fixed merging errors

Author: majabbour

program/rust/build.rs

@@ -5,18 +5,12 @@ use std::vec::Vec;
 fn main() {
     println!("cargo:rustc-link-search=../c/target");
 
-    let borsh_derives: Vec<String> =
-        vec!["BorshSerialize".to_string(), "BorshDeserialize".to_string()];
-
     let borsh_derives = ["BorshSerialize".to_string(), "BorshDeserialize".to_string()];
 
     //make a parser and to it type, traits pairs
     let mut parser = build_utils::DeriveAdderParserCallback::new();
     parser.register_traits("cmd_hdr", borsh_derives.to_vec());
     parser.register_traits("pc_acc", borsh_derives.to_vec());
-    //make a parser and to it type, traits pairs
-    let mut parser = build_utils::DeriveAdderParserCallback::new();
-    parser.register_traits("cmd_hdr", borsh_derives);
 
     //generate and write bindings
     let bindings = Builder::default()

program/rust/build_utils.rs

@@ -1,7 +1,6 @@
 use bindgen::callbacks::ParseCallbacks;
 use std::collections::HashMap;
 use std::panic::UnwindSafe;
-use std::panic::UnwindSafe;
 
 ///This type stores a hashmap from structnames
 ///to vectors of trait names, and ensures