[Thaxll]

Rust is not a pleasant language to read tbh: https://github.com/SergioBenitez/Rocket/blob/v0.4/core/http/...

Clean C++ 14/17 is less cluttered.

[vinay_ys]

That file looks quite readable (ignoring the comments - which again looks very readable in color syntax highlighted documentation).

[kbenson]

I think it's the numerous single character lifetime annotations that they are referring to. I agree that this particular bit of code is somewhat hard to parse (as a rust amateur), but that might be alleviated quite a bit with some less terse naming.