leveldb-sys is used at run time in 25 crates (of which 3 optionally). It is a direct run-time dependency in 7 crates. It's used only as a dev dependency in 1 crate.

Depender (with downloads and own rev deps) leveldb-sys version
37K 15 leveldb ^2.0.0
2.0K 1 rs-leveldb ^2.0.0
1 hala-leveldb ^2.0.9
leveldb_minimal ^2.0.0
neptune-cash ^2.0.9
exonum_leveldb ^2.0.1
1 leveldb-rs ^2.0.1