serde_nanos is used at run time in 116 crates (of which 40 optionally). It is a direct run-time dependency in 5 crates. It's used only as a dev dependency in 5 crates.

Depender (with downloads and own rev deps) serde_nanos version
171K 61 async-nats ^0.1.3
50K 28 nats ^0.1.1
nats-aflowt ^0.1.1
nightly-async-nats ^0.1.1
async-nats-wrpc ^0.1.3