this derivation will be built:
  /nix/store/rv468ll8fxqjswx1a2yqsv0jxc3hami7-bcachefs-module-7.0.0-26-generic.drv
building '/nix/store/rv468ll8fxqjswx1a2yqsv0jxc3hami7-bcachefs-module-7.0.0-26-generic.drv'...