Obtained 27 stack frames.
/usr/games/crawl-git-7556756b11(_Z17write_stack_traceP8_IO_FILEi+0x23) [0x580a73]: write_stack_trace(_IO_FILE*, int)
/usr/games/crawl-git-7556756b11(_Z20crash_signal_handleri+0x1a5) [0x580e15]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x364c0) [0x7f46078654c0]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0x2b) [0x7f4607bfbb7b]: 
/usr/games/crawl-git-7556756b11() [0x587659]
/usr/games/crawl-git-7556756b11() [0x587901]
/usr/games/crawl-git-7556756b11() [0x569a97]
/usr/games/crawl-git-7556756b11(_Z11real_colourjRK9coord_def+0x22) [0x569c12]: real_colour(unsigned int, coord_def const&)
/usr/games/crawl-git-7556756b11(_Z14get_cell_glyphRK9coord_defbi+0x15b) [0x91dc2b]: get_cell_glyph(coord_def const&, bool, int)
/usr/games/crawl-git-7556756b11(_Z10screenshotv+0x13a) [0xa02efa]: screenshot()
/usr/games/crawl-git-7556756b11(_Z13do_crash_dumpv+0x1f51) [0x589ae1]: do_crash_dump()
/usr/games/crawl-git-7556756b11(_Z20crash_signal_handleri+0x9c) [0x580d0c]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x364c0) [0x7f46078654c0]: 
/lib/x86_64-linux-gnu/libc.so.6(__write+0x10) [0x7f4607914100]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_write+0x43) [0x7f46078a8313]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x791da) [0x7f46078a81da]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_xsputn+0x23e) [0x7f46078a8c8e]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x4d016) [0x7f460787c016]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_vfprintf+0x59e) [0x7f4607876c1e]: 
/lib/x86_64-linux-gnu/libc.so.6(__fprintf_chk+0xeb) [0x7f46079368cb]: 
/usr/games/crawl-git-7556756b11(_Z3endibPKcz+0x237) [0x61e747]: end(int, bool, char const*, ...)
/usr/games/crawl-git-7556756b11(_Z9save_gamebPKc+0x156) [0x63d2b6]: save_game(bool, char const*)
/usr/games/crawl-git-7556756b11() [0x75cd7d]
/usr/games/crawl-git-7556756b11() [0x75d96d]
/usr/games/crawl-git-7556756b11(main+0x2f9) [0x760439]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed) [0x7f460785076d]: 
/usr/games/crawl-git-7556756b11() [0x4ec4a9]