It's used at build time in 20 crates (5 directly).

Number of dependers protobuf-build version Downloads/month
1 0.15.1 11K
12 0.14.1 14K
7 0.12.3 750
Depender (with downloads and own rev deps) protobuf-build version
15K 3 raft-proto build ^0.14
3 tikv-client-proto build ^0.12
mmdb-grpc build ^0.14
3 surrealdb-tikv-client-proto build ^0.14
nova-api build ^0.15