these 2 derivations will be built:
  /nix/store/sjgglnq7yg5q1cja4yhxcgnpi2nlzkkw-nix-grpc-store-0.1.0.drv
  /nix/store/kp9yqi10agrf2lhjlwf5yn0w4rjdnx2w-nix-grpc-store-exit-stress.drv