I am not able to search anything that start with 'S'.
I guess it is because of
Click or press ‘S’ to search, ‘?’ for more options…
So, when one presses 'S' search field takes a focus but consequent 'S' presses do nothing.
It results in very inconvenient way to search without leading 'S' and to hope that autocomplete will help me.
I would open an issue somewhere on GitHub but I don't know where code for docs.rs is landed.
The docs aren't generated site-wide. The site runs rustdoc on each crate as it gets published to the index, and then serves up a bunch of static files.