this derivation will be built:
  /nix/store/71ik500yzq95w3g5dyvl1lasnx7v1i72-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/71ik500yzq95w3g5dyvl1lasnx7v1i72-bcachefs-module-7.0.0-38-generic.drv'...