this derivation will be built:
  /nix/store/amysx4ahym4lkr1hy6n8h8bli8bhm2qk-interpolate-conformance.drv
building '/nix/store/amysx4ahym4lkr1hy6n8h8bli8bhm2qk-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok