these 2 derivations will be built:
  /nix/store/sxlcpib3air789jlwx4821ribr1c6dg9-iets-0.1.0.drv
  /nix/store/7d30j7w7hbwbn2vslq25p0nbddwja82c-iets-langtests.drv
building '/nix/store/7d30j7w7hbwbn2vslq25p0nbddwja82c-iets-langtests.drv'
iets-langtests> pass=291 fail=0
iets-langtests> 

upload niks3: ok