Reduce Error type size by boxing result state

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "epp-client"
-version = "0.4.0"
+version = "0.5.0"
 edition = "2018"
 license = "MIT"
 authors = ["Ritesh Chitlangi <ritesh@ayravat.com>"]

src/client.rs

@@ -138,10 +138,10 @@ impl<C: Connector> EppClient<C> {
             return Ok(rsp.data);
         }
 
-        let err = crate::error::Error::Command(ResponseStatus {
+        let err = crate::error::Error::Command(Box::new(ResponseStatus {
             result: rsp.data.result,
             tr_ids: rsp.data.tr_ids,
-        });
+        }));
 
         error!(%response, "Failed to deserialize response for transaction: {}", err);
         Err(err)

src/error.rs

@@ -13,7 +13,7 @@ use crate::response::ResponseStatus;
 /// Error enum holding the possible error types
 #[derive(Debug)]
 pub enum Error {
-    Command(ResponseStatus),
+    Command(Box<ResponseStatus>),
     Io(std::io::Error),
     Timeout,
     Xml(Box<dyn StdError + Send + Sync>),