these 2 derivations will be built:
  /nix/store/lcr5r8iphs213gscgdk7fdndzl21l3z4-nix-grpc-store-0.2.3.drv
  /nix/store/s0iylc49fdzcni6h6ml14ldqv14dm8i3-nix-grpc-store-exit-stress.drv