this derivation will be built:
  /nix/store/b666nw3vqa9kmzlhgg8cw0al7d9n814g-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/b666nw3vqa9kmzlhgg8cw0al7d9n814g-bcachefs-module-7.0.0-39-generic.drv'...