Obtained 36 stack frames.
/usr/games/crawl-git-69c9decb0d(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x5971f9b134ee]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-69c9decb0d(_Z20crash_signal_handleri+0x18f) [0x5971f9b1395f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x70b870068330]: 
/usr/games/crawl-git-69c9decb0d(+0xcdf61b) [0x5971fa2fe61b]: 
/usr/games/crawl-git-69c9decb0d(lua_next+0x32) [0x5971fa2f0bd2]: 
/usr/games/crawl-git-69c9decb0d(+0xcea1e1) [0x5971fa3091e1]: 
/usr/games/crawl-git-69c9decb0d(+0xcd4bb3) [0x5971fa2f3bb3]: 
/usr/games/crawl-git-69c9decb0d(+0xcd4e02) [0x5971fa2f3e02]: 
/usr/games/crawl-git-69c9decb0d(+0xce36b4) [0x5971fa3026b4]: 
/usr/games/crawl-git-69c9decb0d(+0xcd4ecd) [0x5971fa2f3ecd]: 
/usr/games/crawl-git-69c9decb0d(+0xcd3d13) [0x5971fa2f2d13]: 
/usr/games/crawl-git-69c9decb0d(+0xcd52f4) [0x5971fa2f42f4]: 
/usr/games/crawl-git-69c9decb0d(lua_pcallk+0x95) [0x5971fa2f05a5]: 
/usr/games/crawl-git-69c9decb0d(_ZN4CLua5pcallEii+0x60) [0x5971f9af84e0]: CLua::pcall(int, int)
/usr/games/crawl-git-69c9decb0d(_ZN4CLua6callfnEPKcii+0xb4) [0x5971f9af9e04]: CLua::callfn(char const*, int, int)
/usr/games/crawl-git-69c9decb0d(_Z13do_crash_dumpv+0x1b84) [0x5971f9b22e74]: do_crash_dump()
/usr/games/crawl-git-69c9decb0d(_Z20crash_signal_handleri+0x1fa) [0x5971f9b139ca]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x70b870068330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x70b8700c1b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x70b87006827e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x70b87004b8ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x70b87004c7b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x70b8700cbff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xab12c) [0x70b8700ce12c]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_free+0x7e) [0x70b8700d0dae]: 
/usr/games/crawl-git-69c9decb0d(+0xce7841) [0x5971fa306841]: 
/usr/games/crawl-git-69c9decb0d(+0xcd8e99) [0x5971fa2f7e99]: 
/usr/games/crawl-git-69c9decb0d(+0xcd61e1) [0x5971fa2f51e1]: 
/usr/games/crawl-git-69c9decb0d(+0xcd85f6) [0x5971fa2f75f6]: 
/usr/games/crawl-git-69c9decb0d(+0xcde306) [0x5971fa2fd306]: 
/usr/games/crawl-git-69c9decb0d(_ZN4CLua5closeEv+0xbe) [0x5971f9afa6ee]: CLua::close()
/usr/games/crawl-git-69c9decb0d(+0x2f4f36) [0x5971f9913f36]: 
/usr/games/crawl-git-69c9decb0d(+0x2f7f02) [0x5971f9916f02]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x70b87004d1ca]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x70b87004d28b]: 
/usr/games/crawl-git-69c9decb0d(_start+0x25) [0x5971f9a45bd5]: