these 2 derivations will be built:
  /nix/store/vfgsgyxhwwjjh5fmz6lcpi6cwhs91mms-nix-grpc-store-0.1.0.drv
  /nix/store/n44cvhahmf7s6fgf38iap6if1a58kq2s-nix-grpc-store-exit-stress.drv