this derivation will be built:
  /nix/store/46gyf2whzrg0g8m2grslirbk7g3103pq-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/46gyf2whzrg0g8m2grslirbk7g3103pq-bcachefs-module-7.0.0-31-generic.drv'...