diff --git a/node/libs/crypto/src/bls12_381/mod.rs b/node/libs/crypto/src/bls12_381/mod.rs
index 02ad6729..53e6ecda 100644
--- a/node/libs/crypto/src/bls12_381/mod.rs
+++ b/node/libs/crypto/src/bls12_381/mod.rs
@@ -230,5 +230,5 @@ pub enum Error {
     SignatureAggregation(BLST_ERROR),
     /// Infinity public key.
     #[error("Error infinity public key")]
-    InvalidInfinityPublicKey
+    InvalidInfinityPublicKey,
 }
diff --git a/node/libs/crypto/src/bls12_381/tests.rs b/node/libs/crypto/src/bls12_381/tests.rs
index 303a9145..5dec71ec 100644
--- a/node/libs/crypto/src/bls12_381/tests.rs
+++ b/node/libs/crypto/src/bls12_381/tests.rs
@@ -1,7 +1,6 @@
 use super::*;
 use rand::{rngs::StdRng, Rng, SeedableRng};
 use std::iter::repeat_with;
-use assert_matches::assert_matches;
 
 // Test signing and verifying a random message
 #[test]
diff --git a/node/libs/crypto/src/bn254/tests.rs b/node/libs/crypto/src/bn254/tests.rs
index 944e1698..d4cd333e 100644
--- a/node/libs/crypto/src/bn254/tests.rs
+++ b/node/libs/crypto/src/bn254/tests.rs
@@ -25,18 +25,19 @@ fn signature_smoke() {
 #[test]
 fn test_decode_zero_secret_key_failure() {
     let mut bytes: [u8; 1000] = [0; 1000];
-    bytes[0]=1; bytes[800]=1;
+    bytes[0] = 1;
+    bytes[800] = 1;
     SecretKey::decode(&bytes).expect_err("Oversized secret key decoded");
 
     let mut bytes: [u8; 33] = [0; 33];
-    bytes[0]=1; bytes[32]=1;
+    bytes[0] = 1;
+    bytes[32] = 1;
     SecretKey::decode(&bytes).expect_err("Oversized 33 bytes secret key decoded");
 
     let bytes: [u8; 31] = [0; 31];
     SecretKey::decode(&bytes).expect_err("Undersized secret key decoded");
 }
 
-
 #[test]
 fn signature_failure_smoke() {
     let mut rng = StdRng::seed_from_u64(29483920);