inotify-rs | Idiomatic inotify wrapper for the Rust programming language | DevOps library

There are some substantial issues with this library:

• The poor choice of type to represent the inotify watch descriptor. Inotify watch descriptors are not Unix file descriptors, they are just some integral number, scoped per inotify file descriptor. Not a flaw by itself, but I certainly would view that as a red flag.
• As noted above, inotify watch descriptor values are scoped per parent inotify file descriptor. This makes the use of [derive(Eq)] on WatchDescriptor highly questionable. Looks like a straight-up bug.
• There is nothing to ensure that inotify watches are closed before closing the inotify descriptor. There is nothing to ensure that watch descriptors don't get reused behind your back (they can be reused after watch descriptor number wraps). Those issues probably won't bite you immediately, but… IMO, the entire inotify-rs should have been declared unsafe. It does not add any actual safety on top of inotify, just some sugar and pointless wrappers. It does not even implement Drop for the watch descriptor!
• The library does nothing to highlight major gotchas of inotify: event queue overflows, IN_IGNORED and hard links sharing the same inode (and the same inotify watch descriptors!)

I recommend you to carefully read the inotify documentation and write your own wrapper if necessary. This library won't save you any trouble.