this derivation will be built:
  /nix/store/rzya8lh9yzw3yf25912lsf7xc1vz0dq2-interpolate-conformance.drv
building '/nix/store/rzya8lh9yzw3yf25912lsf7xc1vz0dq2-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok