Rust CLI rustup, Toolchains, Components, and Targets

rustup toolchain list

# Display toolchains available on the machine.

rustup toolchain install nightly

# Add the nightly toolchain.

rustup toolchain install beta

# Add the beta channel toolchain.

rustup default nightly

# Change the global default toolchain.

rustup override set stable

# Create a directory override for the current folder.

rustup override unset

# Stop forcing a local toolchain override.

[toolchain]
channel = "stable"
components = ["rustfmt", "clippy"]
targets = ["x86_64-unknown-linux-musl"]

# Check in a `rust-toolchain.toml` file.

cargo +stable test

# Run one command on the stable toolchain.

rustup component list

# Show installed and available components for active toolchain.

rustup component add rustfmt

# Add the formatter component.

rustup component add clippy

# Add the Clippy lint component.

rustup component add rust-src

# Add standard library source code.

rustup doc

# Launch the locally installed Rust documentation.

rustup target list

# Show supported target triples.

rustup target add x86_64-unknown-linux-musl

# Install standard libraries for a cross target.

rustup target add aarch64-apple-darwin

# Install support for macOS ARM builds.

cargo build --target x86_64-unknown-linux-musl

# Compile artifacts for a non-default platform.

cargo build --target aarch64-apple-darwin

# Build target-specific binaries for packaging instead of running them locally.