this derivation will be built:
  /nix/store/f61883q59q7c7j4y7p1ahi6vah7prv2k-interpolate-conformance.drv
building '/nix/store/f61883q59q7c7j4y7p1ahi6vah7prv2k-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok