this derivation will be built:
  /nix/store/8l041drivdv1nax6fwgyjf98q26c8q3z-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/8l041drivdv1nax6fwgyjf98q26c8q3z-bcachefs-module-7.0.0-39-generic.drv'...