Obtained 35 stack frames.
/usr/games/crawl-git-442816a090(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x5a484914622e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-442816a090(_Z20crash_signal_handleri+0x18f) [0x5a484914669f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x7cc67461e330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x7cc674677b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x7cc67461e27e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x7cc6746018ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x7cc6746027b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x7cc674681ff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xad13c) [0x7cc67468613c]: 
/lib/x86_64-linux-gnu/libc.so.6(realloc+0x255) [0x7cc6746872f5]: 
/usr/games/crawl-git-442816a090(+0xcb80b4) [0x5a48499160b4]: 
/usr/games/crawl-git-442816a090(+0xcb3015) [0x5a4849911015]: 
/usr/games/crawl-git-442816a090(+0xcb3e82) [0x5a4849911e82]: 
/usr/games/crawl-git-442816a090(+0xcb4094) [0x5a4849912094]: 
/usr/games/crawl-git-442816a090(+0xcb2ef3) [0x5a4849910ef3]: 
/usr/games/crawl-git-442816a090(+0xcb44d4) [0x5a48499124d4]: 
/usr/games/crawl-git-442816a090(lua_pcallk+0x95) [0x5a484990e785]: 
/usr/games/crawl-git-442816a090(_ZN4CLua5pcallEii+0x60) [0x5a484912b290]: CLua::pcall(int, int)
/usr/games/crawl-git-442816a090(_ZN4CLua6callfnEPKcii+0xb4) [0x5a484912cbb4]: CLua::callfn(char const*, int, int)
/usr/games/crawl-git-442816a090(_Z13do_crash_dumpv+0x1a1a) [0x5a4849155a4a]: do_crash_dump()
/usr/games/crawl-git-442816a090(_Z20crash_signal_handleri+0x1fa) [0x5a484914670a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x7cc67461e330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x7cc674677b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x7cc67461e27e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x7cc6746018ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x7cc6746027b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x7cc674681ff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xab38c) [0x7cc67468438c]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_free+0x7e) [0x7cc674686dae]: 
/usr/games/crawl-git-442816a090(_Z20clear_message_windowv+0xd2) [0x5a48494ad792]: clear_message_window()
/usr/games/crawl-git-442816a090(+0x2f1a00) [0x5a4848f4fa00]: 
/usr/games/crawl-git-442816a090(+0x2f20eb) [0x5a4848f500eb]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x7cc6746031ca]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x7cc67460328b]: 
/usr/games/crawl-git-442816a090(_start+0x25) [0x5a484907a1b5]: