Unable to Detect Whether Error Is Result Of Timeout

[billyb2]

Version
List the version(s) of hyper, and any relevant hyper dependency (such as h2 if this is related to HTTP/2).
h2: v0.3.14
hyper: v0.14.23

Platform
The output of uname -a (UNIX), or version and 32 or 64-bit (Windows)
Linux laptop2 6.2.5-zen1-1.1-zen #1 ZEN SMP PREEMPT_DYNAMIC x86_64 GNU/Linux

Description
While working on a codebase, I needed to detect whether the following error:

hyper::Error(
    Io,
    Kind(
        TimedOut,
    ),
)

has Kind set to timeout. The is_timeout function just checks the Cause, but not the Kind. Kind is also a private variable with no way (that I could find) to get a reference to it. Is there another way to do what I'm trying to do?

[seanmonstar]

Being that hyper says it's an Io error, the Kind is actually from std::io::Error. So, you can grab the source(), downcast to an io::Error, and inspect that.