jupnet-sysvar-id is used at run time in 5 crates (of which 5 optionally).

Depender (with downloads and own rev deps) jupnet-sysvar-id version
3 jupnet-clock optional =2.1.6
jupnet-epoch-schedule optional =2.1.6
jupnet-last-restart-slot optional =2.1.6
jupnet-rent optional =2.1.6
jupnet-slot-hashes optional =2.1.6