Obtained 35 stack frames.
/usr/games/crawl-git-dd6e265509(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x64c79e8eb22e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-dd6e265509(_Z20crash_signal_handleri+0x18f) [0x64c79e8eb69f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x7af4d7417330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x7af4d7470b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x7af4d741727e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x7af4d73fa8ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x7af4d73fb7b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x7af4d747aff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xad13c) [0x7af4d747f13c]: 
/lib/x86_64-linux-gnu/libc.so.6(realloc+0x255) [0x7af4d74802f5]: 
/usr/games/crawl-git-dd6e265509(+0xcb80b4) [0x64c79f0bb0b4]: 
/usr/games/crawl-git-dd6e265509(+0xcb3015) [0x64c79f0b6015]: 
/usr/games/crawl-git-dd6e265509(+0xcb3e82) [0x64c79f0b6e82]: 
/usr/games/crawl-git-dd6e265509(+0xcb4094) [0x64c79f0b7094]: 
/usr/games/crawl-git-dd6e265509(+0xcb2ef3) [0x64c79f0b5ef3]: 
/usr/games/crawl-git-dd6e265509(+0xcb44d4) [0x64c79f0b74d4]: 
/usr/games/crawl-git-dd6e265509(lua_pcallk+0x95) [0x64c79f0b3785]: 
/usr/games/crawl-git-dd6e265509(_ZN4CLua5pcallEii+0x60) [0x64c79e8d0290]: CLua::pcall(int, int)
/usr/games/crawl-git-dd6e265509(_ZN4CLua6callfnEPKcii+0xb4) [0x64c79e8d1bb4]: CLua::callfn(char const*, int, int)
/usr/games/crawl-git-dd6e265509(_Z13do_crash_dumpv+0x1a1a) [0x64c79e8faa4a]: do_crash_dump()
/usr/games/crawl-git-dd6e265509(_Z20crash_signal_handleri+0x1fa) [0x64c79e8eb70a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x7af4d7417330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x7af4d7470b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x7af4d741727e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x7af4d73fa8ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x7af4d73fb7b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x7af4d747aff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xab38c) [0x7af4d747d38c]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_free+0x7e) [0x7af4d747fdae]: 
/usr/games/crawl-git-dd6e265509(+0x2ef0b5) [0x64c79e6f20b5]: 
/usr/games/crawl-git-dd6e265509(+0x2efba7) [0x64c79e6f2ba7]: 
/usr/games/crawl-git-dd6e265509(+0x2f20eb) [0x64c79e6f50eb]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x7af4d73fc1ca]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x7af4d73fc28b]: 
/usr/games/crawl-git-dd6e265509(_start+0x25) [0x64c79e81f1b5]: