Obtained 27 stack frames.
/usr/games/crawl-git-9df874ce5e(_Z17write_stack_traceP8_IO_FILEi+0x23) [0x5a5033]: write_stack_trace(_IO_FILE*, int)
/usr/games/crawl-git-9df874ce5e(_Z20crash_signal_handleri+0x1a5) [0x5a53d5]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x364c0) [0x7f3c87ece4c0]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0x2b) [0x7f3c88264b7b]: 
/usr/games/crawl-git-9df874ce5e() [0x5abf49]
/usr/games/crawl-git-9df874ce5e() [0x5ac1f1]
/usr/games/crawl-git-9df874ce5e() [0x593387]
/usr/games/crawl-git-9df874ce5e(_Z11real_colourjRK9coord_def+0x22) [0x593502]: real_colour(unsigned int, coord_def const&)
/usr/games/crawl-git-9df874ce5e(_Z14get_cell_glyphRK9coord_defbi+0x15b) [0x97ab0b]: get_cell_glyph(coord_def const&, bool, int)
/usr/games/crawl-git-9df874ce5e(_Z10screenshotv+0x132) [0xa7f792]: screenshot()
/usr/games/crawl-git-9df874ce5e(_Z13do_crash_dumpv+0x20b1) [0x5ae531]: do_crash_dump()
/usr/games/crawl-git-9df874ce5e(_Z20crash_signal_handleri+0x9c) [0x5a52cc]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x364c0) [0x7f3c87ece4c0]: 
/lib/x86_64-linux-gnu/libc.so.6(__write+0x10) [0x7f3c87f7d100]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_write+0x43) [0x7f3c87f11313]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x791da) [0x7f3c87f111da]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_xsputn+0x23e) [0x7f3c87f11c8e]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x4d016) [0x7f3c87ee5016]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_vfprintf+0x59e) [0x7f3c87edfc1e]: 
/lib/x86_64-linux-gnu/libc.so.6(__fprintf_chk+0xeb) [0x7f3c87f9f8cb]: 
/usr/games/crawl-git-9df874ce5e(_Z3endibPKcz+0x227) [0x642327]: end(int, bool, char const*, ...)
/usr/games/crawl-git-9df874ce5e(_Z9save_gamebPKc+0x160) [0x6640f0]: save_game(bool, char const*)
/usr/games/crawl-git-9df874ce5e() [0x7a7ff3]
/usr/games/crawl-git-9df874ce5e() [0x7a8d95]
/usr/games/crawl-git-9df874ce5e(main+0x2eb) [0x7abd3b]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed) [0x7f3c87eb976d]: 
/usr/games/crawl-git-9df874ce5e() [0x50c609]