this derivation will be built:
  /nix/store/cpa1k93ml01kp2p9s07jy52pbzl6iv9f-interpolate-conformance.drv
building '/nix/store/cpa1k93ml01kp2p9s07jy52pbzl6iv9f-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok