Cargo is one of the nicest build systems I've used. Coming from maven, I have nothing but love for what cargo brings and how easy it makes it.
The key thing for me with Cargo (and Rust) is the documentation. I'm able to quickly glean what I need to do from the docs, and often with useful examples that are close to my use case.
I do wish the package ecosystem was set up with namespaces. Abandoned crates, name squatting, etc. should really be a thing of the past. But I guess this fosters creativity in names.
