fast-math is used at run time in 84 crates (of which 3 optionally). It is a direct run-time dependency in 14 crates. It's used only as a dev dependency in 18 crates.

Depender (with downloads and own rev deps) fast-math version
11K 4 solana-merkle-tree ^0.1
500 righor ^0.1
210 1 miraland-merkle-tree ^0.1
140 1 pythnet-sdk ^0.1
140 1 waffles-solana-merkle-tree ^0.1
lc3-codec ^0.1.1
1 gemachain-merkle-tree ^0.1
clustr ^0.1.1
crast ^0.1
1 safecoin-merkle-tree ^0.1
anchor-merkle-tree ^0.1
480 2 adder-codec-rs optional ^0.1
110 rustradio optional ^0.1.1
ovr-vsdb optional ^0.1