this derivation will be built:
  /nix/store/pyxb7pblixq4l3j6vmn62v88j8lnzpdl-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/pyxb7pblixq4l3j6vmn62v88j8lnzpdl-bcachefs-module-7.0.0-28-generic.drv'...