ohmyzsh/plugins/cargo/cargo.plugin.zsh

function _cargo_commands() {
    local ret=1 state
    _arguments ':subcommand:->subcommand' && ret=0

    case $state in
      subcommand)
        subcommands=(
          "build:Build the current project"
          "clean:Clean up after a build"
          "help:Help about available commands"
          "new:Create a new project"
          "test:Run the tests"
          "update:Updates list of known packages"
          "run:Builds and runs the currecnt project"
        )
        _describe -t subcommands 'cargo subcommands' subcommands && ret=0
    esac

    return ret
}

compdef _cargo_commands cargo