dg_xch_core is used at run time in 6 crates.

Depender (with downloads and own rev deps) dg_xch_core version
230 dg_xch_servers ^2.0.3
2 dg_xch_puzzles ^2.0.3
3 dg_xch_keys ^2.0.3
3 dg_xch_pos ^2.0.3
2 dg_xch_clients ^2.0.3
dg_xch_cli ^2.0.3