Core dump in resolver.c when shutting down.
Job #637123 failed for 4e2ac5f6:
05-Feb-2020 08:49:12.254 resolver.c:9813: INSIST(((res->dbuckets[i].list).head == ((void *)0))) failed, back trace
05-Feb-2020 08:49:12.254 #0 0x5620b7b6cc74 in ??
05-Feb-2020 08:49:12.254 #1 0x7f7c47de1857 in ??
05-Feb-2020 08:49:12.254 #2 0x7f7c48318728 in ??
05-Feb-2020 08:49:12.254 #3 0x7f7c48352808 in ??
05-Feb-2020 08:49:12.254 #4 0x7f7c4835345d in ??
05-Feb-2020 08:49:12.254 #5 0x7f7c4835355c in ??
05-Feb-2020 08:49:12.254 #6 0x7f7c47e06159 in ??
05-Feb-2020 08:49:12.254 #7 0x7f7c47699fa3 in ??
05-Feb-2020 08:49:12.254 #8 0x7f7c475ac4cf in ??
05-Feb-2020 08:49:12.254 exiting (due to assertion failure)Artifacts saved. core dump present (rpzrecurs/ns3/core.7909).