this derivation will be built:
  /nix/store/k26c2pylalflccfl2lsg83871s87zj67-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/k26c2pylalflccfl2lsg83871s87zj67-bcachefs-module-7.0.0-29-generic.drv'...