Setting up Rust and Cargo

Setting up Rust and Cargo\n\nRust provides rustup (version manager) and cargo (package manager and build system). Together, they handle everything needed to build Rust applications.\n\n## Installation (macOS, Linux, Windows WSL)\n\nRust provides a simple installation script:\n\nbash\ncurl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh\n\n\nThis script automatically:\n- Downloads the appropriate Rust toolchain for your OS\n- Installs rustup, cargo, rustc, and documentation\n- Sets up your PATH environment variable\n\nVerify installation:\n\nbash\nrustc --version # Rust compiler version\ncargo --version # Package manager version\nrustup --version # Version manager\n\n\n## Updating Rust\n\nRust releases stable versions every 6 weeks. Keep updated:\n\nbash\nrustup update\nrustup toolchain list # See installed toolchains\nrustup install nightly # Install nightly builds\nrustup default stable # Set default toolchain\n\n\n## Creating Your First Project\n\nbash\ncargo new hello_world --bin # Binary project\ncargo new my_lib --lib # Library project\ncd hello_world\n\n\n### Generated Structure\n\n\nhello_world/\n├── Cargo.toml # Project manifest\n├── Cargo.lock # Dependency lock file\n└── src/\n └── main.rs # Entry point\n\n\n## Building and Running\n\nbash\ncargo build # Debug build\ncargo build --release # Optimized release build\ncargo run # Build and run\ncargo check # Verify without building binary\ncargo test # Run tests\ncargo fmt # Auto-format code\ncargo clippy # Linter for improvements\ncargo doc --open # Generate & open documentation\n\n\nDebug builds compile faster but run slower. Release builds take longer but produce significantly faster binaries.