Obtained 25 stack frames.
/usr/games/crawl-0.13(_Z17write_stack_traceP8_IO_FILEi+0x21) [0x550b11]: write_stack_trace(_IO_FILE*, int)
/usr/games/crawl-0.13() [0x550ed8]
/lib/x86_64-linux-gnu/libc.so.6(+0x364c0) [0x7fc7b42b44c0]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0x2b) [0x7fc7b464ab7b]: 
/usr/games/crawl-0.13() [0x557f49]
/usr/games/crawl-0.13() [0x558227]
/usr/games/crawl-0.13() [0x538906]
/usr/games/crawl-0.13(_Z11real_colourjRK9coord_def+0x22) [0x538cb2]: real_colour(unsigned int, coord_def const&)
/usr/games/crawl-0.13(_Z14get_cell_glyphRK9coord_defbi+0x4b6) [0x909996]: get_cell_glyph(coord_def const&, bool, int)
/usr/games/crawl-0.13(_Z10screenshotv+0x1a5) [0x9f3ed5]: screenshot()
/usr/games/crawl-0.13(_Z13do_crash_dumpv+0xe15) [0x559285]: do_crash_dump()
/usr/games/crawl-0.13() [0x550dcc]
/lib/x86_64-linux-gnu/libc.so.6(+0x364c0) [0x7fc7b42b44c0]: 
/lib/x86_64-linux-gnu/libc.so.6(__write+0x10) [0x7fc7b4363100]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_write+0x43) [0x7fc7b42f7313]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x791da) [0x7fc7b42f71da]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_xsputn+0x23e) [0x7fc7b42f7c8e]: 
/lib/x86_64-linux-gnu/libc.so.6(fputs+0x9d) [0x7fc7b42ed07d]: 
/usr/games/crawl-0.13(_Z3endibPKcz+0x221) [0x9a1321]: end(int, bool, char const*, ...)
/usr/games/crawl-0.13(_Z9save_gamebPKc+0x151) [0x60cea1]: save_game(bool, char const*)
/usr/games/crawl-0.13() [0x73a5d4]
/usr/games/crawl-0.13() [0x73b135]
/usr/games/crawl-0.13(main+0x145) [0x73fe05]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed) [0x7fc7b429f76d]: 
/usr/games/crawl-0.13() [0x4bcf29]