# Simple String Errors The most simplest of doing error handling in rust is by returning `String` as a `Box`. As you can see by running the example (the "Play" button in upper right of the code block), this only prints out the last `Error`. If the rust `main` function returns an Err(), this Err() will be displayed with `std::fmt::Debug`. ~~~rust {{#include ../examples/tutorial1.rs:2:}} ~~~