Obtained 33 stack frames.
/usr/games/crawl-git-15974c44ed(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x5e417140a76e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-15974c44ed(_Z20crash_signal_handleri+0x18f) [0x5e417140abdf]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x7165bd6a4330]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xac548) [0x7165bd70b548]: 
/lib/x86_64-linux-gnu/libc.so.6(malloc+0x1a2) [0x7165bd70c7f2]: 
/lib/x86_64-linux-gnu/libstdc++.so.6(_Znwm+0x24) [0x7165bda43904]
/lib/x86_64-linux-gnu/libstdc++.so.6(_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE7reserveEm+0x4c) [0x7165bdaf0dac]
/usr/games/crawl-git-15974c44ed(_Z17get_last_messagesB5cxx11ib+0x456) [0x5e4171774e46]: get_last_messages[abi:cxx11](int, bool)
/usr/games/crawl-git-15974c44ed(_Z13do_crash_dumpv+0xa94) [0x5e4171419004]: do_crash_dump()
/usr/games/crawl-git-15974c44ed(_Z20crash_signal_handleri+0x1fa) [0x5e417140ac4a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x7165bd6a4330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x7165bd6fdb2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x7165bd6a427e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x7165bd6878ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x7165bd6887b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x7165bd707ff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xab38c) [0x7165bd70a38c]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_free+0x7e) [0x7165bd70cdae]: 
/usr/games/crawl-git-15974c44ed(_ZN12text_patternD1Ev+0x21) [0x5e41718e6a31]: text_pattern::~text_pattern()
/usr/games/crawl-git-15974c44ed(+0x76833d) [0x5e417168033d]: 
/usr/games/crawl-git-15974c44ed(+0xccabf3) [0x5e4171be2bf3]: 
/usr/games/crawl-git-15974c44ed(+0xccaef4) [0x5e4171be2ef4]: 
/usr/games/crawl-git-15974c44ed(+0xcc9d53) [0x5e4171be1d53]: 
/usr/games/crawl-git-15974c44ed(+0xccb334) [0x5e4171be3334]: 
/usr/games/crawl-git-15974c44ed(+0xccc776) [0x5e4171be4776]: 
/usr/games/crawl-git-15974c44ed(+0xcce608) [0x5e4171be6608]: 
/usr/games/crawl-git-15974c44ed(+0xcd4346) [0x5e4171bec346]: 
/usr/games/crawl-git-15974c44ed(_ZN4CLua5closeEv+0xbe) [0x5e41713f196e]: CLua::close()
/usr/games/crawl-git-15974c44ed(+0x2f3270) [0x5e417120b270]: 
/usr/games/crawl-git-15974c44ed(+0x2f6248) [0x5e417120e248]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x7165bd6891ca]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x7165bd68928b]: 
/usr/games/crawl-git-15974c44ed(_start+0x25) [0x5e417133c4e5]: