Asynchronous programming allows the development of services that can handle millions of requests without saturating memory and CPU utilization. Support for asynchrony is usually baked into the programming language; we take a look at async support in Rust, a type-safe and memory-safe systems programming language that guarantees safety at compile time using rules that eliminate many issues prevalent in traditional languages. We take a peek at the inner workings of Tokio, an asynchronous runtime for Rust that provides scheduling, networking, and many other primitive operations for managing asynchronous tasks.