Obtained 35 stack frames.
/usr/games/crawl-git-da3c44569b(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x5b9679f2043e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-da3c44569b(_Z20crash_signal_handleri+0x18f) [0x5b9679f208af]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x7bdcde549330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x7bdcde5a2b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x7bdcde54927e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x7bdcde52c8ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x7bdcde52d7b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x7bdcde5acff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xad13c) [0x7bdcde5b113c]: 
/lib/x86_64-linux-gnu/libc.so.6(realloc+0x255) [0x7bdcde5b22f5]: 
/usr/games/crawl-git-da3c44569b(+0xcb86e4) [0x5b967a6f06e4]: 
/usr/games/crawl-git-da3c44569b(+0xcb3645) [0x5b967a6eb645]: 
/usr/games/crawl-git-da3c44569b(+0xcb44b2) [0x5b967a6ec4b2]: 
/usr/games/crawl-git-da3c44569b(+0xcb46c4) [0x5b967a6ec6c4]: 
/usr/games/crawl-git-da3c44569b(+0xcb3523) [0x5b967a6eb523]: 
/usr/games/crawl-git-da3c44569b(+0xcb4b04) [0x5b967a6ecb04]: 
/usr/games/crawl-git-da3c44569b(lua_pcallk+0x95) [0x5b967a6e8db5]: 
/usr/games/crawl-git-da3c44569b(_ZN4CLua5pcallEii+0x60) [0x5b9679f054a0]: CLua::pcall(int, int)
/usr/games/crawl-git-da3c44569b(_ZN4CLua6callfnEPKcii+0xb4) [0x5b9679f06dc4]: CLua::callfn(char const*, int, int)
/usr/games/crawl-git-da3c44569b(_Z13do_crash_dumpv+0x1a1a) [0x5b9679f2fc5a]: do_crash_dump()
/usr/games/crawl-git-da3c44569b(_Z20crash_signal_handleri+0x1fa) [0x5b9679f2091a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x7bdcde549330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x7bdcde5a2b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x7bdcde54927e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x7bdcde52c8ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x7bdcde52d7b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x7bdcde5acff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xab38c) [0x7bdcde5af38c]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_free+0x7e) [0x7bdcde5b1dae]: 
/usr/games/crawl-git-da3c44569b(+0x2ef2af) [0x5b9679d272af]: 
/usr/games/crawl-git-da3c44569b(+0x2efda1) [0x5b9679d27da1]: 
/usr/games/crawl-git-da3c44569b(+0x2f22f1) [0x5b9679d2a2f1]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x7bdcde52e1ca]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x7bdcde52e28b]: 
/usr/games/crawl-git-da3c44569b(_start+0x25) [0x5b9679e54495]: