Rust developers have repeatedly raised concerns about an unaddressed privacy issue over the last few years. Rust compiled binaries retain username and home directory paths in production builds. The inadvertent inclusion of metadata such as absolute paths may aid computer forensics experts and the law enforcement as the path could reveal system usernames. The developer also stated that it remains unknown how many developers are unaware that their Rust applications are shipping revealing their system path. The issue is not documented nor there is a way to prevent the behavior.
Source: https://www.bleepingcomputer.com/news/security/most-loved-programming-language-rust-sparks-privacy-concerns/