this derivation will be built:
  /nix/store/d1rj12c0qz8ab8f9p30w6q7vxf9zd17q-interpolate-conformance.drv
building '/nix/store/d1rj12c0qz8ab8f9p30w6q7vxf9zd17q-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok