Fix travis config, add rust to traivs ci

Author: amilajack

.travis.yml

@@ -1,9 +1,56 @@
-language: node_js
+matrix:
+  allow_failures:
+    - os: windows
+  include:
+    - os: osx
+      osx_image: xcode9.4
+      language: rust
+      rust: nightly-2018-10-12
+      env:
+        - TRAVIS_NODE_VERSION="10"
 
-node_js:
-  - node
+    - os: linux
+      language: rust
+      rust: nightly-2018-10-12
+      env:
+        - TRAVIS_NODE_VERSION="10"
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - gcc-multilib
+            - g++-8
+            - g++-multilib
 
-cache: yarn
+    - os: windows
+      language: node_js
+      node_js:
+        - node
+
+    - os: windows
+      language: rust
+      rust: nightly-2018-10-12
+      env:
+        - TRAVIS_NODE_VERSION="10"
+
+cache:
+  yarn: true
+  directories:
+    - node_modules
+    - $(npm config get prefix)/lib/node_modules
 
 before_install:
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then export CXX="g++-8"; fi
+  - nvm install $TRAVIS_NODE_VERSION
+  - nvm use ${TRAVIS_NODE_VERSION}
+  - node -v
+  - npm -v
   - npm i -g yarn@latest
+
+install:
+  - yarn
+
+script:
+  - yarn build
+  - yarn test