Error Handling and Lifetimes: Result, Option, and Compile-Time Borrow Checking

Fri, 22 May 2026 10:00:00 +0800

If you’re used to Go’s if err != nil, encountering Rust’s error handling for the first time can be confusing. Go’s philosophy is explicit multi-return values, where errors are just ordinary values. Rust, on the other hand, elevates error handling to the type system level—a function that might fail must declare it explicitly in its return type. This design brings zero-cost abstractions but also introduces the two concepts that give beginners the most headaches: the Result<T, E> enum and lifetime annotations.

Result on Mi&Bee Blog

Error Handling and Lifetimes: Result, Option, and Compile-Time Borrow Checking