From 10cd358e40377e3f0cb9342a72ffdfcf4631823c Mon Sep 17 00:00:00 2001
From: Nikolay Volf <nikvolf@gmail.com>
Date: Mon, 23 Dec 2019 17:41:43 +0300
Subject: [PATCH] fix warnings in grafana module (#4486)

---
 substrate/utils/grafana-data-source/src/lib.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/substrate/utils/grafana-data-source/src/lib.rs b/substrate/utils/grafana-data-source/src/lib.rs
index 229400066a..86c523cc53 100644
--- a/substrate/utils/grafana-data-source/src/lib.rs
+++ b/substrate/utils/grafana-data-source/src/lib.rs
@@ -71,10 +71,15 @@ pub fn record_metrics_slice(metrics: &[(&str, f32)]) -> Result<(), Error> {
 /// Error type that can be returned by either `record_metrics` or `run_server`.
 #[derive(Debug, derive_more::Display, derive_more::From)]
 pub enum Error {
+	/// Hyper internal error.
 	Hyper(hyper::Error),
+	/// Serialization/deserialization error.
 	Serde(serde_json::Error),
+	/// Http request error.
 	Http(hyper::http::Error),
+	/// Timestamp error.
 	Timestamp(TryFromIntError),
+	/// i/o error.
 	Io(std::io::Error)
 }