diff --git a/beacon_chain/types/src/lib.rs b/beacon_chain/types/src/lib.rs
index 65c8b7bce..c70d62555 100644
--- a/beacon_chain/types/src/lib.rs
+++ b/beacon_chain/types/src/lib.rs
@@ -14,11 +14,7 @@ pub mod special_record;
 pub mod validator_record;
 pub mod validator_registration;
 
-use self::ethereum_types::{
-    H256,
-    H160,
-    U256
-};
+use self::ethereum_types::{H160, H256, U256};
 use std::collections::HashMap;
 
 pub use active_state::ActiveState;
diff --git a/beacon_chain/validation/src/attestation_validation.rs b/beacon_chain/validation/src/attestation_validation.rs
index da761432e..e31f3ae52 100644
--- a/beacon_chain/validation/src/attestation_validation.rs
+++ b/beacon_chain/validation/src/attestation_validation.rs
@@ -243,8 +243,9 @@ impl From<SignatureVerificationError> for AttestationValidationError {
                 AttestationValidationError::NoPublicKeyForValidator
             }
             SignatureVerificationError::DBError(s) => AttestationValidationError::DBError(s),
-            SignatureVerificationError::OutOfBoundsBitfieldIndex
-                => AttestationValidationError::OutOfBoundsBitfieldIndex,
+            SignatureVerificationError::OutOfBoundsBitfieldIndex => {
+                AttestationValidationError::OutOfBoundsBitfieldIndex
+            }
         }
     }
-}
\ No newline at end of file
+}
diff --git a/beacon_chain/validation/tests/attestation_validation/tests.rs b/beacon_chain/validation/tests/attestation_validation/tests.rs
index 171d983f5..e4a86b3e0 100644
--- a/beacon_chain/validation/tests/attestation_validation/tests.rs
+++ b/beacon_chain/validation/tests/attestation_validation/tests.rs
@@ -132,7 +132,9 @@ fn test_attestation_validation_invalid_bad_bitfield_length() {
      * We take advantage of the fact that setting a bit outside the current bounds will grow the bitvector.
      */
     let one_byte_higher = rig.attester_count + 8;
-    rig.attestation.attester_bitfield.set(one_byte_higher, false);
+    rig.attestation
+        .attester_bitfield
+        .set(one_byte_higher, false);
 
     let result = rig.context.validate_attestation(&rig.attestation);
     assert_eq!(result, Err(AttestationValidationError::BadBitfieldLength));
@@ -166,11 +168,17 @@ fn test_attestation_validation_invalid_invalid_bitfield_end_bit_with_irreguar_bi
      * bit in a bitfield and the byte length of that bitfield
      */
     let one_bit_high = rig.attester_count + 1;
-    assert!(one_bit_high % 8 != 0, "the test is ineffective in this case.");
+    assert!(
+        one_bit_high % 8 != 0,
+        "the test is ineffective in this case."
+    );
     rig.attestation.attester_bitfield.set(one_bit_high, true);
 
     let result = rig.context.validate_attestation(&rig.attestation);
-    assert_eq!(result, Err(AttestationValidationError::InvalidBitfieldEndBits));
+    assert_eq!(
+        result,
+        Err(AttestationValidationError::InvalidBitfieldEndBits)
+    );
 }
 
 #[test]