this derivation will be built:
  /nix/store/vmm2z41xigd3p54463nl7g5y41i2gbrr-interpolate-conformance.drv
building '/nix/store/vmm2z41xigd3p54463nl7g5y41i2gbrr-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-08-30T19:03:39.545Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-30T19:03:40.060Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-30T19:03:40.502Z level=INFO msg="Upload complete. (1.185s)"