Obtained 50 stack frames.
/usr/games/crawl-git-eb7098ad9d(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x555c4a23060e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-eb7098ad9d(_Z20crash_signal_handleri+0x18f) [0x555c4a230a7f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x732691442910]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11b) [0x73269149999b]: 
/lib/x86_64-linux-gnu/libc.so.6(raise+0x16) [0x732691442866]: 
/usr/games/crawl-git-eb7098ad9d(+0x4b8a8d) [0x555c4a23da8d]: 
/usr/games/crawl-git-eb7098ad9d(_Z10die_nolinePKcz+0x16b) [0x555c4a23e27b]: die_noline(char const*, ...)
/usr/games/crawl-git-eb7098ad9d(_Z20crash_signal_handleri+0x2d0) [0x555c4a230bc0]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x732691442910]: 
/usr/games/crawl-git-eb7098ad9d(_ZN15travel_pathfind18path_examine_pointERK9coord_def+0xd0) [0x555c4a8df080]: travel_pathfind::path_examine_point(coord_def const&)
/usr/games/crawl-git-eb7098ad9d(_ZN15travel_pathfind8pathfindE13run_mode_typeb+0x186) [0x555c4a8df4f6]: travel_pathfind::pathfind(run_mode_type, bool)
/usr/games/crawl-git-eb7098ad9d(_Z26fill_travel_point_distanceRK9coord_defPSt6vectorIS_SaIS_EE+0x10e) [0x555c4a8e049e]: fill_travel_point_distance(coord_def const&, std::vector<coord_def, std::allocator<coord_def> >*)
/usr/games/crawl-git-eb7098ad9d(+0xb5b5b2) [0x555c4a8e05b2]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: 
/usr/games/crawl-git-eb7098ad9d(+0xb5b839) [0x555c4a8e0839]: