this derivation will be built:
  /nix/store/b8a8nib81b6059k0rk0w74r1a2jim4wk-interpolate-conformance.drv
building '/nix/store/b8a8nib81b6059k0rk0w74r1a2jim4wk-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok