Obtained 10 stack frames.
/usr/games/crawl-git-cc2d607902(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x5b2b2cc96c2e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-cc2d607902(_Z20crash_signal_handleri+0x18f) [0x5b2b2cc9709f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x7eb4ef042910]: 
/usr/games/crawl-git-cc2d607902(_Z13handle_hangupi+0) [0x5b2b2cf5d630]: handle_hangup(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x7eb4ef042910]: 
/lib/x86_64-linux-gnu/libc.so.6(wait4+0x15) [0x7eb4ef10fbf5]: 
/usr/games/crawl-git-cc2d607902(_Z8call_gdbP8_IO_FILE+0xec) [0x5b2b2cc972dc]: call_gdb(_IO_FILE*)
/usr/games/crawl-git-cc2d607902(_Z13do_crash_dumpv+0x458) [0x5b2b2cca4e88]: do_crash_dump()
/usr/games/crawl-git-cc2d607902(_Z20crash_signal_handleri+0x1fa) [0x5b2b2cc9710a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x7eb4ef042910]: