Update unsound DrainFilter and RString::retain
An issue was discovered in the abi_stable crate before 0.9.1 for Rust. A retain call can create an invalid UTF-8 string, violating soundness.
Advisories for Cargo/Abi_stable package
2021
Update unsound DrainFilter and RString::retain
An issue was discovered in the abi_stable crate before 0.9.1 for Rust. DrainFilter lacks soundness because of a double drop.