fast-math is used at run time in 93 crates (of which 4 optionally). It is a direct run-time dependency in 14 crates. It's used only as a dev dependency in 19 crates.

Depender (with downloads and own rev deps) fast-math version
12K 4 solana-merkle-tree ^0.1
3.5K 1 pythnet-sdk ^0.1
1.1K 1 miraland-merkle-tree ^0.1
230 righor ^0.1
1 waffles-solana-merkle-tree ^0.1
1 safecoin-merkle-tree ^0.1
clustr ^0.1.1
anchor-merkle-tree ^0.1
crast ^0.1
lc3-codec ^0.1.1
1 gemachain-merkle-tree ^0.1
rustradio optional ^0.1.1
2 adder-codec-rs optional ^0.1
ovr-vsdb optional ^0.1