Obtained 24 stack frames.
/usr/games/crawl-git-ed0958e9bd(_Z17write_stack_traceP8_IO_FILEi+0x21) [0x5685a1]: write_stack_trace(_IO_FILE*, int)
/usr/games/crawl-git-ed0958e9bd(_Z20crash_signal_handleri+0x1a8) [0x568968]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x364c0) [0x7f69effed4c0]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0x2b) [0x7f69f0383b7b]: 
/usr/games/crawl-git-ed0958e9bd() [0x56ff29]
/usr/games/crawl-git-ed0958e9bd() [0x570207]
/usr/games/crawl-git-ed0958e9bd() [0x550466]
/usr/games/crawl-git-ed0958e9bd(_Z11real_colourjRK9coord_def+0x22) [0x5507c2]: real_colour(unsigned int, coord_def const&)
/usr/games/crawl-git-ed0958e9bd(_Z14get_cell_glyphRK9coord_defbi+0x43e) [0x92521e]: get_cell_glyph(coord_def const&, bool, int)
/usr/games/crawl-git-ed0958e9bd(_Z10screenshotv+0x1a5) [0xa0e615]: screenshot()
/usr/games/crawl-git-ed0958e9bd(_Z13do_crash_dumpv+0x1c7f) [0x57210f]: do_crash_dump()
/usr/games/crawl-git-ed0958e9bd(_Z20crash_signal_handleri+0x9c) [0x56885c]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x364c0) [0x7f69effed4c0]: 
/lib/x86_64-linux-gnu/libc.so.6(__write+0x10) [0x7f69f009c100]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_write+0x43) [0x7f69f0030313]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x791da) [0x7f69f00301da]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_xsputn+0x23e) [0x7f69f0030c8e]: 
/lib/x86_64-linux-gnu/libc.so.6(fputs+0x9d) [0x7f69f002607d]: 
/usr/games/crawl-git-ed0958e9bd(_Z3endibPKcz+0x22b) [0x60db7b]: end(int, bool, char const*, ...)
/usr/games/crawl-git-ed0958e9bd(_Z9save_gamebPKc+0x14e) [0x6255be]: save_game(bool, char const*)
/usr/games/crawl-git-ed0958e9bd() [0x759807]
/usr/games/crawl-git-ed0958e9bd(main+0x64d) [0x75eaed]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed) [0x7f69effd876d]: 
/usr/games/crawl-git-ed0958e9bd() [0x4c8359]