Drop registry index cache on CI

jtgeibel · jtgeibel · commit ee058fe0c98b · 2019-11-17T00:07:01.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -6,7 +6,9 @@ cache:
   cargo: true
   directories:
     - $HOME/.npm
-before_cache: script/ci/prune-cache.sh
+before_cache:
+  - script/ci/prune-cache.sh
+  - rm -rf /home/travis/.cargo/registry/index/github.com-1ecc6299db9ec823/.cache
 
 env:
   global:
