cargo +nightly fmt --all (#1192)

bridges/modules/ethereum/src/verification.rs

@@ -152,6 +152,7 @@ pub fn accept_aura_header_into_pool<S: Storage, CT: ChainTime>(
 	// the heaviest, but rare operation - we do not want invalid receipts in the pool
 	if let Some(receipts) = receipts {
 		log::trace!(target: "runtime", "Got receipts! {:?}", receipts);
+		#[allow(clippy::question_mark)]
 		if header.check_receipts_root(receipts).is_err() {
 			return Err(Error::TransactionsReceiptsMismatch)
 		}