fix warnings

src/hash.rs

@@ -172,7 +172,6 @@ fn trim_hex_prefix(str: &str) -> &str {
 pub mod test {
     use super::*;
     use hex_literal::hex;
-    use proptest::proptest;
     use serde_json::{from_str, to_string};
 
     #[test]
@@ -212,14 +211,4 @@ pub mod test {
             ))
         );
     }
-
-    #[test]
-    fn test_roundtrip() {
-        proptest!(|(bytes: [u8; 32])| {
-            let hash = Hash(bytes);
-            let json = to_string(&hash).unwrap();
-            let parsed = from_str(&json).unwrap();
-            assert_eq!(hash, parsed);
-        });
-    }
 }

src/main.rs

@@ -8,8 +8,7 @@ mod util;
 use hash::*;
 use hex_literal::hex;
 use identity::*;
-use num_bigint::{BigInt, Sign};
-use poseidon_rs::Poseidon;
+use num_bigint::{BigInt};
 use poseidon_tree::*;
 use protocol::*;
 

src/merkle_tree.rs

@@ -158,6 +158,7 @@ impl<H: Hasher> MerkleTree<H> {
         proof.root(hash) == self.root()
     }
 
+    #[allow(dead_code)]
     pub fn leaves(&self) -> &[H::Hash] {
         &self.nodes[(self.num_leaves() - 1)..]
     }