this derivation will be built:
  /nix/store/53h7pnga985pd21r0d5ng6rq3jpf2gpv-interpolate-conformance.drv
building '/nix/store/53h7pnga985pd21r0d5ng6rq3jpf2gpv-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok