rust server: warning: you should consider deriving a Default implementation for server::protocol::Builder

[problame]

warning: you should consider deriving a `Default` implementation for `server::protocol::Builder`
   --> /home/cs/orehab-services/target/debug/build/my-project-351e70c4be1ed340/out/protocol.rs:235:5
    |
235 | /     pub fn new() -> Self {
236 | |         Self { services: vec![] }
237 | |     }
    | |_____^
    |
    = note: `#[warn(clippy::new_without_default)]` on by default
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
help: try this
    |
231 | #[derive(Default)]
    |

warning: 2 warnings emitted