these 2 derivations will be built:
  /nix/store/iddvj9mickd6k7pwprp6lyzyfi9xmcv4-nix-grpc-store-0.1.0.drv
  /nix/store/zq6ha3d39nsl8sfzbl1xl1dwpzcfd013-nix-grpc-store-exit-stress.drv