here.

That being said, I just ran a clean build of this crate and version locally and the file-list is correct.

So it seems like a past bug / production issue that could be solved by a rebuild. If it isn't a known issue we could query other releases that share the file-list with empty-library, but aren't it. Though it would be tricky to differentiate between these and other empty libraries.

[cdmistman]

Awesome, glad it can be resolved easily! I do remember this impacting other crates, although I can't remember any others so I can't give you any more that suffer from the bug. It's still appearing as empty_library for me, I'm assuming it'll take a while to update?

[Nemo157]

This specific source-viewer and it's file-list are build in docs.rs, so it's definitely an issue with us here.

This is the one generated by rustdoc, the docs.rs one looks fine for this release.

[jyn514]

Duplicate of #1313

[syphar]

damn, confused the two viewers again 😆