this derivation will be built:
  /nix/store/405rxc023v4bi2l2a6wpdz9213b0d1k4-interpolate-conformance.drv
building '/nix/store/405rxc023v4bi2l2a6wpdz9213b0d1k4-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok