mip64el + qemu + debian + openjdk = AIOOB in NativeThreadSet?

[Charles Oliver Nutter]

I'm trying to automate the native builds for the Java Native Runtime's
JFFI backend stub library, but running into issues running the
necessary build commands on our qemu + debian rig.

The PR I'm working on is here:

https://github.com/jnr/jffi/pull/124

Link to the failure output:

https://github.com/jnr/jffi/runs/5840650831?check_suite_focus=true#step:10:747

Note that this is just running the "ant jar" target for the jnr/jffi
project and does not get into the actual FFI library.

What can I do to help figure out the problem here?

- Charles