use goproxy

Signed-off-by: Miguel Molina <[email protected]>

Author: erizocosmico

Diff for: .travis.yml

@@ -4,7 +4,7 @@ go_import_path: github.com/src-d/gitbase
 go: 1.12.x
 
 env:
-  - GO111MODULE=on
+  - GO111MODULE=on GOPROXY=https://proxy.golang.org
 
 matrix:
   fast_finish: true

Diff for: Dockerfile

@@ -14,6 +14,7 @@ WORKDIR $GITBASE_PATH
 ENV GO_BUILD_ARGS="-o /bin/gitbase"
 ENV GO_BUILD_PATH="./cmd/gitbase"
 ENV GO111MODULE=on
+ENV GOPROXY=https://proxy.golang.org
 
 RUN make static-build