Systems programming provides the foundation for the world's computation. Develop ing performance-sensitive code requires a programming language that puts program mers in control of how memory, processor time, and other system resources are us ed. The Rust systems programming language combines that control with a modern ty pe system that catches broad classes of common mistakes, from memory management errors to interthread data races. With this practical guide, experienced system s programmers will learn how to successfully bridge the gap between performance and safety using Rust. Jim Blandy, Jason Orendorff, and Leonora Tindall demonstr ate how Rust's features put programmers in control over memory consumption and p rocessor use by combining predictable performance with memory safety and trustwo rthy concurrency. You'll learn: Rust's fundamental data types and the core c oncepts of ownership and borrowing Language basics including error handling, cr ates and modules, structs, and enums How to write flexible, efficient code with traits and generics Rust's key power tools: closures, iterators, and asynchron ous programming Collections, strings and text, input and output, concurrency, m acros, unsafe code, and interfacing with foreign functions This updated edi tion covers Rust 1.50 (February 2021).