this derivation will be built:
  /nix/store/j1xw9v5v63pwb0dq15dwv6j5xj33d0iq-interpolate-conformance.drv
building '/nix/store/j1xw9v5v63pwb0dq15dwv6j5xj33d0iq-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok