John Ericson
f419ab48e6
Failure: https://hydra.nixos.org/build/205357257/nixlog/1 The problem seems to be trying to `std::visit` a derived class of `std::variant`. Per https://stackoverflow.com/questions/63616709/incomplete-type-stdvariant-used-in-nested-name-specifier certain C++ standard library implementations allow this, but others do not. The solution is simply to call the `raw` method, which upcasts the reference back to the `std::variant`.