fix(clippy): enable more lints and fix issues

We also add some more metadata to the Cargo.toml manifest

Cargo.toml

@@ -5,6 +5,16 @@ description = "An HTTP server using HTTP basic auth to make secure calls to nsup
 name = "webnsupdate"
 version = "0.3.2-dev"
 edition = "2021"
+license-file = "LICENSE"
+readme = "README.md"
+keywords = ["dns", "dyndns", "dynamic-ip"]
+categories = ["networking", "dns", "dyndns"]
+repository = "https://github.com/jalil-salame/webnsupdate"
+
+[lints.clippy]
+cargo = { level = "warn", priority = -2 }
+multiple_crate_versions = "allow"
+pedantic = { level = "warn", priority = -1 }
 
 [dependencies]
 axum = "0.7"

src/main.rs

@@ -77,7 +77,7 @@ struct Opts {
 
     /// Set client IP source
     ///
-    /// see: https://docs.rs/axum-client-ip/latest/axum_client_ip/enum.SecureClientIpSource.html
+    /// see: <https://docs.rs/axum-client-ip/latest/axum_client_ip/enum.SecureClientIpSource.html>
     #[clap(long, default_value = "RightmostXForwardedFor")]
     ip_source: SecureClientIpSource,
 
@@ -281,12 +281,9 @@ fn main() -> Result<()> {
                     }
                 }
             }
-            Ok(None) => {
-                info!("No previous IP address set");
-            }
-            Err(err) => {
-                error!("Failed to load last ip address: {err}")
-            }
+            Ok(None) => info!("No previous IP address set"),
+
+            Err(err) => error!("Failed to load last ip address: {err}"),
         };
 
         // Create services