W0415 19:00:54.096] **************************************************************************
bootstrap.py is deprecated!
test-infra oncall does not support any job still using bootstrap.py.
Please migrate your job to podutils!
https://github.com/kubernetes/test-infra/blob/master/prow/pod-utilities.md
**************************************************************************
I0415 19:00:54.096] Args: --job=pull-tekton-pipeline-build-tests --service-account=/etc/test-account/service-account.json --upload=gs://kubernetes-jenkins/logs --scenario=kubernetes_execute_bazel --clean --job=pull-tekton-pipeline-build-tests --repo=github.com/tektoncd/pipeline=master:25b244609378fefecd38537bb6e8a2f935647c4f,2355:90f8c56018a4833be85b59a36726d7ab532c6b15 --root=/go/src --service-account=/etc/test-account/service-account.json --upload=gs://tekton-prow/pr-logs -- -- ./test/presubmit-tests.sh --build-tests
I0415 19:00:54.097] Bootstrap pull-tekton-pipeline-build-tests...
I0415 19:00:54.101] Builder: gke-prow-new-pool-25e2ce3a-6nrs
I0415 19:00:54.102] Image: gcr.io/k8s-testimages/kubekins-e2e:v20190729-351ea95-master
I0415 19:00:54.102] Gubernator results at https://gubernator.k8s.io/build/tekton-prow/pr-logs/pull/tektoncd_pipeline/2355/pull-tekton-pipeline-build-tests/1250499296768299009
I0415 19:00:54.102] Call:  gcloud auth activate-service-account --key-file=/etc/test-account/service-account.json
W0415 19:00:54.654] Activated service account credentials for: [prow-account@tekton-releases.iam.gserviceaccount.com]
I0415 19:00:54.710] process 36 exited with code 0 after 0.0m
I0415 19:00:54.710] Call:  gcloud config get-value account
I0415 19:00:55.177] process 50 exited with code 0 after 0.0m
I0415 19:00:55.178] Will upload results to gs://tekton-prow/pr-logs using prow-account@tekton-releases.iam.gserviceaccount.com
I0415 19:00:55.178] Root: /go/src
I0415 19:00:55.178] cd to /go/src
I0415 19:00:55.178] Checkout: /go/src/github.com/tektoncd/pipeline master:25b244609378fefecd38537bb6e8a2f935647c4f,2355:90f8c56018a4833be85b59a36726d7ab532c6b15 to /go/src/github.com/tektoncd/pipeline
I0415 19:00:55.179] Call:  git init github.com/tektoncd/pipeline
I0415 19:00:55.186] Initialized empty Git repository in /go/src/github.com/tektoncd/pipeline/.git/
I0415 19:00:55.186] process 64 exited with code 0 after 0.0m
I0415 19:00:55.186] Call:  git clean -dfx
I0415 19:00:55.190] process 65 exited with code 0 after 0.0m
I0415 19:00:55.190] Call:  git reset --hard
I0415 19:00:55.194] process 66 exited with code 0 after 0.0m
I0415 19:00:55.194] Call:  git config --local user.name 'K8S Bootstrap'
I0415 19:00:55.197] process 67 exited with code 0 after 0.0m
I0415 19:00:55.198] Call:  git config --local user.email k8s_bootstrap@localhost
I0415 19:00:55.201] process 68 exited with code 0 after 0.0m
I0415 19:00:55.201] Call:  git fetch --quiet --tags https://github.com/tektoncd/pipeline master +refs/pull/2355/head:refs/pr/2355
I0415 19:00:58.932] process 69 exited with code 0 after 0.1m
I0415 19:00:58.932] Call:  git checkout -B test 25b244609378fefecd38537bb6e8a2f935647c4f
W0415 19:00:59.578] Switched to a new branch 'test'
I0415 19:00:59.587] process 81 exited with code 0 after 0.0m
I0415 19:00:59.588] Call:  git show -s --format=format:%ct HEAD
I0415 19:00:59.593] process 82 exited with code 0 after 0.0m
I0415 19:00:59.594] Call:  git merge --no-ff -m 'Merge +refs/pull/2355/head:refs/pr/2355' 90f8c56018a4833be85b59a36726d7ab532c6b15
I0415 19:01:00.140] Auto-merging docs/pipelines.md
I0415 19:01:00.140] CONFLICT (content): Merge conflict in docs/pipelines.md
I0415 19:01:00.140] Automatic merge failed; fix conflicts and then commit the result.
