this derivation will be built:
  /nix/store/81p6kbdchn62i07xgdi62vxb5q873cla-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/81p6kbdchn62i07xgdi62vxb5q873cla-bcachefs-module-7.0.0-30-generic.drv'...