bin.name = "rustup"
args = ["up", "--help"]
stdout = """
...
Update Rust toolchains and rustup

Usage: rustup[EXE] update [OPTIONS] [TOOLCHAIN]...

Arguments:
  [TOOLCHAIN]...  Toolchain name, such as 'stable', 'nightly', or '1.8.0'. For more information see
                  `rustup help toolchain`

Options:
      --no-self-update  Don't perform self update when running the `rustup update` command
      --force           Force an update, even if some components are missing
      --force-non-host  Install toolchains that require an emulator. See
                        https://github.com/rust-lang/rustup/wiki/Non-host-toolchains
  -h, --help            Print help

Discussion:
    With no toolchain specified, the `update` command updates each of
    the installed toolchains from the official release channels, then
    updates rustup itself.

    If given a toolchain argument then `update` updates that
    toolchain, the same as `rustup toolchain install`.
"""
stderr = ""
