this derivation will be built:
  /nix/store/as7ayfxw8q7g8w99cms24g3813w4b9l2-iets-langtests.drv
building '/nix/store/as7ayfxw8q7g8w99cms24g3813w4b9l2-iets-langtests.drv'
iets-langtests> pass=291 fail=0
iets-langtests> 

upload niks3: ok