this derivation will be built:
  /nix/store/p9fq706iwxv7fb1qnm1lr17sah8xrx6r-interpolate-conformance.drv
building '/nix/store/p9fq706iwxv7fb1qnm1lr17sah8xrx6r-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-09-01T00:50:59.605Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-09-01T00:51:00.194Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-01T00:51:00.619Z level=INFO msg="Upload complete. (1.313s)"