Obtained 40 stack frames.
/usr/games/crawl-git-ff61f77f9c(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x56697cc649ce]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-ff61f77f9c(_Z20crash_signal_handleri+0x18f) [0x56697cc64e3f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x76c0781c7330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x76c078220b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x76c0781c727e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x76c0781aa8ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x76c0781ab7b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x76c07822aff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xad13c) [0x76c07822f13c]: 
/lib/x86_64-linux-gnu/libc.so.6(realloc+0x255) [0x76c0782302f5]: 
/usr/games/crawl-git-ff61f77f9c(+0xcd9194) [0x56697d449194]: 
/usr/games/crawl-git-ff61f77f9c(+0xcd40f5) [0x56697d4440f5]: 
/usr/games/crawl-git-ff61f77f9c(+0xcd4f62) [0x56697d444f62]: 
/usr/games/crawl-git-ff61f77f9c(+0xcd5174) [0x56697d445174]: 
/usr/games/crawl-git-ff61f77f9c(+0xcd3fd3) [0x56697d443fd3]: 
/usr/games/crawl-git-ff61f77f9c(+0xcd55b4) [0x56697d4455b4]: 
/usr/games/crawl-git-ff61f77f9c(lua_pcallk+0x95) [0x56697d441865]: 
/usr/games/crawl-git-ff61f77f9c(_ZN4CLua5pcallEii+0x60) [0x56697cc499c0]: CLua::pcall(int, int)
/usr/games/crawl-git-ff61f77f9c(_ZN4CLua6callfnEPKcii+0xb4) [0x56697cc4b2e4]: CLua::callfn(char const*, int, int)
/usr/games/crawl-git-ff61f77f9c(_Z13do_crash_dumpv+0x1b84) [0x56697cc74354]: do_crash_dump()
/usr/games/crawl-git-ff61f77f9c(_Z20crash_signal_handleri+0x1fa) [0x56697cc64eaa]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x76c0781c7330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x76c078220b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x76c0781c727e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x76c0781aa8ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x76c0781ab7b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x76c07822aff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xab38c) [0x76c07822d38c]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_free+0x7e) [0x76c07822fdae]: 
/usr/games/crawl-git-ff61f77f9c(+0x4d6d1e) [0x56697cc46d1e]: 
/usr/games/crawl-git-ff61f77f9c(+0xcd9159) [0x56697d449159]: 
/usr/games/crawl-git-ff61f77f9c(+0xcd64a1) [0x56697d4464a1]: 
/usr/games/crawl-git-ff61f77f9c(+0xcd88b6) [0x56697d4488b6]: 
/usr/games/crawl-git-ff61f77f9c(+0xcde5c6) [0x56697d44e5c6]: 
/usr/games/crawl-git-ff61f77f9c(_ZN4CLua5closeEv+0xbe) [0x56697cc4bbce]: CLua::close()
/usr/games/crawl-git-ff61f77f9c(+0x2f50e0) [0x56697ca650e0]: 
/usr/games/crawl-git-ff61f77f9c(+0x2f80b8) [0x56697ca680b8]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x76c0781ac1ca]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x76c0781ac28b]: 
/usr/games/crawl-git-ff61f77f9c(_start+0x25) [0x56697cb97055]: