Obtained 36 stack frames.
/usr/games/crawl-0.34(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x5ef9781c8a9e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x18f) [0x5ef9781c8f0f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x701e8fc42910]: 
/usr/games/crawl-0.34(+0xce1cdb) [0x5ef9789b5cdb]: 
/usr/games/crawl-0.34(lua_next+0x32) [0x5ef9789a82e2]: 
/usr/games/crawl-0.34(+0xceca01) [0x5ef9789c0a01]: 
/usr/games/crawl-0.34(+0xcd72c3) [0x5ef9789ab2c3]: 
/usr/games/crawl-0.34(+0xcd7512) [0x5ef9789ab512]: 
/usr/games/crawl-0.34(+0xce5e14) [0x5ef9789b9e14]: 
/usr/games/crawl-0.34(+0xcd75dd) [0x5ef9789ab5dd]: 
/usr/games/crawl-0.34(+0xcd6423) [0x5ef9789aa423]: 
/usr/games/crawl-0.34(+0xcd7a04) [0x5ef9789aba04]: 
/usr/games/crawl-0.34(lua_pcallk+0x95) [0x5ef9789a7cb5]: 
/usr/games/crawl-0.34(_ZN4CLua5pcallEii+0x60) [0x5ef9781ad9c0]: CLua::pcall(int, int)
/usr/games/crawl-0.34(_ZN4CLua6callfnEPKcii+0xb4) [0x5ef9781af2e4]: CLua::callfn(char const*, int, int)
/usr/games/crawl-0.34(_Z13do_crash_dumpv+0x1b94) [0x5ef9781d8454]: do_crash_dump()
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x1fa) [0x5ef9781c8f7a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x701e8fc42910]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11b) [0x701e8fc9999b]: 
/lib/x86_64-linux-gnu/libc.so.6(raise+0x16) [0x701e8fc42866]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xd7) [0x701e8fc268b7]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x27750) [0x701e8fc27750]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa3c67) [0x701e8fca3c67]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa5c5c) [0x701e8fca5c5c]: 
/lib/x86_64-linux-gnu/libc.so.6(free+0x73) [0x701e8fca87f3]: 
/usr/games/crawl-0.34(+0xce9fa1) [0x5ef9789bdfa1]: 
/usr/games/crawl-0.34(+0xcdb5a9) [0x5ef9789af5a9]: 
/usr/games/crawl-0.34(+0xcd8919) [0x5ef9789ac919]: 
/usr/games/crawl-0.34(+0xcdad06) [0x5ef9789aed06]: 
/usr/games/crawl-0.34(+0xce09f6) [0x5ef9789b49f6]: 
/usr/games/crawl-0.34(_ZN4CLua5closeEv+0xbe) [0x5ef9781afbce]: CLua::close()
/usr/games/crawl-0.34(+0x2f5028) [0x5ef977fc9028]: 
/usr/games/crawl-0.34(+0x2f7ff1) [0x5ef977fcbff1]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x280d0) [0x701e8fc280d0]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x89) [0x701e8fc28189]: 
/usr/games/crawl-0.34(_start+0x25) [0x5ef9780faf95]: