Example: https://github.com/quininer/x11-clipboard on commit 54096beb:
cargo audit doesn't report any issues
cargo audit --deny warnings reports error: 1 denied warning found! - a soundness issue
This often results in the awkward situation that i run audit locally, see no issues and push but later get an email about failing CI (because i deny warns on CI).
I think this is a bug but I've run into this many times yet haven't seen anybody else complain about it so maybe it's intentional? I don't see any benefit to doing this and I think hiding issues from devs by default is a bad idea.