E0415 19:01:00.141] Command failed
I0415 19:01:00.141] process 83 exited with code 1 after 0.0m
E0415 19:01:00.141] unexpected error
Traceback (most recent call last):
  File "./test-infra/jenkins/bootstrap.py", line 1096, in bootstrap
  File "./test-infra/jenkins/bootstrap.py", line 981, in setup_root
  File "./test-infra/jenkins/bootstrap.py", line 307, in checkout
  File "./test-infra/jenkins/bootstrap.py", line 1054, in <lambda>
  File "./test-infra/jenkins/bootstrap.py", line 149, in _call
CalledProcessError: Command '['git', 'merge', '--no-ff', '-m', 'Merge +refs/pull/2355/head:refs/pr/2355', '90f8c56018a4833be85b59a36726d7ab532c6b15']' returned non-zero exit status 1
I0415 19:01:00.142] Call:  gcloud auth activate-service-account --key-file=/etc/test-account/service-account.json
W0415 19:01:00.742] Activated service account credentials for: [prow-account@tekton-releases.iam.gserviceaccount.com]
I0415 19:01:00.798] process 84 exited with code 0 after 0.0m
I0415 19:01:00.799] Call:  gcloud config get-value account
I0415 19:01:01.250] process 98 exited with code 0 after 0.0m
I0415 19:01:01.251] Will upload results to gs://tekton-prow/pr-logs using prow-account@tekton-releases.iam.gserviceaccount.com
I0415 19:01:01.251] Upload result and artifacts...
I0415 19:01:01.251] Gubernator results at https://gubernator.k8s.io/build/tekton-prow/pr-logs/pull/tektoncd_pipeline/2355/pull-tekton-pipeline-build-tests/1250499296768299009
W0415 19:01:01.251] Missing local artifacts : /workspace/_artifacts
W0415 19:01:01.251] metadata path /workspace/_artifacts/metadata.json does not exist
W0415 19:01:01.252] metadata not found or invalid, init with empty metadata
I0415 19:01:01.252] Call:  git rev-parse HEAD
I0415 19:01:01.255] process 112 exited with code 0 after 0.0m
I0415 19:01:01.256] Call:  git rev-parse HEAD
I0415 19:01:01.259] process 113 exited with code 0 after 0.0m
I0415 19:01:01.260] Call:  gsutil stat gs://tekton-prow/pr-logs/directory/pull-tekton-pipeline-build-tests/jobResultsCache.json
I0415 19:01:02.531] process 114 exited with code 0 after 0.0m
I0415 19:01:02.532] Call:  gsutil -q cat 'gs://tekton-prow/pr-logs/directory/pull-tekton-pipeline-build-tests/jobResultsCache.json#1586977145152977'
I0415 19:01:03.775] process 258 exited with code 0 after 0.0m
I0415 19:01:03.781] Call:  gsutil -q -h Content-Type:application/json -h x-goog-if-generation-match:1586977145152977 cp /tmp/gsutil_rXT6tQ gs://tekton-prow/pr-logs/directory/pull-tekton-pipeline-build-tests/jobResultsCache.json
I0415 19:01:05.191] process 404 exited with code 0 after 0.0m
I0415 19:01:05.192] Call:  gsutil stat gs://tekton-prow/pr-logs/pull/tektoncd_pipeline/2355/pull-tekton-pipeline-build-tests/jobResultsCache.json
I0415 19:01:06.360] process 584 exited with code 0 after 0.0m
I0415 19:01:06.360] Call:  gsutil -q cat 'gs://tekton-prow/pr-logs/pull/tektoncd_pipeline/2355/pull-tekton-pipeline-build-tests/jobResultsCache.json#1586977149112461'
I0415 19:01:07.663] process 728 exited with code 0 after 0.0m
I0415 19:01:07.664] Call:  gsutil -q -h Content-Type:application/json -h x-goog-if-generation-match:1586977149112461 cp /tmp/gsutil_vnJeUS gs://tekton-prow/pr-logs/pull/tektoncd_pipeline/2355/pull-tekton-pipeline-build-tests/jobResultsCache.json
I0415 19:01:09.201] process 874 exited with code 0 after 0.0m
I0415 19:01:09.202] Call:  gsutil -q -h Content-Type:application/json cp /tmp/gsutil_l6iom6 gs://tekton-prow/pr-logs/pull/tektoncd_pipeline/2355/pull-tekton-pipeline-build-tests/1250499296768299009/finished.json
I0415 19:01:10.600] process 1054 exited with code 0 after 0.0m
I0415 19:01:10.601] Call:  gsutil -q -h Content-Type:text/plain -h 'Cache-Control:private, max-age=0, no-transform' cp /tmp/gsutil_eU4BMv gs://tekton-prow/pr-logs/pull/tektoncd_pipeline/2355/pull-tekton-pipeline-build-tests/latest-build.txt
I0415 19:01:12.074] process 1234 exited with code 0 after 0.0m
I0415 19:01:12.075] Call:  gsutil -q -h Content-Type:text/plain -h 'Cache-Control:private, max-age=0, no-transform' cp /tmp/gsutil_zziNYt gs://tekton-prow/pr-logs/directory/pull-tekton-pipeline-build-tests/latest-build.txt
I0415 19:01:13.542] process 1414 exited with code 0 after 0.0m