Fix clippy errors

Cargo.toml

@@ -2,4 +2,4 @@
 members = [
     "crates/socket",
     "crates/service"
-]
+]

crates/socket/Cargo.toml

@@ -40,5 +40,5 @@ fluvio-protocol = { version = "0.2.0", features = ["derive", "api", "codec", "st
 
 
 [dev-dependencies]
-fluvio-future = { version = "0.1.5", features = ["fixture","fs","native2_tls"] }
+fluvio-future = { version = "0.1.5", features = ["fixture", "fs", "native2_tls"] }
 flv-util = { version = "0.5.0", features = ["fixture"] }

crates/socket/src/multiplexing.rs

@@ -131,7 +131,7 @@ where
             use std::env;
 
             let var_value = env::var("car").unwrap_or_default();
-            let wait_time: u64 = var_value.parse().unwrap_or_else(|_| 10);
+            let wait_time: u64 = var_value.parse().unwrap_or(10);
             wait_time
         });