const_panic is used at run time in 870 crates (of which 198 optionally). It is a direct run-time dependency in 17 crates. It's used only as a dev dependency in 78 crates.

Depender (with downloads and own rev deps) const_panic version
271K 16 konst ^0.2.6
67K 15 encase ^0.2
51K 38 abi_stable ^0.2.1
7.2K arch-into ^0.2
4.6K 2 aligned-buffer ^0.2
900 8 libafl ^0.2.9
410 nlist ^0.2
320 assert_cfg ^0.2.0
170 const_base ^0.2.7
error_union ^0.2.8
600 1 bilrost optional ^0.2
1 rusty-xed ^0.2.8
geometrid ^0.2.8
atomic_cell ^0.2.4
1 constmuck_internal ^0.2
dungeon-cell ^0.2.0
160 1 swh-graph optional ^0.2.8