For me it's strong static typing, control about memory layout of you data, memory locality (arrays are arrays and not linked lists in disguise, you know what go

For me it's strong static typing, control about memory layout of you data, memory locality (arrays are arrays and not linked lists in disguise, you know what goes on the stack and what's on the heap, etc), support for bit based operations (which Rust lacks a little as there's not bitfields), deterministic memory management and a few things I didn't think of.