A few entries per day are normal, a few dozens or hundreds probably not. Thu Feb 11 01:04:09 UTC 2016 - stale builds found, cleaning db from these: 24406|2016-02-11 00:44|amd64_10/24918 Thu Feb 11 01:04:14 UTC 2016 - stale builds found, cleaning db from these: 64874|2016-02-10 23:25|armhf_20/1812