pi_tcp is used at run time in 5 crates. It's used only as a dev dependency in 1 crate.

Depender (with downloads and own rev deps) pi_tcp version
180 3 pi_ws ^0.5
170 1 pi_mqtt ^0.5
160 pi_mqtt_proxy ^0.5
150 1 pi_http ^0.5
140 pi_async_wsc ^0.5
160 2 pi_async_httpc dev ^0.5