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
500 3 pi_ws ^0.3
360 pi_async_wsc ^0.3
290 1 pi_mqtt ^0.3
160 pi_mqtt_proxy ^0.3
1 pi_http ^0.3
2 pi_async_httpc dev ^0.3