memalloc is used at run time in 88 crates (of which 71 optionally). It is a direct run-time dependency in 5 crates. It's used only as a dev dependency in 8 crates.

Depender (with downloads and own rev deps) memalloc version
37K 22 default-net ^0.1.0
19K 14 netdev ^0.1.0
appendbuf ^0
rust-wasm-prelude ^0.1.0
wasm-rust-utils ^0.1.0