this derivation will be built:
  /nix/store/dd909sda5v92hvs002ds84zzgs8kkkbh-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/dd909sda5v92hvs002ds84zzgs8kkkbh-bcachefs-module-7.0.0-29-generic.drv'...