Fix/suppress warnings

async_db/src/db.rs

@@ -1,8 +1,6 @@
 use actix_web::{web, Error as AWError};
 use failure::Error;
 use futures::{Future, TryFutureExt};
-use r2d2;
-use r2d2_sqlite;
 use rusqlite::{Statement, NO_PARAMS};
 use serde::{Deserialize, Serialize};
 use std::{thread::sleep, time::Duration};

async_db/src/main.rs

@@ -22,6 +22,7 @@ mod db;
 use db::{Pool, Queries};
 
 /// Version 1: Calls 4 queries in sequential order, as an asynchronous handler
+#[allow(clippy::eval_order_dependence)] // it's FP?
 async fn asyncio_weather(db: web::Data<Pool>) -> Result<HttpResponse, AWError> {
     let result = vec![
         db::execute(&db, Queries::GetTopTenHottestYears).await?,