Attempting to inject dll into firefox causes panic

[radiantly]

assertion failed: !injected_module_handle.is_null()
# ...
3: dll_syringe::syringe::LoadLibraryWStub::call
             at dll-syringe-0.17.0\src\syringe.rs:420
4: dll_syringe::syringe::Syringe::inject<ref$<std::path::Path> >
             at dll-syringe-0.17.0\src\syringe.rs:148
5: dll_syringe::syringe::Syringe::find_or_inject<std::path::PathBuf>
             at dll-syringe-0.17.0\src\syringe.rs:180

It looks like this assertion is failing: https://github.com/OpenByteDev/dll-syringe/blob/cdea464ed87644eeead76c998c29a02e80310223/src/syringe.rs#L417-L420