this derivation will be built:
  /nix/store/a7b5lfwd4ykn82s4ym6p1yr9frq0x7ap-interpolate-conformance.drv
building '/nix/store/a7b5lfwd4ykn82s4ym6p1yr9frq0x7ap-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok