this derivation will be built:
  /nix/store/4dcpwrll8a466gc2jkxjwwh94zkdjcz7-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/4dcpwrll8a466gc2jkxjwwh94zkdjcz7-bcachefs-module-7.0.0-28-generic.drv'...