When I try to deploy on Render or AWS, I get a PoolTimedOut error every time.

[bocksdin]

I've got a simple API that currently functions perfectly on my local machine. Actix Web with SQLx building a pool for a MariaDB instance. When I try to deploy on Render and AWS, I get a PoolTimedOut error every time. I have no clue why this is happening only in remote hosted instances. I assume I'm doing something wrong, but this is my first time hosting a Rust built API remotely.

Here is the backtrace:

Jun 21 10:02:32 PM note: Some details are omitted, run with RUST_BACKTRACE=full for a verbose backtrace.
Jun 21 10:03:03 PM thread 'main' panicked at 'Error building a connection pool: PoolTimedOut', src/main.rs:107:10
Jun 21 10:03:03 PM stack backtrace:
Jun 21 10:03:03 PM 0: rust_begin_unwind
Jun 21 10:03:03 PM at ./rustc/90c541806f23a127002de5b4038be731ba1458ca/library/std/src/panicking.rs:578:5
Jun 21 10:03:03 PM 1: core::panicking::panic_fmt
Jun 21 10:03:03 PM at ./rustc/90c541806f23a127002de5b4038be731ba1458ca/library/core/src/panicking.rs:67:14
Jun 21 10:03:03 PM 2: core::result::unwrap_failed
Jun 21 10:03:03 PM at ./rustc/90c541806f23a127002de5b4038be731ba1458ca/library/core/src/result.rs:1687:5
Jun 21 10:03:03 PM 3: std::thread::local::LocalKey::with
Jun 21 10:03:03 PM 4: <core::pin::Pin

as core::future::future::Future>::poll
Jun 21 10:03:03 PM 5: tokio::runtime::scheduler::current_thread::CurrentThread::block_on
Jun 21 10:03:03 PM 6: tokio::runtime::runtime::Runtime::block_on
Jun 21 10:03:03 PM 7: fra_api::main

And here is my code:

use actix_web::{
    dev::ServiceRequest,
    error::Error,
    web::{self, Data},
    App, HttpMessage, HttpServer,
};
use dotenv::dotenv;
use sqlx::{mysql::MySqlPoolOptions, MySqlPool};

use actix_web_httpauth::{
    extractors::{
        bearer::{self, BearerAuth},
        AuthenticationError,
    },
    middleware::HttpAuthentication,
};
use hmac::{Hmac, Mac};
use jwt::{Claims, VerifyWithKey};
use serde::{Deserialize, Serialize};
use sha2::Sha256;

mod services;
use services::auth::{generate_api_token, generate_app_token, login};

pub struct AppState {
    db: MySqlPool,
}

...
#[actix_web::main]
async fn main() -> std::io::Result<()> {
    dotenv().ok();
    let database_url = std::env::var("DATABASE_URL").expect("DATABASE_URL must be set");
    let pool = MySqlPoolOptions::new()
        .max_connections(5)
        .connect(&database_url)
        .await
        .expect("Error building a connection pool");

    HttpServer::new(move || {
        let app_bearer_middleware = HttpAuthentication::bearer(app_validator);
        let api_bearer_middleware = HttpAuthentication::bearer(api_validator);

        App::new()
            .app_data(Data::new(AppState { db: pool.clone() }))
            .service(generate_api_token)
            .service(generate_app_token)
            .service(
                web::scope("v1")
                    .service(
                        web::scope("auth")
                            .wrap(app_bearer_middleware)
                            .service(login),
                    )
                    .service(web::scope("").wrap(api_bearer_middleware)),
            )
    })
    .bind(("127.0.0.1", 8080))?
    .run()
    .await
}