these 2 derivations will be built:
  /nix/store/fz2ww68dxap068042qvg5sbqymmvidv8-nix-grpc-store-0.1.0.drv
  /nix/store/ybiqnjy9r7lhzvxyj89ar1jnifpvm597-nix-grpc-store-exit-stress.drv