It's used at build time in 20 crates (of which 17 optionally, 1 directly).

Number of dependers foundationdb-gen version Downloads/month
13 0.9.1 6.9K
0 0.9.0 563K
6 0.8.0 500
1 0.7.0 370
Depender (with downloads and own rev deps) foundationdb-gen version
571K 10 foundationdb build ^0.9.1