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rustup — Install, manage, and update Rust toolchains. Some subcommands, such as `toolchain`, `target`, `updat

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

How to use the rustup command: Install, manage, and update Rust toolchains. Some subcommands, such as toolchain, target, update, etc. have their own usage documentation. More information: <https://rust-lang.github.io/rustup/>.

Solution

rustup — Install, manage, and update Rust toolchains. Some subcommands, such as toolchain, target, update, etc. have their own usage documentation. More information: <https://rust-lang.github.io/rustup/>.

Install the nightly toolchain for your system:

rustup install nightly

Switch the default toolchain to nightly so that the cargo and rustc commands will use it:

rustup default nightly

Use the nightly toolchain when inside the current project but leave global settings unchanged:

rustup override set nightly

Update all toolchains:

rustup update

List installed toolchains:

rustup show

Run cargo build with a certain toolchain:

rustup run {{toolchain}} cargo build

Open the local Rust documentation in the default web browser:

rustup doc

Code Snippets

Install the nightly toolchain for your system

rustup install nightly

Switch the default toolchain to nightly so that the `cargo` and `rustc` commands will use it

rustup default nightly

Use the nightly toolchain when inside the current project but leave global settings unchanged

rustup override set nightly

Update all toolchains

rustup update

List installed toolchains

rustup show

Context

tldr-pages: common/rustup

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