these 2 derivations will be built:
  /nix/store/grv9m4wmblz1a35fl9p66cn8pw6c6pad-iets-0.1.0.drv
  /nix/store/mwg7ki7qy7mv2hc176prpcqzyl7iplml-iets-langtests.drv
building '/nix/store/mwg7ki7qy7mv2hc176prpcqzyl7iplml-iets-langtests.drv'
iets-langtests> pass=291 fail=0
iets-langtests> 

upload niks3: ok