How to print structures and arrays in Rust? (Debug, Display, formatting)

Hi everyone! I'm new to Rust and can't figure out how to output complex data types. I have a simple `User` struct and an array of numbers. When I try to print them using `println!`, the compiler complains and gives errors. Here's my code: ```rust struct User { name: String, age: u32, } fn main() { let user = User { name: "Alice".to_string(), age: 30 }; println!("User: {}", user); // Error! let numbers = [1, 2, 3, 4, 5]; println!("Array: {}", numbers); // Also error! } ``` The compiler says something about `std::fmt::Display` and `Debug`. I googled it, but it's all too complicated. I just need to output data to see its contents, not write a bunch of code. How to do this correctly and quickly? In other languages (Python, JavaScript) this works out of the box.