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: main.rs
    path of file: ./repos/rerun/crates/re_web_viewer_server/src
    
    the code of the file until where you have to start completion: #![forbid(unsafe_code)]
#![warn(clippy::all, rust_2018_idioms)]

/// Build and host the rerun web-viewer.
///
/// Debug-builds will build and host the debug version of the viewer.
#[derive(Debug, clap::Parser)]
#[clap(author, version, about)]
struct Args {
    /// What TCP port do we listen to?
    ///
    /// Use `0` to tel
    
async fn main() {
    re_log::setup_logging();

    use clap::Parser as _;
    let args = Args::parse();

    let bind_ip = &args.bind;
    let server = re_web_viewer_server::WebViewerServer::new(
        bind_ip,
        re_web_viewer_server::WebViewerServerPort(args.port),
    )
    .expect("Could not create web server");

    let url = server.server_url();
    eprintln!("Hosting web-viewer on {url}");

    if args.open {
        if let Err(err) = webbrowser::open(&url) {
            re_log::error!("Could not open web browser: {err}");
        }
    }

    server.serve().await.unwrap();
}