these 2 derivations will be built:
  /nix/store/j0z4dd32y3jc1mk0yjd403ldz2lban42-iets-0.1.0.drv
  /nix/store/frhbslzkp9pznj4rq1lvybg19kw1w3x5-iets-langtests.drv
building '/nix/store/frhbslzkp9pznj4rq1lvybg19kw1w3x5-iets-langtests.drv'
iets-langtests> pass=290 fail=0
iets-langtests> 

upload niks3: ok