#53 Adjust travis cache for Rust projects to avoid gig caches and bui…

…ld for multiple archs (#56)

* #53 Adjust travis cache for Rust projects to avoid gig caches

* Attempt to build and test for multiple architectures

* Remove cross compile archs and only deal with travis Rust cache for now

.travis.yml

@@ -1,7 +1,12 @@
 language: rust
-cache: cargo
 rust:
   - 1.32.0
+# hopefully prevent the cache from becoming huge - https://levans.fr/rust_travis_cache.html
+cache:
+  directories:
+    - /home/travis/.cargo
+before_cache:
+  - rm -rf /home/travis/.cargo/registry
 branches:
   only:
     - master