Go to https://logs.chromium.org/logs/chromium/buildbucket/cr-buildbucket.appspot.com/8928796684786727408/+/steps/compare_build_artifacts/0/stdout , click "Switch to full mode".

Note that the timestamps start somewhere before the command starts to run, when the recipe still prints what it's about to run, and the jumps in execution time don't match up with anything interesting happening during execution.