this derivation will be built:
  /nix/store/8v8wrk9n66vs0jjnx2br53r19x70r38l-interpolate-conformance.drv
building '/nix/store/8v8wrk9n66vs0jjnx2br53r19x70r38l-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok