Obtained 32 stack frames.
/usr/games/crawl-git-51ab8bf2ec(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x57ec0e77247e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-51ab8bf2ec(_Z20crash_signal_handleri+0x18f) [0x57ec0e7728ef]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x7eeaa6c42910]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11b) [0x7eeaa6c9999b]: 
/lib/x86_64-linux-gnu/libc.so.6(raise+0x16) [0x7eeaa6c42866]: 
/usr/games/crawl-git-51ab8bf2ec(+0x4908fd) [0x57ec0e77f8fd]: 
/usr/games/crawl-git-51ab8bf2ec(_Z10die_nolinePKcz+0x16b) [0x57ec0e78019b]: die_noline(char const*, ...)
/usr/games/crawl-git-51ab8bf2ec(_Z20crash_signal_handleri+0x2d0) [0x57ec0e772a30]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x7eeaa6c42910]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x1802e1) [0x7eeaa6d802e1]: 
/usr/games/crawl-git-51ab8bf2ec(+0x69f878) [0x57ec0e98e878]: 
/usr/games/crawl-git-51ab8bf2ec(_Z15ego_type_stringB5cxx11RK8item_defb+0x160) [0x57ec0e9906e0]: ego_type_string[abi:cxx11](item_def const&, bool)
/usr/games/crawl-git-51ab8bf2ec(+0x71d582) [0x57ec0ea0c582]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xfcfd) [0x7eeaa74e8cfd]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0x1a2ba) [0x7eeaa74f32ba]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xae23) [0x7eeaa74e3e23]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(lua_resume+0x72) [0x7eeaa74e6072]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0x21937) [0x7eeaa74fa937]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0x21a23) [0x7eeaa74faa23]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xfcfd) [0x7eeaa74e8cfd]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0x1a2ba) [0x7eeaa74f32ba]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xe71d) [0x7eeaa74e771d]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xae23) [0x7eeaa74e3e23]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xd7b0) [0x7eeaa74e67b0]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(lua_pcall+0x5c) [0x7eeaa74e68dc]: 
/usr/games/crawl-git-51ab8bf2ec(_ZN4CLua6callfnEPKcii+0xca) [0x57ec0e7599aa]: CLua::callfn(char const*, int, int)
/usr/games/crawl-git-51ab8bf2ec(+0xbdce2e) [0x57ec0eecbe2e]: 
/usr/games/crawl-git-51ab8bf2ec(+0xbdd9b5) [0x57ec0eecc9b5]: 
/usr/games/crawl-git-51ab8bf2ec(main+0x1f7) [0x57ec0e6ad397]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x280d0) [0x7eeaa6c280d0]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x89) [0x7eeaa6c28189]: 
/usr/games/crawl-git-51ab8bf2ec(_start+0x25) [0x57ec0e6addb5]: