majiayu000 Cargo
Cargo is Rust's build system and package manager. It is famous for its reliability and developer experience.
When to Use
- Rust Projects: Mandatory.
- Formatting/Linting:
cargo fmt,cargo clippy. - Testing:
cargo testis built-in.
Quick Start
cargo new my-project
cd my-project
cargo run
# Cargo.toml
[dependencies]
serde = "1.0"
Core Concepts
Crates
Packages. Published to crates.io.
Cargo.lock
Ensures reproducible builds. Always commit for binaries, ignore for libraries.
Workspaces
Manage multiple packages in one repo. [workspace] in root Cargo.toml.
Best Practices (2025)
Do:
- Use
cargo check: Faster thanbuildfor checking syntax during dev. - Use
clippy: Listen to the linter. It teaches you Rust. - Use
cargo-deny: Scan dependency tree for licenses and bans.
Don't:
- Don't bloat: Rust binaries can get huge. Use
cargo-bloatto analyze size.