this derivation will be built:
  /nix/store/j4r21gakrwxlcsbq6sdpm3a0fhr0zhqy-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/j4r21gakrwxlcsbq6sdpm3a0fhr0zhqy-bcachefs-module-7.0.0-29-generic.drv'...