silence warnings

src/main.rs

@@ -2,7 +2,6 @@ use std::{
     collections::{HashSet, VecDeque},
     fs,
     io::Read,
-    sync::Arc,
     time::Duration,
 };
 
@@ -11,7 +10,7 @@ use clap::{Parser, ValueEnum};
 use flate2::read::GzDecoder;
 use futures::stream::{self, StreamExt};
 use mimalloc::MiMalloc;
-use reqwest::{header, Client};
+use reqwest::{Client};
 use roxmltree::Document;
 use tokio::time::timeout;
 use url::Url;