trait-async is used at run time in 2 crates (of which 1 optionally). It is a direct run-time dependency in 1 crate. It's used only as a dev dependency in 1 crate.

Depender (with downloads and own rev deps) trait-async version
iota-ledger ^0.1.24
120 1 iota-ledger-nano dev ^0.1.24