leveldb-sys is used at run time in 9 crates (6 directly).

Depender (with downloads and own rev deps) leveldb-sys version
11K 5 leveldb ^2.0.0
200 leveldb_minimal ^2.0.0
exonum_leveldb ^2.0.1
leveldb-rs ^2.0.1
peermaps-ingest ^2.0.8
rs-leveldb ^2.0.0