Are the dist-tests failures related to this PR?

I have to check, it seems the error is with dns resolution, which could be because asio does it differently (or if dist-test-server crashes and doesn't print its logs out in the actions worker):

/usr/local/code/faasm/tests/dist/threads/test_pthreads.cpp:9: FAILED:
due to unexpected exception with message:
  Could not resolve host dist-test-server

I can't replicate the crash locally, it seems to come from this call: hostent* record = gethostbyname(hostname.c_str()); which is just the libc DNS resolver. I queued a rerun of dist-tests in case it was a weird failure on actions's side yesterday

It also looks like the conan cache is not actually working in the dist-tests runner

Found it, it's a asio segmentation fault because I didn't copy over the compiler definition to stop it from using RTTI. I'll push a fix in a minute

I have pushed the fix that should work, but locally it doesn't for me - I'm really confused as to why, the crash is in a line that should be defined by a #if !defined(...) and checking the compiler logs that define is passed in the commandline. We'll see if this is just some weird bug with my local setup (though I did do a clean build) or there's something more going on

I have to work on some other things right now, so I'll take a break from debugging this, if you want to try to reproduce this locally, try running dist_test_server from the cli container after building it in debug mode - it should crash with a SIGSEGV after a few seconds.