these 2 derivations will be built:
  /nix/store/zlhx72mrh7nwbk33bmna7dd40grblck0-iets-0.1.0.drv
  /nix/store/1a7da19xjfm2vhchgk43sainaxg1qlr3-iets-langtests.drv
building '/nix/store/1a7da19xjfm2vhchgk43sainaxg1qlr3-iets-langtests.drv'
iets-langtests> pass=290 fail=0
iets-langtests> 

upload niks3: ok