Gossip checkpoint #516

Job	Run time
lint code	9m 7s
cross compilation	22m 1s
check commits	42m 4s
check pinned dependencies (google.golang.org/grpc v1.56.3)	5s
check pinned dependencies (github.com/golang/protobuf v1.5.3)	5s
check release notes updated	3s
RPC and mobile compilation check	2m 33s
sample configuration check	52s
Sqlc check	22s
run ubuntu itests (btcd, backend=btcd)	36m 58s
run unit tests (btcd unit-cover)	18m 47s
run windows itest	54m 35s
run unit tests (unit tags="kvdb_etcd")	24m 55s
run ubuntu itests (bitcoind, backend=bitcoind)	58m 16s
run unit tests (unit tags="kvdb_postgres")	21m 33s
run ubuntu itests (bitcoind-notxindex, backend="bitcoind notxindex")	59m 27s
run unit tests (unit tags="kvdb_sqlite")	14m 52s
run ubuntu itests (bitcoind-rpcpolling, backend="bitcoind rpcpolling")	59m 5s
run unit tests (btcd unit-race)	47m 28s
run ubuntu itests (bitcoind-etcd, backend=bitcoind dbbackend=etcd)	1h 28m 34s
run unit tests (unit-module)	42s
run ubuntu itests (bitcoind-postgres, backend=bitcoind dbbackend=postgres)	1h 24m 42s
run ubuntu itests (bitcoind-sqlite, backend=bitcoind dbbackend=sqlite)	1h 1m 36s
run ubuntu itests (neutrino, backend=neutrino)	56m 39s
	12h 45m 21s

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