this derivation will be built:
  /nix/store/4qs5shz2dhi7zgv3972cpa97igg56zbp-vm-test-run-pgrouting.drv
this path will be fetched (3.7 KiB download, 15.0 KiB unpacked):
  /nix/store/z2ynwp6k6bh630108bs48ash8jxrjy20-nixos-test-driver-pgrouting