Obtained 25 stack frames.
/usr/games/crawl-0.13(_Z17write_stack_traceP8_IO_FILEi+0x23) [0x5f4e93]: write_stack_trace(_IO_FILE*, int)
/usr/games/crawl-0.13() [0x5f5204]
/lib/x86_64-linux-gnu/libc.so.6(+0x324f0) [0x7fe204d1c4f0]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0x2b) [0x7fe205082efb]: 
/usr/games/crawl-0.13() [0x5fae54]
/usr/games/crawl-0.13() [0x5fb0ba]
/usr/games/crawl-0.13() [0x5dd846]
/usr/games/crawl-0.13(_Z11real_colourjRK9coord_def+0x22) [0x5dda02]: real_colour(unsigned int, coord_def const&)
/usr/games/crawl-0.13(_Z14get_cell_glyphRK9coord_defbi+0x15b) [0x965a1b]: get_cell_glyph(coord_def const&, bool, int)
/usr/games/crawl-0.13(_Z10screenshotv+0x16a) [0xa41d7a]: screenshot()
/usr/games/crawl-0.13(_Z13do_crash_dumpv+0x16bf) [0x5fc96f]: do_crash_dump()
/usr/games/crawl-0.13() [0x5f5104]
/lib/x86_64-linux-gnu/libc.so.6(+0x324f0) [0x7fe204d1c4f0]: 
/lib/x86_64-linux-gnu/libc.so.6(__write+0x10) [0x7fe204db8af0]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_write+0x43) [0x7fe204d5ce53]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x72aca) [0x7fe204d5caca]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_xsputn+0x1fe) [0x7fe204d5cdbe]: 
/lib/x86_64-linux-gnu/libc.so.6(fputs+0x9c) [0x7fe204d52a0c]: 
/usr/games/crawl-0.13(_Z3endibPKcz+0x20b) [0x9f07eb]: end(int, bool, char const*, ...)
/usr/games/crawl-0.13(_Z9save_gamebPKc+0x152) [0x6a41f2]: save_game(bool, char const*)
/usr/games/crawl-0.13() [0x7bb162]
/usr/games/crawl-0.13() [0x7bbc5d]
/usr/games/crawl-0.13(main+0x2f9) [0x4fbbb9]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7fe204d08ead]: 
/usr/games/crawl-0.13() [0x56dabd]