/var/empty is an impure reference, and not guaranteed to be present
This means it doesn't work in restricted mode, e.g. on Hydra.
The real fix (apart from fauxpam.nix) is probably in opam2nix?
This means it doesn't work in restricted mode, e.g. on Hydra.
The real fix (apart from fauxpam.nix) is probably in opam2nix?