Obtained 36 stack frames.
/usr/games/crawl-git-17eea93bd4(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x57e48fe054ee]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-17eea93bd4(_Z20crash_signal_handleri+0x18f) [0x57e48fe0595f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x781392842910]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11b) [0x78139289999b]: 
/lib/x86_64-linux-gnu/libc.so.6(raise+0x16) [0x781392842866]: 
/usr/games/crawl-git-17eea93bd4(+0x49096d) [0x57e48fe1296d]: 
/usr/games/crawl-git-17eea93bd4(_Z10die_nolinePKcz+0x16b) [0x57e48fe1320b]: die_noline(char const*, ...)
/usr/games/crawl-git-17eea93bd4(_Z20crash_signal_handleri+0x2d0) [0x57e48fe05aa0]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x781392842910]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa5e81) [0x7813928a5e81]: 
/lib/x86_64-linux-gnu/libc.so.6(free+0x73) [0x7813928a87f3]: 
/usr/games/crawl-git-17eea93bd4(+0x46656e) [0x57e48fde856e]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xc5b2) [0x7813931fd5b2]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xdedf) [0x7813931feedf]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xead2) [0x7813931ffad2]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xefe5) [0x7813931fffe5]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0x1a6e1) [0x78139320b6e1]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xe71d) [0x7813931ff71d]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0x1a743) [0x78139320b743]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xae23) [0x7813931fbe23]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(lua_resume+0x72) [0x7813931fe072]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0x21937) [0x781393212937]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0x21a23) [0x781393212a23]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xfcfd) [0x781393200cfd]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0x1a2ba) [0x78139320b2ba]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xe71d) [0x7813931ff71d]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xae23) [0x7813931fbe23]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xd7b0) [0x7813931fe7b0]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(lua_pcall+0x5c) [0x7813931fe8dc]: 
/usr/games/crawl-git-17eea93bd4(_ZN4CLua6callfnEPKcii+0xca) [0x57e48fdeca1a]: CLua::callfn(char const*, int, int)
/usr/games/crawl-git-17eea93bd4(+0xbdcece) [0x57e49055eece]: 
/usr/games/crawl-git-17eea93bd4(+0xbdda55) [0x57e49055fa55]: 
/usr/games/crawl-git-17eea93bd4(main+0x1f7) [0x57e48fd40407]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x280d0) [0x7813928280d0]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x89) [0x781392828189]: 
/usr/games/crawl-git-17eea93bd4(_start+0x25) [0x57e48fd40e25]: