Upstream moved to omacom/omasnap and cut 1.21.0 from the same line as 1.20.1, so the version simply increases and no epoch is needed.
check() flushes dirty pages before the smoke suite. The suite fsyncs its working documents under /tmp; on the CI droplets the build leaves about a gigabyte of dirty pages, and the flush that starts a few seconds into the suite made those fsyncs stall past the suite's 5-second settle windows on the first run after every build.
Ryan Hughes
cb59806455