From 00a16db9cde2ff677b636cd21bb231ce67424167 Mon Sep 17 00:00:00 2001
From: kwangin <inylove82@gmail.com>
Date: Thu, 3 May 2018 08:38:09 +0900
Subject: [PATCH] Add comment about rustc version in README

---
 README.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/README.md b/README.md
index 7f4b4f24d..61c7d8dc2 100644
--- a/README.md
+++ b/README.md
@@ -106,6 +106,13 @@ $ source $HOME/.cargo/env
 $ rustup component add rustfmt-preview
 ```
 
+If your rustc version is lower than 1.25.0, please update and install rustfmt:
+
+```bash
+$ rustup update
+$ rustup component add rustfmt-preview
+```
+
 Download the source code:
 
 ```bash