box-counter is used at run time in 25 crates (of which 3 optionally). It is a direct run-time dependency in 3 crates.

Depender (with downloads and own rev deps) box-counter version
600 5 rust-box optional ^0.3.0
500 1 handy-grpc optional ^0.3
260 1 task-exec-queue optional ^0.3