It's used only as a dev dependency in 7 crates.

Depender (with downloads and own rev deps) proptest-arbitrary-interop version
7.8K 37 soroban-sdk dev ^0.1.0
500 4 twenty-first dev ^0.1
480 5 golem-wasm-rpc dev ^0.1.0
470 2 triton-vm dev ^0.1
150 serial-num dev ~0.1
110 triton-tui dev ^0.1
guv dev ^0.1