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+# rustup
+
+> Rust toolchain installer.
+> Install, manage, and update Rust toolchains.
+
+- 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`
+
+- Update all toolchains:
+
+`rustup update`
+
+- List installed toolchains:
+
+`rustup show`
+
+- Run cargo build with a certain toolchain:
+
+`rustup run {{toolchain_name}} cargo build`