this derivation will be built:
  /nix/store/nrs38f2n0n97b854gyz5rm5j4m16cy85-interpolate-conformance.drv
building '/nix/store/nrs38f2n0n97b854gyz5rm5j4m16cy85-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok