this derivation will be built:
  /nix/store/f22cqprbhraca0jxshg4iw6rnzan3wf4-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/f22cqprbhraca0jxshg4iw6rnzan3wf4-bcachefs-module-7.0.0-29-generic.drv'...