Not really. The main reason for choosing Rust was to try it out, because it's the new cool thing. And I do find it really enjoyable. Rust is also trying very hard to keep dependency-related breakage to a minimum, and I think the Cargo ecosystem is doing a great job at that.
Fair enough; "I wanted to try out X" is always a valid reason. It's just that compared to C, things like Unicode support, argument parsing and JSON support are already part of D's standard library so no dependencies should be required for those.
