Nightly build/test failure - 2026-08-21

## Nightly Failure Report

**Run**: https://github.com/kvcache-ai/Mooncake/actions/runs/32501401480
**Branch**: refs/heads/main
**Timestamp**: 2026-08-21T17:01:44.981Z

Please investigate the failed jobs in the workflow run linked above.

Start with the failed jobs and logs in workflow run 32501401480 for the main branch, then trace the reported failure to the relevant build or test entry point. Done means identifying the cause, applying a fix if needed, and confirming that the affected jobs pass in a new run.

Written by the indexing model from the issue text.