WIP custody lookup sync #201

Job	Run time
cargo-udeps	6m 55s
basic-simulator-ubuntu	20m 39s
beacon-chain-tests	23m 25s
check-code	5m 17s
check-msrv	4m 33s
cli-check	17m 7s
compile-with-beta-compiler	13m 32s
debug-tests-ubuntu	13m 12s
dockerfile-ubuntu	14m 43s
doppelganger-protection-test	22m 54s
ef-tests-ubuntu	24m 14s
execution-engine-integration-ubuntu	17m 31s
fallback-simulator-ubuntu	18m 27s
network-tests	10m 40s
op-pool-tests	21m 51s
release-tests-ubuntu	22m 16s
slasher-tests	3m 33s
state-transition-vectors-ubuntu	9m 40s
target-branch-check	1s
test-suite-success	1s
	4h 30m 31s

Provide feedback