this derivation will be built:
  /nix/store/r2y68mvsxw96cz0wdpjvp0868aii2w5i-interpolate-conformance.drv
building '/nix/store/r2y68mvsxw96cz0wdpjvp0868aii2w5i-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok