this derivation will be built:
  /nix/store/6i50gx4d5l33jz6li1mc425rjw9yhqz7-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/6i50gx4d5l33jz6li1mc425rjw9yhqz7-bcachefs-module-7.0.0-31-generic.drv'...