https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96743
--- Comment #1 from Kevin Stallard <kevin at arilabs dot net> --- A more complete output of the error: /home/parallels/Perforce/kevin.stallard_Ubuntu18_Helios-Nucleus-Development_9171/BraceTest/BraceTest.cpp: In constructor 'BraceTest::BraceTest()': /home/parallels/Perforce/kevin.stallard_Ubuntu18_Helios-Nucleus-Development_9171/BraceTest/BraceTest.cpp:23:102: internal compiler error: in build_vec_init_elt, at cp/tree.c:665 BraceTest::BraceTest() : _entries { {"FirstAction", [this]( const char *data) {this->Foo( data );} } } ^