these 2 derivations will be built:
  /nix/store/27hz58zx2csr8gh5axic6i5938j1ydpl-rate4site-3.0.0.orig.tar.gz.drv
  /nix/store/faky5wvvxb82ig95ssajqa3frwn8qn85-rate4site-3.0.0.drv