#2783 triggered an internal compiler error in the aarch64 compiler. E.g. this run. I haven't been able to fix it, so I've just disabled the test for now. We have aarch64 coverage of the main binary in GitHub Actions here. What we're missing is the build of the other binaries covered by make allzstd.

Alternatively, make allzstd could be covered by the QEMU tests in GitHub Actions. But, I had some issues with linking in the naive attempt, so I haven't done it yet.