this derivation will be built:
  /nix/store/fvnr6symqm5sw8z64ny3p0mh0k7pxvba-interpolate-conformance.drv
building '/nix/store/fvnr6symqm5sw8z64ny3p0mh0k7pxvba-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok