Add jenkins logs regardless of exit status

hack/jenkins/minikube_cross_build_and_upload.sh

@@ -29,10 +29,15 @@ export GOPATH=/var/lib/jenkins/go
 
 docker kill $(docker ps -q) || true
 docker rm $(docker ps -aq) || true
-
+set +e
 make -j 16 all
+set -e
+
 gsutil cp gs://minikube-builds/logs/index.html gs://minikube-builds/logs/${ghprbPullId}/index.html
 
+# Exit if the cross build failed.
+if [ "$?"-ne 0]; then echo "cross build failed"; exit 1; fi
+
 # If there are ISO changes, build and upload the ISO
 # then set the default to the newly built ISO for testing
 if out="$(git diff ${ghprbActualCommit} --name-only $(git merge-base origin/master ${ghprbActualCommit}) | grep deploy/iso/minikube)" &> /dev/null; then