fix lint

rust/processor/src/processors/mod.rs

@@ -102,6 +102,7 @@ pub trait ProcessorTrait: Send + Sync + Debug {
 
     /// Gets the connection.
     /// If it was unable to do so (default timeout: 30s), it will keep retrying until it can.
+    #[allow(unknown_lints)]
     #[allow(elided_named_lifetimes)]
     async fn get_conn(&self) -> DbPoolConnection {
         let pool = self.connection_pool();