From 78df16b585709c300c2237cc1d4d7069c03212e1 Mon Sep 17 00:00:00 2001
From: ClementTsang <clementjhtsang@gmail.com>
Date: Mon, 16 Dec 2019 02:31:49 -0500
Subject: [PATCH] Test caching in travis...

---
 .travis.yml | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 15d7aaba..42e16c26 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,6 +13,17 @@ jobs:
   allow_failures:
     - rust: nightly
 
+# From https://levans.fr/rust_travis_cache.html
+# Need to cache the whole `.cargo` directory to keep .crates.toml for
+# cargo-update to work
+cache:
+  directories:
+    - /home/travis/.cargo
+
+# But don't cache the cargo registry
+before_cache:
+  - rm -rf /home/travis/.cargo/registry
+
 GH_TOKEN: &GH_TOKEN
   secure: 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