I wouldn't say that. For primitives yeah, day or two. But if you want to build a proper program, it'll take time to get used to it. For my first few projects I just used clone everywhere. Passing by reference and managing lifetimes, specially when writing libraries is something that takes time to get used to. I still don't feel confident.
Besides that I do like Rust though. Sometimes I feel like "just let me do that, C let's me", but I know it's just adding safety where C wouldn't care.