a few more quick changes and another range loop ignore

beacon_chain/utils/ssz/src/decode.rs

@@ -1,3 +1,5 @@
+#![cfg_attr(not(feature = "clippy"), allow(needless_range_loop))]
+
 use super::{
     LENGTH_BYTES,
 };
@@ -79,7 +81,7 @@ pub fn decode_length(bytes: &[u8], index: usize, length_bytes: usize)
     let mut len: usize = 0;
     for i in index..index+length_bytes {
         let offset = (index+length_bytes - i - 1) * 8;
-        len = ((bytes[i] as usize) << offset) | len;
+        len |= (bytes[i] as usize) << offset;
     };
     Ok(len)
 }

beacon_chain/utils/ssz/src/encode.rs

@@ -1,15 +1,9 @@
 #![cfg_attr(not(feature = "clippy"), allow(needless_range_loop))]
 
 use super::{
-    LENGTH_BYTES,
-    MAX_LIST_SIZE,
+    LENGTH_BYTES
 };
 
-#[derive(Debug)]
-pub enum EncodeError {
-    ListTooLong,
-}
-
 pub trait Encodable {
     fn ssz_append(&self, s: &mut SszStream);
 }

beacon_chain/utils/ssz/src/impl_decode.rs

@@ -53,11 +53,10 @@ impl Decodable for H256 {
         -> Result<(Self, usize), DecodeError>
     {
         if bytes.len() < 32 || bytes.len() - 32 < index {
-            return Err(DecodeError::TooShort)
+            Err(DecodeError::TooShort)
         }
         else {
-            return Ok((H256::from(&bytes[index..(index + 32)]),
-                       index + 32));
+            Ok((H256::from(&bytes[index..(index + 32)]), index + 32))
         }
     }
 }