Investigate why ci integration test fails for debug target on macOS 

**Describe the bug**
mac OS debug build tends to fail integration test as described in this test source [file](https://github.com/twitter/pelikan/blob/master/src/server/segcache/tests/common.rs) For example, this is a failed run where the key is reported missing while it's expected to exist https://github.com/twitter/pelikan/actions/runs/2757807711/jobs/4342671175
