this derivation will be built:
  /nix/store/8agznl8xb6f5k9hb2w867g88v8x55fic-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/8agznl8xb6f5k9hb2w867g88v8x55fic-bcachefs-module-7.0.0-28-generic.drv'...