index_list is used at run time in 118 crates (of which 1 optionally). It is a direct run-time dependency in 4 crates. It's used only as a dev dependency in 123 crates.

Depender (with downloads and own rev deps) index_list version
17K 53 solana-runtime ^0.2.7
330 20 miraland-runtime ^0.2.7
160 18 waffles-solana-runtime ^0.2.7
11 safecoin-runtime ^0.2.7