clone-solana-sysvar is used at run time in 52 crates (of which 3 optionally). It is a direct run-time dependency in 10 crates. It's used only as a dev dependency in 9 crates (of which 3 directly).

Depender (with downloads and own rev deps) clone-solana-sysvar version
310 5 clone-solana-stake-program ^2.2.1
190 19 clone-solana-program ^2.2.1
180 14 clone-solana-program-runtime ^2.2.1
170 3 clone-solana-account-decoder ^2.2.1
160 6 clone-solana-bpf-loader-program ^2.2.1
160 5 clone-solana-system-program ^2.2.1
150 4 clone-spl-token ^2.2.0
360 25 clone-solana-account optional ^2.2.1
220 28 clone-solana-message dev ^2.2.1
180 5 clone-agave-reserved-account-keys dev ^2.2.1
170 1 clone-solana-reserved-account-keys dev ^2.2.1
160 3 clone-solana-loader-v4-program dev ^2.2.1
150 3 clone-solana-svm dev ^2.2.1