Error: Build error: Failed building.

Hello!
I'm not the most experienced programmer, so this may have an easy solution, but whenever I run
`luarocks install https://raw.githubusercontent.com/qassemoquab/stnbhwd/master/stnbhwd-scm-1.rockspec`
It runs for a bit, before coming up with the following error:

> /usr/include/string.h: In function ‘void* __mempcpy_inline(void*, const void*, size_t)’:
/usr/include/string.h:652:42: error: ‘memcpy’ was not declared in this scope
return (char *) memcpy (__dest, __src, __n) + __n;
^
CMake Error at custn_generated_init.cu.o.cmake:266 (message):
Error generating file
/tmp/luarocks_stnbhwd-scm-1-1232/stnbhwd/build/CMakeFiles/custn.dir//./custn_generated_init.cu.o

> CMakeFiles/custn.dir/build.make:63: recipe for target 'CMakeFiles/custn.dir/custn_generated_init.cu.o' failed
make[2]: *** [CMakeFiles/custn.dir/custn_generated_init.cu.o] Error 1
CMakeFiles/Makefile2:104: recipe for target 'CMakeFiles/custn.dir/all' failed
make[1]: *** [CMakeFiles/custn.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2

> Error: Build error: Failed building.

Every other dependency, including GPU support and the pretrained model, seems to install just fine. Any tips?