Obtained 35 stack frames.
/usr/games/crawl-git-dd6e265509(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x61855118d22e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-dd6e265509(_Z20crash_signal_handleri+0x18f) [0x61855118d69f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x71a6c7c9a330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x71a6c7cf3b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x71a6c7c9a27e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x71a6c7c7d8ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x71a6c7c7e7b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x71a6c7cfdff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xad13c) [0x71a6c7d0213c]: 
/lib/x86_64-linux-gnu/libc.so.6(realloc+0x255) [0x71a6c7d032f5]: 
/usr/games/crawl-git-dd6e265509(+0xcb80b4) [0x61855195d0b4]: 
/usr/games/crawl-git-dd6e265509(+0xcb3015) [0x618551958015]: 
/usr/games/crawl-git-dd6e265509(+0xcb3e82) [0x618551958e82]: 
/usr/games/crawl-git-dd6e265509(+0xcb4094) [0x618551959094]: 
/usr/games/crawl-git-dd6e265509(+0xcb2ef3) [0x618551957ef3]: 
/usr/games/crawl-git-dd6e265509(+0xcb44d4) [0x6185519594d4]: 
/usr/games/crawl-git-dd6e265509(lua_pcallk+0x95) [0x618551955785]: 
/usr/games/crawl-git-dd6e265509(_ZN4CLua5pcallEii+0x60) [0x618551172290]: CLua::pcall(int, int)
/usr/games/crawl-git-dd6e265509(_ZN4CLua6callfnEPKcii+0xb4) [0x618551173bb4]: CLua::callfn(char const*, int, int)
/usr/games/crawl-git-dd6e265509(_Z13do_crash_dumpv+0x1a1a) [0x61855119ca4a]: do_crash_dump()
/usr/games/crawl-git-dd6e265509(_Z20crash_signal_handleri+0x1fa) [0x61855118d70a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x71a6c7c9a330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x71a6c7cf3b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x71a6c7c9a27e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x71a6c7c7d8ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x71a6c7c7e7b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x71a6c7cfdff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xab38c) [0x71a6c7d0038c]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_free+0x7e) [0x71a6c7d02dae]: 
/usr/games/crawl-git-dd6e265509(+0x2ef0b5) [0x618550f940b5]: 
/usr/games/crawl-git-dd6e265509(+0x2efba7) [0x618550f94ba7]: 
/usr/games/crawl-git-dd6e265509(+0x2f20eb) [0x618550f970eb]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x71a6c7c7f1ca]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x71a6c7c7f28b]: 
/usr/games/crawl-git-dd6e265509(_start+0x25) [0x6185510c11b5]: