Update based on lints

Signed-off-by: Jacob Kiers <code@kiers.eu>

src/main.rs

@@ -7,7 +7,7 @@ use crate::config::ConfigV1;
 use crate::servers::Server;
 use std::io::{stderr, stdout, Write};
 
-use log::{debug, error, info};
+use log::{debug, error};
 use pico_args::Arguments;
 use std::path::PathBuf;
 

src/servers/protocol/tcp.rs

@@ -1,6 +1,6 @@
 use crate::servers::protocol::tls::determine_upstream_name;
 use crate::servers::Proxy;
-use log::{debug, error, info, trace, warn};
+use log::{debug, error, info, warn};
 use std::error::Error;
 use std::sync::Arc;
 use tokio::net::{TcpListener, TcpStream};

src/servers/upstream_address.rs

@@ -4,7 +4,8 @@ use std::io::Result;
 use std::net::SocketAddr;
 use std::sync::Arc;
 use std::sync::RwLock;
-use time::{Duration, Instant, OffsetDateTime};
+use std::time::Instant;
+use time::{Duration, OffsetDateTime};
 
 #[derive(Debug, Clone, Default)]
 pub(crate) struct UpstreamAddress {

src/update.rs

@@ -1,4 +1,4 @@
-use self_update::{cargo_crate_version, version};
+use self_update::cargo_crate_version;
 
 pub(crate) fn update() {
     println!("Updating to the latest version...");