I just can't see how Rust is a good choice for web dev. There's a lot of mental overhead to writing Rust. Something like C#/Kotlin/Go will avoid all the same bugs and give you 95% of the performance while being much easier to code. Rust is dramatically lower level than something like Ruby or Python. But sometimes the promise of really usable dependency and project management with something like Cargo wins out over the minimalist approach that Go takes. Rust (and something like Rocket.rs) wouldn't be my first choice for anything other than smaller personal projects, but it's not nearly as awkward as PHP was before it matured... and it's nowhere near as bad as rolling everything from scratch in C++.
It also depends on your target audience. My experience has been that Rust is significantly more portable than C#, Node, Elixir, and (to some extent) Go. Java (and by extension things like Kotlin and Clojure) have a big leg up here too.
