this derivation will be built:
  /nix/store/2hl3vaf6vcq4b0r3cnqhy1fd39i8fjxr-interpolate-conformance.drv
building '/nix/store/2hl3vaf6vcq4b0r3cnqhy1fd39i8fjxr-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok