these 2 derivations will be built:
  /nix/store/8ghqvv3x59xzr6ni4vwpmjhp7zz6kx6j-nix-grpc-store-0.2.2.drv
  /nix/store/ws8sr7wlrk4dp3h8ywr3pnhgsvb93vhg-nix-grpc-store-exit-stress.drv