As I understand it, that as_raw_fd() issue is a big reason that they added the BorrowedFd<'_> type [0] and corresponding AsFd trait in 1.63.0, to prevent the ra

As I understand it, that as_raw_fd() issue is a big reason that they added the BorrowedFd<'_> type [0] and corresponding AsFd trait in 1.63.0, to prevent the raw file descriptor from outliving its logical owner. Still, I agree that there is lots of potential for issues on the boundary between Rust's implicit lifetime management vs. C APIs' explicit lifetime management, since there won't always be a convenient preexisting mechanism to bridge the gap. [0] https://doc.rust-lang.org/std/os/fd/struct.BorrowedFd.html https://doc.rust-lang.org/std/os/fd/struct.BorrowedFd.html