Using Docker executor with image buildstream/testsuite-debian:9-5da27168-32c47d1c ...
Pulling docker image buildstream/testsuite-debian:9-5da27168-32c47d1c ...
Using docker image sha256:b7aa87c2ff015b1398d182bb42846d20aab885720415469347034e7559241daa for buildstream/testsuite-debian:9-5da27168-32c47d1c ...
section_start:1546884107:prepare_script
Running on runner-a334e492-project-1975139-concurrent-0 via runner-a334e492-gitlab-runner-autoscale-1546882110-ad3b3ba4...
section_end:1546884109:prepare_script
section_start:1546884109:get_sources
Fetching changes...
HEAD is now at 8521d7e1 WIP: Make uploading of build trees configurable
Checking out 4fdace54 as raoul/802-refactor-artifactcache...
fatal: reference is not a tree: 4fdace5439022e81bfb24add53af9abd06050751
section_end:1546884110:get_sources
section_start:1546884110:upload_artifacts_on_failure
section_end:1546884112:upload_artifacts_on_failure
ERROR: Job failed: exit code 1