Obtained 24 stack frames.
/usr/games/crawl-git-dc5d926b7f(_Z17write_stack_traceP8_IO_FILEi+0x23) [0x5f73d3]: write_stack_trace(_IO_FILE*, int)
/usr/games/crawl-git-dc5d926b7f(_Z20crash_signal_handleri+0x174) [0x5f7744]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x324f0) [0x7f974413f4f0]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0x2b) [0x7f97444a5efb]: 
/usr/games/crawl-git-dc5d926b7f() [0x5fd284]
/usr/games/crawl-git-dc5d926b7f() [0x5fd4ea]
/usr/games/crawl-git-dc5d926b7f() [0x5dff46]
/usr/games/crawl-git-dc5d926b7f(_Z11real_colourjRK9coord_def+0x22) [0x5e0002]: real_colour(unsigned int, coord_def const&)
/usr/games/crawl-git-dc5d926b7f(_Z14get_cell_glyphRK9coord_defbi+0x15b) [0x95e30b]: get_cell_glyph(coord_def const&, bool, int)
/usr/games/crawl-git-dc5d926b7f(_Z10screenshotv+0x16a) [0xa30dca]: screenshot()
/usr/games/crawl-git-dc5d926b7f(_Z13do_crash_dumpv+0x1fcf) [0x5ff6df]: do_crash_dump()
/usr/games/crawl-git-dc5d926b7f(_Z20crash_signal_handleri+0x6a) [0x5f763a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x324f0) [0x7f974413f4f0]: 
/lib/x86_64-linux-gnu/libc.so.6(__write+0x10) [0x7f97441dbaf0]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_write+0x43) [0x7f974417fe53]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x72aca) [0x7f974417faca]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_xsputn+0x1fe) [0x7f974417fdbe]: 
/lib/x86_64-linux-gnu/libc.so.6(fputs+0x9c) [0x7f9744175a0c]: 
/usr/games/crawl-git-dc5d926b7f(_Z3endibPKcz+0x20b) [0x9e154b]: end(int, bool, char const*, ...)
/usr/games/crawl-git-dc5d926b7f(_Z9save_gamebPKc+0x1b5) [0x6a2fe5]: save_game(bool, char const*)
/usr/games/crawl-git-dc5d926b7f() [0x7b751d]
/usr/games/crawl-git-dc5d926b7f(main+0x5cd) [0x4fbe1d]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7f974412bead]: 
/usr/games/crawl-git-dc5d926b7f() [0x5708d9]