this derivation will be built:
  /nix/store/95wasqq3w51xpjwrrwwwb28jqsr2yrzq-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/95wasqq3w51xpjwrrwwwb28jqsr2yrzq-bcachefs-module-7.0.0-39-generic.drv'...