Clippy linting changes

src/main.rs

@@ -1,6 +1,5 @@
 /*use cloudflare_old::{Instance, CloudflareDnsType};*/
 use reqwest::blocking::get;
-use serde_derive::{Deserialize, Serialize};
 use std::{thread::{sleep}};
 use std::error::Error;
 use std::net::{Ipv4Addr, Ipv6Addr};
@@ -25,8 +24,8 @@ struct Addresses {
 impl Addresses {
     fn new() -> Result<Self, Box<dyn Error>> {
         let mut ret = Self {
-            ipv4_uri: "https://am.i.mullvad.net/ip".to_string(),
-            ipv6_uri: "https://ipv6.am.i.mullvad.net/ip".to_string(),
+            ipv4_uri: "https://am.i.mullvad.net/ip".to_owned(),
+            ipv6_uri: "https://ipv6.am.i.mullvad.net/ip".to_owned(),
             ipv4: Ipv4Addr::new(0, 0, 0, 0),
             ipv6: Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0)
         };
@@ -200,7 +199,7 @@ fn main() {
             if true {
                 let mut error = false;
                 for zone in &zone_cfgs {
-                    let cf_zone = match CloudflareZone::new(&zone) {
+                    let cf_zone = match CloudflareZone::new(zone) {
                         Ok(data) => data,
                         Err(e) => {
                             let err_msg = format!("Cloudflare Token likely not set. Error: {}", e);