these 2 derivations will be built:
  /nix/store/s01iry4qk2aprzfhiz8w98rwrpg6vvq9-nix-grpc-store-0.1.0.drv
  /nix/store/7wrv5x0d355cp7vb84jlq13v38gyngw4-nix-grpc-store-exit-stress.drv