this derivation will be built:
  /nix/store/m9cq52m75b3a99fq2q8wd300r8yvffi6-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/m9cq52m75b3a99fq2q8wd300r8yvffi6-bcachefs-module-7.0.0-29-generic.drv'...