Rust

Project Commands

Create and manage Rust projects with Cargo. Initialize new libraries and binaries, configure Cargo.toml, and organize your project structure for scalable development.

7 commands

Pro Tips

Use 'cargo new --lib mylib' for libraries and 'cargo new myapp' for binaries — sets up the correct template.

Use workspace Cargo.toml for monorepos: '[workspace] members = ["crates/*"]' shares dependencies.

Add '[profile.dev] opt-level = 1' to Cargo.toml for faster debug builds with some optimization.

Common Mistakes

Cargo.lock should be committed for binaries but NOT for libraries. Libraries should be flexible on versions.

Changing crate names in Cargo.toml after publishing can break downstream users. Plan names carefully.

Commands

Create new project

$ cargo new my-project

Create new Cargo binary project.

Create library

$ cargo new my-lib --lib

Create new Cargo library project.

Initialize in existing dir

$ cargo init

Initialize Cargo project in current directory.

Add dependency

$ cargo add serde

Add crate to dependencies.

Add with features

$ cargo add serde -F derive

Add crate with specific features.

Add dev dependency

$ cargo add --dev trybuild

Add development dependency.

Add from git

$ cargo add my-crate --git https://github.com/user/repo

Add crate from git repository.