Rust fundamentally doesn't require any more intelligence than is required to write correct C or C++ code. It actually requires less, because you're offloading the mental labor of memory management onto the compiler.

If the assertion is that Rust is unsuitable for the average programmer, then the consequence would be that C and C++ are unsuitable for the average programmer... and yet average programmers have been writing C and C++ for decades.

I'm closer to an idiot than I am to a genius, and yet I write Rust all the time. You'll be fine.