Obtained 35 stack frames.
/usr/games/crawl-git-99c0725460(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x614c82ed24ae]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-99c0725460(_Z20crash_signal_handleri+0x18f) [0x614c82ed291f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x7bc9a20b0330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x7bc9a2109b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x7bc9a20b027e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x7bc9a20938ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x7bc9a20947b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x7bc9a2113ff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xad13c) [0x7bc9a211813c]: 
/lib/x86_64-linux-gnu/libc.so.6(realloc+0x255) [0x7bc9a21192f5]: 
/usr/games/crawl-git-99c0725460(+0xcb8834) [0x614c836a2834]: 
/usr/games/crawl-git-99c0725460(+0xcb3795) [0x614c8369d795]: 
/usr/games/crawl-git-99c0725460(+0xcb4602) [0x614c8369e602]: 
/usr/games/crawl-git-99c0725460(+0xcb4814) [0x614c8369e814]: 
/usr/games/crawl-git-99c0725460(+0xcb3673) [0x614c8369d673]: 
/usr/games/crawl-git-99c0725460(+0xcb4c54) [0x614c8369ec54]: 
/usr/games/crawl-git-99c0725460(lua_pcallk+0x95) [0x614c8369af05]: 
/usr/games/crawl-git-99c0725460(_ZN4CLua5pcallEii+0x60) [0x614c82eb7510]: CLua::pcall(int, int)
/usr/games/crawl-git-99c0725460(_ZN4CLua6callfnEPKcii+0xb4) [0x614c82eb8e34]: CLua::callfn(char const*, int, int)
/usr/games/crawl-git-99c0725460(_Z13do_crash_dumpv+0x1b84) [0x614c82ee1e34]: do_crash_dump()
/usr/games/crawl-git-99c0725460(_Z20crash_signal_handleri+0x1fa) [0x614c82ed298a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x7bc9a20b0330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x7bc9a2109b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x7bc9a20b027e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x7bc9a20938ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x7bc9a20947b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x7bc9a2113ff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xab38c) [0x7bc9a211638c]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_free+0x7e) [0x7bc9a2118dae]: 
/usr/games/crawl-git-99c0725460(_ZN13message_store5clearEv+0x73) [0x614c83241a13]: message_store::clear()
/usr/games/crawl-git-99c0725460(+0x2ef602) [0x614c82cd9602]: 
/usr/games/crawl-git-99c0725460(+0x2f2355) [0x614c82cdc355]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x7bc9a20951ca]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x7bc9a209528b]: 
/usr/games/crawl-git-99c0725460(_start+0x25) [0x614c82e06505]: