Obtained 18 stack frames.
/usr/games/crawl-0.34(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x588f93c9c95e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x18f) [0x588f93c9cdcf]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x74bf3ba42910]: 
/usr/games/crawl-0.34(_Z13handle_hangupi+0) [0x588f93f66050]: handle_hangup(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x74bf3ba42910]: 
/lib/x86_64-linux-gnu/libc.so.6(wait4+0x15) [0x74bf3bb0fbf5]: 
/usr/games/crawl-0.34(_Z8call_gdbP8_IO_FILE+0xec) [0x588f93c9d00c]: call_gdb(_IO_FILE*)
/usr/games/crawl-0.34(_Z13do_crash_dumpv+0x458) [0x588f93caabb8]: do_crash_dump()
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x1fa) [0x588f93c9ce3a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x74bf3ba42910]: 
/usr/games/crawl-0.34(+0xcd918b) [0x588f9448118b]: 
/usr/games/crawl-0.34(+0xcdee86) [0x588f94486e86]: 
/usr/games/crawl-0.34(_ZN4CLua5closeEv+0xbe) [0x588f93c83a8e]: CLua::close()
/usr/games/crawl-0.34(+0x2f4ecc) [0x588f93a9cecc]: 
/usr/games/crawl-0.34(+0x2f7e95) [0x588f93a9fe95]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x280d0) [0x74bf3ba280d0]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x89) [0x74bf3ba28189]: 
/usr/games/crawl-0.34(_start+0x25) [0x588f93bcee35]: