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: delta_update.rs
    path of file: ./repos/AtCoderProblems/atcoder-problems-backend/src/bin
    
    the code of the file until where you have to start completion: use atcoder_problems_backend::utils::{init_log_config, EXCLUDED_USERS};
use log::{self, info};
use sql_client::accepted_count::AcceptedCountClient;
use sql_client::initialize_pool;
use sql_client::language_count::LanguageCountClient;
use sql_client::rated_point_sum::RatedPointSumClient;
use sql_client::streak::StreakClient;
use sql_client::submission_client::{SubmissionClient, SubmissionRequest};
use std::collections::BTreeSet;
use std::env;
use std::error::Error;

#[actix_web::main]
async fn main() -> Result<(), Box<dyn Error>> {
    init_log_config()?;
    info!("Started!");

    info!("Connecting to SQL ...");
    let url = env::var("SQL_URL")?;
    let conn = initialize_pool(&url).await?;

    info!("Loading submissions ...");
    let request = SubmissionRequest::RecentAccepted { count: 200 };
    let recent_submissions = conn.get_submissions(request).await?;

    info!("Filter submission by user_id ...");

    let user_ids = recent_submissions
        .into_iter()
        .filter(|submission| !EXCLUDED_USERS.contains(&submission.user_id.as_str()))
        .map(|s| s.user_id)
        .collect::<BTreeSet<_>>();
    let user_ids = user_ids.iter().map(|s| s.as_str()).collect::<Vec<_>>();

    info!("Loading submissions of {} users ...", user_ids.len());
    let request = SubmissionRequest::UsersAccepted {
        user_ids: &user_ids,
    };
   
    
async fn main() -> Result<(), Box<dyn Error>> {
    init_log_config()?;
    info!("Started!");

    info!("Connecting to SQL ...");
    let url = env::var("SQL_URL")?;
    let conn = initialize_pool(&url).await?;

    info!("Loading submissions ...");
    let request = SubmissionRequest::RecentAccepted { count: 200 };
    let recent_submissions = conn.get_submissions(request).await?;

    info!("Filter submission by user_id ...");

    let user_ids = recent_submissions
        .into_iter()
        .filter(|submission| !EXCLUDED_USERS.contains(&submission.user_id.as_str()))
        .map(|s| s.user_id)
        .collect::<BTreeSet<_>>();
    let user_ids = user_ids.iter().map(|s| s.as_str()).collect::<Vec<_>>();

    info!("Loading submissions of {} users ...", user_ids.len());
    let request = SubmissionRequest::UsersAccepted {
        user_ids: &user_ids,
    };
    let mut user_accepted_submissions = conn.get_submissions(request).await?;
    info!("There are {} submissions.", user_accepted_submissions.len());

    info!("Sorting by id ...");
    user_accepted_submissions.sort_by_key(|s| s.id);

    info!("Executing update_rated_point_sum...");
    conn.update_rated_point_sum(&user_accepted_submissions)
        .await?;

    info!("Executing update_accepted_count...");
    conn.update_accepted_count(&user_accepted_submissions)
        .await?;

    info!("Executing update_language_count...");
    conn.update_language_count(&user_accepted_submissions, &[])
        .await?;

    info!("Executing update_streak_count...");
    conn.update_streak_count(&user_accepted_submissions).await?;

    info!("Finished");
    Ok(())
}