this derivation will be built:
  /nix/store/k6v6fs3smn9nsmq550b0d2b59bvynn4v-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/k6v6fs3smn9nsmq550b0d2b59bvynn4v-bcachefs-module-7.0.0-38-generic.drv'...