From 0612ebfbf6d4116a2812864dcf9ce5f0f16d1b23 Mon Sep 17 00:00:00 2001
From: Michael Bryan <michaelfbryan@gmail.com>
Date: Tue, 27 Aug 2019 14:21:22 +0800
Subject: [PATCH] Made sure travis caches mdbook-linkcheck's cache file

---
 src/doc/rustc-dev-guide/.travis.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/doc/rustc-dev-guide/.travis.yml b/src/doc/rustc-dev-guide/.travis.yml
index bd72a03fc0ba..8fa2f0c1df1a 100644
--- a/src/doc/rustc-dev-guide/.travis.yml
+++ b/src/doc/rustc-dev-guide/.travis.yml
@@ -3,6 +3,8 @@ rust:
 - nightly
 cache:
 - cargo
+- directories:
+  - book/linkcheck/
 before_install:
 - shopt -s globstar
 - MAX_LINE_LENGTH=100 bash ci/check_line_lengths.sh src/**/*.md