As a skeptic of Rust I really appreciate this. I was very pleased to find the ASM option in the drop-down menu specifically. Coming from C/C++ I've found it difficult to understand how and why Rust generates the code that it does. Rust appears slightly less direct in its description of programs than C++ as it's shed the hardware-driven abstraction of memory and physical layout. My comfort level with seriously considering Rust for a next project is proportional to my understanding of what it's doing under the hood.
Thanks! Looks great.