https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96425
--- Comment #7 from Sergei Trofimovich <slyfox at gcc dot gnu.org> --- If I bisected correctly SIGSEGV disappeared in r11-2735-g634046d1a81b48 commit 634046d1a81b48a48b3564ff2f90974f6b7b087b Author: Nathan Sidwell <nat...@acm.org> Date: Tue Aug 18 06:02:37 2020 -0700 c++: Move hidden-lambda entity lookup checking