this derivation will be built:
  /nix/store/j2ffjccg6nz1y5h31w8y4vj8f6irxglk-interpolate-conformance.drv
building '/nix/store/j2ffjccg6nz1y5h31w8y4vj8f6irxglk-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok