Obtained 25 stack frames.
/usr/games/crawl-git-07e69d70c1(_Z17write_stack_traceP8_IO_FILEi+0x23) [0x5f59d3]: write_stack_trace(_IO_FILE*, int)
/usr/games/crawl-git-07e69d70c1() [0x5f5d44]
/lib/x86_64-linux-gnu/libc.so.6(+0x324f0) [0x7f60270904f0]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0x2b) [0x7f60273f6efb]: 
/usr/games/crawl-git-07e69d70c1() [0x5fb994]
/usr/games/crawl-git-07e69d70c1() [0x5fbbfa]
/usr/games/crawl-git-07e69d70c1() [0x5de276]
/usr/games/crawl-git-07e69d70c1(_Z11real_colourjRK9coord_def+0x22) [0x5de432]: real_colour(unsigned int, coord_def const&)
/usr/games/crawl-git-07e69d70c1(_Z14get_cell_glyphRK9coord_defbi+0x15b) [0x967fcb]: get_cell_glyph(coord_def const&, bool, int)
/usr/games/crawl-git-07e69d70c1(_Z10screenshotv+0x172) [0xa42ab2]: screenshot()
/usr/games/crawl-git-07e69d70c1(_Z13do_crash_dumpv+0x1ea7) [0x5fdc97]: do_crash_dump()
/usr/games/crawl-git-07e69d70c1() [0x5f5c44]
/lib/x86_64-linux-gnu/libc.so.6(+0x324f0) [0x7f60270904f0]: 
/lib/x86_64-linux-gnu/libc.so.6(__write+0x10) [0x7f602712caf0]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_write+0x43) [0x7f60270d0e53]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x72aca) [0x7f60270d0aca]: 
/lib/x86_64-linux-gnu/libc.so.6(_IO_file_xsputn+0x1fe) [0x7f60270d0dbe]: 
/lib/x86_64-linux-gnu/libc.so.6(fputs+0x9c) [0x7f60270c6a0c]: 
/usr/games/crawl-git-07e69d70c1(_Z3endibPKcz+0x20b) [0x9f253b]: end(int, bool, char const*, ...)
/usr/games/crawl-git-07e69d70c1(_Z9save_gamebPKc+0x152) [0x6a6902]: save_game(bool, char const*)
/usr/games/crawl-git-07e69d70c1() [0x7bdea7]
/usr/games/crawl-git-07e69d70c1() [0x7beb8d]
/usr/games/crawl-git-07e69d70c1(main+0x2f9) [0x4fc189]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7f602707cead]: 
/usr/games/crawl-git-07e69d70c1() [0x56e19d]