switched sleep to 500ms
switched sleep to 500ms

DenisKolodin/mongo-rust-driver-prototype,kyeah/mongo-rust-driver-prototype,mongodb-labs/mongo-rust-driver-prototype,saghm/mongo-rust-driver-prototype,saghm/mongo-rust-driver-prototype,mongodbinc-interns/mongo-rust-driver-prototype,r-arias/mongo-rust-driver-prototype,mongodb-labs/mongo-rust-driver-prototype