g++10 compilation succeeds but creates problems

[evanberkowitz]

More explicitly:

test_3_solver (tests.test_hubbardFermiMatrix.TestHubbardFermiMatrix)
Test Ax=b solvers. ... [2020-08-07 14:25] Testing solveM on C20
libc++abi.dylib: terminating with uncaught exception of type std::runtime_error: Incompatible buffer format: mismatched elemental data type
Abort trap: 6

and

> python3 fullHMCEvolution.py
libc++abi.dylib: terminating with uncaught exception of type pybind11::stop_iteration:
Abort trap: 6

[jl-wynen]

For context: This is only seems to happen on MacOS. I am not aware of problems with gcc10 on Linux.

The exceptions should have been translated into Python exceptions instead of triggering a termination in C++.
Can you narrow down the source of the error? Right now, I can't see the offending lines in the Python scrips.