this derivation will be built:
  /nix/store/hw5h54zyqvsr8j48k3w8ynavhy1fj2pw-interpolate-conformance.drv
building '/nix/store/hw5h54zyqvsr8j48k3w8ynavhy1fj2pw-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-08-28T03:10:51.748Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-28T03:10:52.424Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-28T03:10:52.888Z level=INFO msg="Upload complete. (1.214s)"