Fix travis cache configuration

mattico · mattico · commit ebea8c2337a6 · 2018-07-24T17:29:44.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -2,7 +2,7 @@ language: rust
 
 cache: 
   timeout: 360
-  - cargo
+  cargo: true
 
 before_cache:
   - chmod -R a+r $HOME/.cargo
