these 2 derivations will be built:
  /nix/store/qarl166d00b36q8lvs9ban0dy9xjyja4-nix-grpc-store-0.2.3.drv
  /nix/store/jhwqqlwplnfjgbr74sd5qbb6cw9ijww4-nix-grpc-store-exit-stress.drv