this derivation will be built:
  /nix/store/mq5fgwizy9ms6lbh0ndl4lbivn1b6m8p-interpolate-conformance.drv
building '/nix/store/mq5fgwizy9ms6lbh0ndl4lbivn1b6m8p-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok