this derivation will be built:
  /nix/store/rph2irm65bhzg12v764aldxc13pf9c49-check-aionui.drv
rph2irm65bhzg12v764aldxc13pf9c49-check-aionui.drv: bld4: not scheduled here: rph2irm65bhzg12v764aldxc13pf9c49-check-aionui.drv, asking the scheduler again