Obtained 25 stack frames.
/usr/games/crawl-git-f0a300aaee(_Z17write_stack_traceP8_IO_FILEi+0x23) [0x63ee73]: write_stack_trace(_IO_FILE*, int)
/usr/games/crawl-git-f0a300aaee(_Z20crash_signal_handleri+0x174) [0x63f1e4]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x324f0) [0x7f4f9d7c94f0]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0x2b) [0x7f4f9db2fefb]: 
/usr/games/crawl-git-f0a300aaee() [0x645794]
/usr/games/crawl-git-f0a300aaee() [0x6459fa]
/usr/games/crawl-git-f0a300aaee() [0x62d7f6]
/usr/games/crawl-git-f0a300aaee(_Z11real_colourjRK9coord_def+0x22) [0x62d972]: real_colour(unsigned int, coord_def const&)
/usr/games/crawl-git-f0a300aaee(_Z14get_cell_glyphRK9coord_defbi+0x14b) [0x9efefb]: get_cell_glyph(coord_def const&, bool, int)
/usr/games/crawl-git-f0a300aaee(_Z10screenshotv+0x132) [0xaece72]: screenshot()
/usr/games/crawl-git-f0a300aaee(_Z13do_crash_dumpv+0x1f41) [0x647b61]: do_crash_dump()
/usr/games/crawl-git-f0a300aaee(_Z20crash_signal_handleri+0x74) [0x63f0e4]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x324f0) [0x7f4f9d7c94f0]: 
/lib/x86_64-linux-gnu/libc.so.6(__write+0x10) [0x7f4f9d865af0]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_write+0x43) [0x7f4f9d809e53]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x72aca) [0x7f4f9d809aca]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_xsputn+0x1fe) [0x7f4f9d809dbe]: 
/lib/x86_64-linux-gnu/libc.so.6(fputs+0x9c) [0x7f4f9d7ffa0c]: 
/usr/games/crawl-git-f0a300aaee(_Z3endibPKcz+0x201) [0x6d8d51]: end(int, bool, char const*, ...)
/usr/games/crawl-git-f0a300aaee(_Z9save_gamebPKc+0x160) [0x6f4080]: save_game(bool, char const*)
/usr/games/crawl-git-f0a300aaee() [0x82d4a3]
/usr/games/crawl-git-f0a300aaee() [0x82e265]
/usr/games/crawl-git-f0a300aaee(main+0x2eb) [0x5375eb]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7f4f9d7b5ead]: 
/usr/games/crawl-git-f0a300aaee() [0x5aa05d]