Summary:
GitHub commits:

https://github.com/facebook/cachelib/commit/c9d79026a8f4af7947453748b15eb6966d9d6f31
https://github.com/facebook/folly/commit/82ce15a756fc7d9a527ab98723de58fa7b429d0a
https://github.com/facebook/ocamlrep/commit/4025a75d47b947691e63344a7df4c6eaac66fcb3
https://github.com/facebook/rocksdb/commit/212b5bf826637c51e0d2bac3aaed9236599d4de4
https://github.com/facebookincubator/velox/commit/40727a1d2b663cac6ddd86ae39463f76048c6fcf

Reviewed By: jurajh-fb

fbshipit-source-id: 591b8342e38ce0790d1033872adc8f02b21437ec