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Rust Error Handling Reference — Result, Option, ? operator, thiserror, anyhow, custom errors, map_err


🦀 Rust Error Handling

Result and Option (map/and_then/unwrap_or_else chains), ? operator propagation, thiserror for library errors, anyhow for application errors, custom error types with From conversions, panic vs Result, and error context patterns.



🔍 Free tool: Rust Cargo Health Checker — check any Rust crate — including thiserror and anyhow — for known CVEs, latest version, and EOL status.