You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: cbuild.rs
    path of file: ./repos/cargo-c/src/bin
    
    the code of the file until where you have to start completion: use cargo::util::command_prelude::ArgMatchesExt;
use cargo::CliResult;
use cargo::Config;

use cargo_c::build::*;
use cargo_c::cli::run_cargo_fallback;
use cargo_c::cli::subcommand_build;
use cargo_c::config::*;

fn main() -> CliResult {
    let mut config = Config::default()?;

    let subcommand = subcommand_build("cbuild", "Build the crate C-API");
    let mut app = clap::command!()
        .dont_collapse_args_in_usage(true)
        .allow_external_subcommands(true)
        .subcommand(subcommand);

    let args = app.clone().get_matches();

    let subcommand_args = match args.subcommand() {
        Some(("cbuild", args)) => args,
        Some((cmd, args)) => {
            return run_cargo_fallback(cmd, args);
        }
        _ => {
            // No subcommand provided.
     
    
fn main() -> CliResult {
    let mut config = Config::default()?;

    let subcommand = subcommand_build("cbuild", "Build the crate C-API");
    let mut app = clap::command!()
        .dont_collapse_args_in_usage(true)
        .allow_external_subcommands(true)
        .subcommand(subcommand);

    let args = app.clone().get_matches();

    let subcommand_args = match args.subcommand() {
        Some(("cbuild", args)) => args,
        Some((cmd, args)) => {
            return run_cargo_fallback(cmd, args);
        }
        _ => {
            // No subcommand provided.
            app.print_help()?;
            return Ok(());
        }
    };

    if subcommand_args.flag("version") {
        println!("{} {}", env!("CARGO_PKG_NAME"), env!("CARGO_PKG_VERSION"));
        return Ok(());
    }

    config_configure(&mut config, subcommand_args)?;

    let mut ws = subcommand_args.workspace(&config)?;

    let _ = cbuild(&mut ws, &config, subcommand_args, "dev")?;

    Ok(())
}