nickamorim

@wbpcode how did you come up with the 300s keepalive time? It seems significantly shorter than the Linux default (2h).

Even with the change proposed by @journaux, the Rust bindings still fail to build. ``` cargo:warning=In file included from /Users/nickamorim/src/github.com/Shopify/CacheLib/cachelib/rust/src/cachelib.h:22:0, cargo:warning= from /Users/nickamorim/src/github.com/Shopify/CacheLib/cachelib/rust/target/debug/build/cachelib-7bbe50bf6a183fab/out/cxxbridge/sources/cachelib/src/lib.rs.cc:1: cargo:warning=/Users/nickamorim/src/github.com/Shopify/CacheLib/cachelib/allocator/CacheAllocator.h:19:10: fatal error: folly/CPortability.h: No such file...