Obtained 25 stack frames.
/usr/games/crawl-git-0ba292f8fe(_Z17write_stack_traceP8_IO_FILEi+0x23) [0x5f72b3]: write_stack_trace(_IO_FILE*, int)
/usr/games/crawl-git-0ba292f8fe(_Z20crash_signal_handleri+0x174) [0x5f7624]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x324f0) [0x7f6fa04944f0]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0x2b) [0x7f6fa07faefb]: 
/usr/games/crawl-git-0ba292f8fe() [0x5fd394]
/usr/games/crawl-git-0ba292f8fe() [0x5fd5fa]
/usr/games/crawl-git-0ba292f8fe() [0x5dfa86]
/usr/games/crawl-git-0ba292f8fe(_Z11real_colourjRK9coord_def+0x22) [0x5dfc42]: real_colour(unsigned int, coord_def const&)
/usr/games/crawl-git-0ba292f8fe(_Z14get_cell_glyphRK9coord_defbi+0x15b) [0x96afbb]: get_cell_glyph(coord_def const&, bool, int)
/usr/games/crawl-git-0ba292f8fe(_Z10screenshotv+0x16a) [0xa4683a]: screenshot()
/usr/games/crawl-git-0ba292f8fe(_Z13do_crash_dumpv+0x1e37) [0x5ff657]: do_crash_dump()
/usr/games/crawl-git-0ba292f8fe(_Z20crash_signal_handleri+0x74) [0x5f7524]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x324f0) [0x7f6fa04944f0]: 
/lib/x86_64-linux-gnu/libc.so.6(__write+0x10) [0x7f6fa0530af0]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_write+0x43) [0x7f6fa04d4e53]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x72aca) [0x7f6fa04d4aca]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_xsputn+0x1fe) [0x7f6fa04d4dbe]: 
/lib/x86_64-linux-gnu/libc.so.6(fputs+0x9c) [0x7f6fa04caa0c]: 
/usr/games/crawl-git-0ba292f8fe(_Z3endibPKcz+0x20b) [0x9f5c2b]: end(int, bool, char const*, ...)
/usr/games/crawl-git-0ba292f8fe(_Z9save_gamebPKc+0x152) [0x6a8f42]: save_game(bool, char const*)
/usr/games/crawl-git-0ba292f8fe() [0x7c05ff]
/usr/games/crawl-git-0ba292f8fe() [0x7c110d]
/usr/games/crawl-git-0ba292f8fe(main+0x303) [0x4fc263]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7f6fa0480ead]: 
/usr/games/crawl-git-0ba292f8fe() [0x56ea09]