this derivation will be built:
  /nix/store/yjg2z3r2h3rc7rm1cvkq2vl4sh882j11-interpolate-conformance.drv
building '/nix/store/yjg2z3r2h3rc7rm1cvkq2vl4sh882j11-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok