these 2 derivations will be built:
  /nix/store/gnczzqp98kc60gy0akh17sddjaqs19s9-nix-grpc-store-0.1.0.drv
  /nix/store/qh01ssc1pxwbd7wxlbjik3bppsqd1cgm-nix-grpc-store-exit-stress.drv