this derivation will be built:
  /nix/store/psn6l0cmjyyqjhqs5q2mnrcf198p0sp8-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/psn6l0cmjyyqjhqs5q2mnrcf198p0sp8-bcachefs-module-7.0.0-38-generic.drv'...