These crates are written to produce log messages using the error!
macro, but their logs didn't actually go anywhere, which made it very
difficult to debug when they're not working.
I've used env_logger here because it's the same log implementation
that the hypervisor crate uses.
Signed-off-by: Alyssa Ross <hi@alyssa.is>
I don't think the min_values(1) was doing anything, since
takes_value(true) was already set, and after this change I still get
an error if I try to supply the argument with no value.
But the unwrap below would fail if the argument wasn't supplied at
all. By setting required(true) we get a nice message from clap
instead.
Signed-off-by: Alyssa Ross <hi@alyssa.is>
The binary is still built in the same location but the source code and
the dependencies for it come from the vhost_user_block crate itself.
The binary will be built with:
`cargo build --all --bin vhost_user_block` or just `cargo build --all`
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
