GHSA-X43W-PH7M-PFJX hexchat crate has a Use After Free vulnerability

All versions of this crate have function deregistercommand which can result in use after free. This is unsound. In addition, all versions since 0.3.0 have "safe" macros, which are documented as unsafe to use in threads. In addition, the hexchat crate is no longer actively maintained. If users rel...