Rust for Go Engineers

The core translation

If your Go instinct says…	Rust asks you to notice…
`x := value`	`let x = value;`; immutable by default unless `mut`.
Return `(T, error)`	Return `Result<T, E>`; success and failure are one typed value.
Pointer or value?	Owner or borrower? `T` owns; `&T` reads; `&mut T` mutates.
Nil check	`Option<T>`; absence must be handled explicitly.
Method receiver	`self`, `&self`, or `&mut self` tells ownership/mutation.
Package/module	Crate, module, item visibility, and Cargo package layout.

fn greet(name: &str) -> String

Read it as: “function greet borrows text named name and returns an owned String.”

fn save(path: &Path, text: &str) -> Result<(), std::io::Error>

Read it as: “borrow a path and text; return either success with no interesting value (), or an I/O error.”