Organization and errors

6 lessons in the Rust course.

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• FunctionsWrite functions with typed parameters and return values.
• ModulesOrganize code with mod, use, and visibility rules.
• CratesAdd dependencies from crates.io with Cargo.toml.
• Error HandlingPropagate recoverable errors with Result and the ? operator.
• Traits IntroShare behavior across types with traits.
• Cargo TestWrite unit tests and run them with cargo test.