these 2 derivations will be built:
  /nix/store/5y92263n5mpwd9b4sl7jdcb86i7as6fd-iets-0.1.0.drv
  /nix/store/mns2m4aglx19vmc29gihn939nl0glv6s-iets-langtests.drv
building '/nix/store/mns2m4aglx19vmc29gihn939nl0glv6s-iets-langtests.drv'
iets-langtests> pass=290 fail=0
iets-langtests> 

upload niks3: ok