Clippy linting changes

src/config.rs

@@ -1,9 +1,8 @@
 use std::collections::HashMap;
 use std::error::Error;
 use std::fs;
-use std::hash::Hash;
 use std::net::Ipv6Addr;
-use ipnet::{IpAdd, IpBitAnd, IpBitOr, IpSub};
+use ipnet::{IpBitOr, IpSub};
 use std::str::FromStr;
 use log::{error, warn};
 use serde_derive::{Deserialize, Serialize};
@@ -36,7 +35,7 @@ impl InterfaceConfig {
     pub(crate) fn full_v6(&self, interface_name: &String, host_v6: Ipv6Addr) -> Result<Ipv6Addr, ()> {
         let host_range = Ipv6Addr::from(host_v6.saturating_sub(self.host_address));
         let interface_address = match self.interfaces.get(interface_name) {
-            Some(address) => address.clone(),
+            Some(address) => *address,
             None => {
                 let err_msg = "Malformed IP in interfaces.toml";
                 match connected_to_journal() {
@@ -55,7 +54,7 @@ impl Default for InterfaceConfig {
     fn default() -> Self {
         InterfaceConfig {
             host_address: Ipv6Addr::from_str("::").expect("Malformed literal in code"),
-            interfaces: HashMap::from([(" ".to_string(), Ipv6Addr::from(0))]),
+            interfaces: HashMap::from([(" ".to_owned(), Ipv6Addr::from(0))]),
         }
     }
 }
@@ -72,9 +71,9 @@ pub(crate) struct ZoneEntry {
 impl Default for ZoneEntry {
     fn default() -> Self {
         ZoneEntry {
-            name: " ".to_string(),
+            name: " ".to_owned(),
             r#type: vec![A, AAAA],
-            interface: " ".to_string(),
+            interface: " ".to_owned(),
         }
     }
 }
@@ -131,9 +130,9 @@ impl ZoneConfig {
 impl Default for ZoneConfig {
     fn default() -> Self {
         ZoneConfig {
-            email: " ".to_string(),
-            name: " ".to_string(),
-            id: " ".to_string(),
+            email: " ".to_owned(),
+            name: " ".to_owned(),
+            id: " ".to_owned(),
             entries: vec![ZoneEntry::default()],
         }
     }