Obtained 27 stack frames.
/usr/games/crawl-git-ab3808680d(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x600f80be888e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-ab3808680d(_Z20crash_signal_handleri+0x18f) [0x600f80be8cff]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x75fb823dc330]: 
/usr/games/crawl-git-ab3808680d(+0xcd55c1) [0x600f813cb5c1]: 
/usr/games/crawl-git-ab3808680d(+0xcd59a7) [0x600f813cb9a7]: 
/usr/games/crawl-git-ab3808680d(lua_getglobal+0x22) [0x600f813bd032]: 
/usr/games/crawl-git-ab3808680d(_ZN4CLua10pushglobalERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x16d) [0x600f80bccbfd]: CLua::pushglobal(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
/usr/games/crawl-git-ab3808680d(_ZN4CLua6callfnEPKcii+0x80) [0x600f80bcf170]: CLua::callfn(char const*, int, int)
/usr/games/crawl-git-ab3808680d(_Z13do_crash_dumpv+0x1b84) [0x600f80bf8214]: do_crash_dump()
/usr/games/crawl-git-ab3808680d(_Z20crash_signal_handleri+0x1fa) [0x600f80be8d6a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x75fb823dc330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x75fb82435b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x75fb823dc27e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x75fb823bf8ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x75fb823c07b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x75fb8243fff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xab12c) [0x75fb8244212c]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_free+0x7e) [0x75fb82444dae]: 
/usr/games/crawl-git-ab3808680d(+0xcde061) [0x600f813d4061]: 
/usr/games/crawl-git-ab3808680d(+0xccf6b9) [0x600f813c56b9]: 
/usr/games/crawl-git-ab3808680d(+0xcd4b4d) [0x600f813cab4d]: 
/usr/games/crawl-git-ab3808680d(_ZN4CLua5closeEv+0xbe) [0x600f80bcfa8e]: CLua::close()
/usr/games/crawl-git-ab3808680d(+0x2f33a0) [0x600f809e93a0]: 
/usr/games/crawl-git-ab3808680d(+0x2f636c) [0x600f809ec36c]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x75fb823c11ca]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x75fb823c128b]: 
/usr/games/crawl-git-ab3808680d(_start+0x25) [0x600f80b1a605]: