[custom channels 3/5]: Extract PART3 from mega staging branch #15818

Job	Run time
cross compilation	11m 51s
lint code	9m 6s
check commits	10m 1s
run macOS itest	53m 19s
check release notes updated	0s
RPC and mobile compilation check	2m 53s
check pinned dependencies (google.golang.org/grpc v1.59.0)	6s
sample configuration check	1m 35s
check pinned dependencies (github.com/golang/protobuf v1.5.3)	4s
Sqlc check	1m 16s
run windows itest	32m 51s
run unit tests (btcd unit-cover)	17m 11s
run unit tests (unit tags="kvdb_etcd")	19m 34s
run ubuntu itests (btcd, backend=btcd cover=1)	31m 14s
run unit tests (unit tags="kvdb_postgres")	18m 34s
run ubuntu itests (bitcoind, backend=bitcoind cover=1)	40m 1s
run unit tests (unit tags="kvdb_sqlite")	16m 53s
run unit tests (btcd unit-race)	37m 8s
run ubuntu itests (bitcoind-notxindex, backend="bitcoind notxindex")	40m 7s
run unit tests (unit-module)	1m 7s
run ubuntu itests (bitcoind-rpcpolling, backend="bitcoind rpcpolling" cover=1)	41m 44s
run ubuntu itests (bitcoind-etcd, backend=bitcoind dbbackend=etcd)	56m 17s
run ubuntu itests (bitcoind-postgres, backend=bitcoind dbbackend=postgres)	1h 12m 40s
run ubuntu itests (bitcoind-sqlite, backend=bitcoind dbbackend=sqlite)	44m 19s
run ubuntu itests (bitcoind-postgres-nativesql, backend=bitcoind dbbackend=postgres nativesql=true)	1h 13m 36s
run ubuntu itests (bitcoind-sqlite-nativesql, backend=bitcoind dbbackend=sqlite nativesql=true)	42m 58s
run ubuntu itests (neutrino, backend=neutrino cover=1)	38m 45s
finish	3s
	11h 55m 13s

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