this derivation will be built:
  /nix/store/7qrz0gjl3fdjr83skl900d8fcf175v9g-interpolate-conformance.drv
building '/nix/store/7qrz0gjl3fdjr83skl900d8fcf175v9g-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-08-24T19:21:21.387Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-24T19:21:22.535Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-24T19:21:22.940Z level=INFO msg="Upload complete. (1.62s)"