Fallible collections

[deven96]

Vectors, Hashmaps, e.t.c all implicitly fail whenever allocations fail. We are already capping the global allocations using cap, fallible collections would then ensure we don't panic but rather surface the allocation errors

[deven96]

It wouldn't be practical or possible to make every datastructure we use fallible, so how about we wrap critical client parts in an std::panic::catch_unwind to ensure that if we ever do massive allocations, we are able to report errors from there back to the client