message: make the flaky test: fullnode_basic_flow stacktrace more useful
  Closes:
  Approved by: wqfish
diff: @@ -736,8 +736,10 @@ fn test_full_node_basic_flow() {
  full_node_client.create_next_account(false).unwrap();
  full_node_client_2.create_next_account(false).unwrap();
  - let mint_result = full_node_client.mint_coins(&["mintb", "3", "10"], true);
  - assert!(mint_result.is_ok());
  + full_node_client
  + .mint_coins(&["mintb", "3", "10"], true)
  + .expect("Fail to mint!");
  +
  assert_eq!(
  Decimal::from_f64(10.0),
  Decimal::from_str(&full_node_client.get_balance(&["b", "3"]).unwrap()).ok()
  