Fix travis build

.travis.yml

@@ -11,8 +11,15 @@ go:
   - 1.13.x
   - 1.14.x
 
+# Enable Go Modules
+env:
+  - GO111MODULE=on
+
+# Skip go get
+install: true
+
 script:
-  - go test -race -coverprofile=coverage.txt -covermode=atomic -v
+  - go test ./ -race -coverprofile=coverage.txt -covermode=atomic -v
 
 after_success:
   - if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then curl -s https://codecov.io/bash > .codecov && chmod +x .codecov && ./.codecov; else bash <(curl -s https://codecov.io/bash); fi