Rust Quick Start Guide

Compiling our project

The basic command to compile a Rust program is simple: cargo build.

We need to be in the directory containing Cargo.toml (or any subdirectory of that directory) in order to be able to do this, since that's how the cargo program knows which project to compile. However, we don't need to give it any other information, since everything it needs to know is in the metadata file.

Here, we see the result of building the chapter02 source code:

The warnings are expected and do not prevent the compile from succeeding. If we look at those warnings carefully, we can see that Rust is a lot more helpful with its warnings than many ...