Fix #7.

.travis.yml

@@ -16,6 +16,8 @@ cache:
 os:
   - linux
   - osx
+    before_install:
+      - export GOPATH=$HOME/go
 
 go:
   - "1.11.x"
@@ -41,7 +43,7 @@ install:
   - "export PATH=$PWD/nim/$NIMVER/bin:$PATH"
   - go get -v github.com/libp2p/go-libp2p-daemon
   - cd $GOPATH/src/github.com/libp2p/go-libp2p-daemon
-  - make
+  - cd $HOME
 
 script:
   - nimble install -y