these 2 derivations will be built:
  /nix/store/l71h95lnka6i4hi4x41qf0sy4n500720-iets-0.1.0.drv
  /nix/store/iz3gjj6pnc6rsfwzfb4zna3az5i8zfhx-iets-langtests.drv
building '/nix/store/iz3gjj6pnc6rsfwzfb4zna3az5i8zfhx-iets-langtests.drv'
iets-langtests> pass=291 fail=0
iets-langtests> 

upload niks3: ok