these 2 derivations will be built:
  /nix/store/wjvkkcci4kf6fwfy9k87hwisxfkjfrdl-nix-grpc-store-0.2.3.drv
  /nix/store/q5bw4wfiyc8g9wn76ba3a2lfk46l6i18-nix-grpc-store-exit-stress.drv