message: Add crypto_err test
diff: @@ -386,6 +386,15 @@ mod tests {
  }
  }
  + #[test]
  + fn cyrpto_err_works() {
  + let error = VmError::crypto_err("something went wrong");
  + match error {
  + VmError::CryptoErr { msg, .. } => assert_eq!(msg, "something went wrong"),
  + e => panic!("Unexpected error: {:?}", e),
  + }
  + }
  +
  #[test]
  fn gas_depletion_works() {
  let error = VmError::gas_depletion();
  