tldr/pages/common/rustup.md

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# rustup
> Rust toolchain installer.
> Install, manage, and update Rust toolchains.
> Homepage: <https://github.com/rust-lang/rustup.rs>.
- 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_name}} cargo build`