diff --git a/.travis.yml b/.travis.yml
index 86579a33..a7d146a5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,7 +9,7 @@ branches:
 language: go
 
 go:
-  - 1.11.6
+  - 1.12.x
 
 env:
   - KUBECONFIG=${HOME}/.kube/config PATH=$HOME/k8scli:$HOME/tool:$HOME/google-cloud-sdk/bin:${PATH} GO111MODULE=on DOCKER_CACHE_DIR=${HOME}/docker/
diff --git a/cmd/builder/Dockerfile.fission-builder b/cmd/builder/Dockerfile.fission-builder
index fb9afc4c..e57ff1c8 100644
--- a/cmd/builder/Dockerfile.fission-builder
+++ b/cmd/builder/Dockerfile.fission-builder
@@ -1,7 +1,7 @@
 FROM alpine:3.10 as base
 RUN apk add --update ca-certificates
 
-FROM golang:1.11-alpine as fission-builder
+FROM golang:1.12-alpine as fission-builder
 RUN apk add bash ca-certificates git gcc g++ libc-dev
 
 ARG GOPKG=github.com/fission/fission
diff --git a/cmd/fetcher/Dockerfile.fission-fetcher b/cmd/fetcher/Dockerfile.fission-fetcher
index d1e62967..6ac5a87f 100644
--- a/cmd/fetcher/Dockerfile.fission-fetcher
+++ b/cmd/fetcher/Dockerfile.fission-fetcher
@@ -1,7 +1,7 @@
 FROM alpine:3.10 as base
 RUN apk add --update ca-certificates
 
-FROM golang:1.11-alpine as builder
+FROM golang:1.12-alpine as builder
 RUN apk add bash ca-certificates git gcc g++ libc-dev
 
 ARG GOPKG=github.com/fission/fission
diff --git a/cmd/fission-bundle/Dockerfile.fission-bundle b/cmd/fission-bundle/Dockerfile.fission-bundle
index ab928a94..66cebab4 100644
--- a/cmd/fission-bundle/Dockerfile.fission-bundle
+++ b/cmd/fission-bundle/Dockerfile.fission-bundle
@@ -1,7 +1,7 @@
 FROM alpine:3.10 as base
 RUN apk add --update ca-certificates
 
-FROM golang:1.11-alpine as builder
+FROM golang:1.12-alpine as builder
 RUN apk add bash ca-certificates git gcc g++ libc-dev
 
 ARG GOPKG=github.com/fission/fission
diff --git a/hack/verify-govet.sh b/hack/verify-govet.sh
index 1bc47deb..eef824d5 100755
--- a/hack/verify-govet.sh
+++ b/hack/verify-govet.sh
@@ -4,12 +4,4 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-find_files() {
-  find . -not \( \
-      \( \
-        -wholename '*/vendor/*' \
-      \) -prune \
-    \) -name '*.go'
-}
-
-find_files | xargs -I@ bash -c "go tool vet @"
+go vet -v $(go list ./...| grep -v vendor)
diff --git a/pkg/executor/executor.go b/pkg/executor/executor.go
index d0663756..815297ec 100644
--- a/pkg/executor/executor.go
+++ b/pkg/executor/executor.go
@@ -128,9 +128,7 @@ func (executor *Executor) serveCreateFuncServices() {
 				// It normally happened if there are multiple requests are
 				// waiting for the same function and executor failed to cre-
 				// ate service for function.
-				err = errors.Wrapf(err, "error getting service for function",
-					zap.String("function_name", m.Name),
-					zap.String("function_namespace", m.Namespace))
+				err = errors.Wrapf(err, "error getting service for function %v in namespace %v", m.Name, m.Namespace)
 				req.respChan <- &createFuncServiceResponse{
 					funcSvc: fsvc,
 					err:     err,