Obtained 8 stack frames.
/usr/games/crawl-git-cc2d607902(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x5bcb1b65ec2e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-cc2d607902(_Z20crash_signal_handleri+0x18f) [0x5bcb1b65f09f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x7c8640842910]: 
/lib/x86_64-linux-gnu/libc.so.6(wait4+0x15) [0x7c864090fbf5]: 
/usr/games/crawl-git-cc2d607902(_Z8call_gdbP8_IO_FILE+0xec) [0x5bcb1b65f2dc]: call_gdb(_IO_FILE*)
/usr/games/crawl-git-cc2d607902(_Z13do_crash_dumpv+0x458) [0x5bcb1b66ce88]: do_crash_dump()
/usr/games/crawl-git-cc2d607902(_Z20crash_signal_handleri+0x1fa) [0x5bcb1b65f10a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x7c8640842910]: