this derivation will be built:
  /nix/store/irmfw8l0v2hd9kl10r38li70hzghk1x9-interpolate-conformance.drv
building '/nix/store/irmfw8l0v2hd9kl10r38li70hzghk1x9-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok