these 2 derivations will be built:
  /nix/store/8y1f6iljr4zidan02vmmm1wyzjxcd5nk-nix-grpc-store-0.1.0.drv
  /nix/store/wngl9slw9fgncx5jnf70dx9cg799bwdw-nix-grpc-store-exit-stress.drv