these 2 derivations will be built:
  /nix/store/b88dfw6pl3hzx9ikm2vc63gi9wqq8xif-iets-0.1.0.drv
  /nix/store/knkjy054n0i2swc9k0s6mbjv39vc8jhf-iets-langtests.drv
building '/nix/store/knkjy054n0i2swc9k0s6mbjv39vc8jhf-iets-langtests.drv'
iets-langtests> pass=291 fail=0
iets-langtests> 

upload niks3: ok