this derivation will be built:
  /nix/store/2is3hgr2bvhnd986pz9wjd91aym8nf27-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/2is3hgr2bvhnd986pz9wjd91aym8nf27-bcachefs-module-7.0.0-38-generic.drv'...