Merge pull request #255 from Emurgo/chore/fix-build-warnings

Fix build warnings

Author: vsubhuman

rust/src/address.rs

@@ -440,7 +440,7 @@ impl Address {
             None => {
                 // see CIP5 for bech32 prefix rules
                 let prefix_header = match &self.0 {
-                    AddrType::Reward(a) => "stake",
+                    AddrType::Reward(_) => "stake",
                     _ => "addr",
                 };
                 let prefix_tail = match self.network_id()? {

rust/src/crypto.rs

@@ -588,7 +588,7 @@ impl Deserialize for BootstrapWitness {
 }
 
 impl DeserializeEmbeddedGroup for BootstrapWitness {
-    fn deserialize_as_embedded_group<R: BufRead + Seek>(raw: &mut Deserializer<R>, len: cbor_event::Len) -> Result<Self, DeserializeError> {
+    fn deserialize_as_embedded_group<R: BufRead + Seek>(raw: &mut Deserializer<R>, _: cbor_event::Len) -> Result<Self, DeserializeError> {
         let vkey = (|| -> Result<_, DeserializeError> {
             Ok(Vkey::deserialize(raw)?)
         })().map_err(|e| e.annotate("vkey"))?;
@@ -953,7 +953,6 @@ impl cbor_event::se::Serialize for Nonce {
 
 impl Deserialize for Nonce {
     fn deserialize<R: std::io::BufRead>(raw: &mut Deserializer<R>) -> Result<Self, DeserializeError> {
-        use std::convert::TryInto;
         (|| -> Result<Self, DeserializeError> {
             let len = raw.array()?;
             let hash = match raw.unsigned_integer()? {

rust/src/error.rs

@@ -1,5 +1,4 @@
-use cbor_event::{self, de::Deserializer, se::{Serialize, Serializer}};
-use std::io::{BufRead, Seek, Write};
+use cbor_event::{self};
 use crate::chain_crypto;
 use super::*;