Rust does want to have a big battery. There have been works about promoting some crates as "the" tool to handle certain tasks. See the rust cookbook[0].

Rust is against pulling it in the standard library because that forces them to make additional stability guarantees. When you do that, you end up like python's `urllib`/`urllib2` situation.

[0] https://rust-lang-nursery.github.io/rust-cookbook/