this derivation will be built:
  /nix/store/n35b98sh6gv1cipsk87bn6cq8daf2ihv-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/n35b98sh6gv1cipsk87bn6cq8daf2ihv-bcachefs-module-7.0.0-38-generic.drv'...