Obtained 25 stack frames.
/usr/games/crawl-git-e618eeaa78(_Z17write_stack_traceP8_IO_FILE+0x3f) [0x555f7748414f]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-e618eeaa78(_Z20crash_signal_handleri+0x18f) [0x555f7748456f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x46210) [0x7f8f85d6c210]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0xcb) [0x7f8f85f2d24b]: 
/usr/games/crawl-git-e618eeaa78(+0x452aad) [0x555f7748daad]: 
/usr/games/crawl-git-e618eeaa78(+0x452f49) [0x555f7748df49]: 
/usr/games/crawl-git-e618eeaa78(_Z20crash_signal_handleri+0x291) [0x555f77484671]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x46210) [0x7f8f85d6c210]: 
/usr/games/crawl-git-e618eeaa78(_Z23mutation_activity_level13mutation_type+0x67) [0x555f77871c27]: mutation_activity_level(mutation_type)
/usr/games/crawl-git-e618eeaa78(_ZNK6player18get_mutation_levelE13mutation_type22mutation_activity_type+0x1e) [0x555f77871e5e]: player::get_mutation_level(mutation_type, mutation_activity_type) const
/usr/games/crawl-git-e618eeaa78(_Z11species_apt10skill_type12species_type+0xc9) [0x555f7795fde9]: species_apt(skill_type, species_type)
/usr/games/crawl-git-e618eeaa78(_Z18species_apt_factor10skill_type12species_type+0xd) [0x555f7796000d]: species_apt_factor(skill_type, species_type)
/usr/games/crawl-git-e618eeaa78(_Z21ash_skill_point_boost10skill_typei+0xb0) [0x555f775bb430]: ash_skill_point_boost(skill_type, int)
/usr/games/crawl-git-e618eeaa78(_Z15ash_skill_boost10skill_typei+0x5f) [0x555f775bd62f]: ash_skill_boost(skill_type, int)
/usr/games/crawl-git-e618eeaa78(_ZNK6player5skillE10skill_typeibb+0x1ba) [0x555f778d351a]: player::skill(skill_type, int, bool, bool) const
/usr/games/crawl-git-e618eeaa78(_Z10target_met10skill_type+0x2c) [0x555f779645bc]: target_met(skill_type)
/usr/games/crawl-git-e618eeaa78(_Z21check_training_target10skill_type+0x5b) [0x555f7796462b]: check_training_target(skill_type)
/usr/games/crawl-git-e618eeaa78(_Z22check_training_targetsv+0x1a) [0x555f7796477a]: check_training_targets()
/usr/games/crawl-git-e618eeaa78(_Z12train_skillsb+0x2fe) [0x555f77965afe]: train_skills(bool)
/usr/games/crawl-git-e618eeaa78(_Z9apply_expv+0x2e4) [0x555f778ebff4]: apply_exp()
/usr/games/crawl-git-e618eeaa78(+0xacc1ee) [0x555f77b071ee]: 
/usr/games/crawl-git-e618eeaa78(+0xacd52d) [0x555f77b0852d]: 
/usr/games/crawl-git-e618eeaa78(main+0x1a8) [0x555f773d9ac8]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3) [0x7f8f85d4d0b3]: 
/usr/games/crawl-git-e618eeaa78(_start+0x2e) [0x555f773da63e]: