this derivation will be built:
  /nix/store/mkks4s3q1c6xi71vi5zzklviida7g7gp-bcachefs-module-7.0.0-14-generic.drv
building '/nix/store/mkks4s3q1c6xi71vi5zzklviida7g7gp-bcachefs-module-7.0.0-14-generic.drv'...