https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99855
--- Comment #2 from Alexander Lelyakin <alexander.lelyakin at googlemail dot
com> ---
Yes, attempting to repeat gives different message, but not same as by you:
malloc(): smallbin double linked list corrupted
In file included from /usr/local/include/c++/11.0.1/bits/fs_path.h:46,
from /usr/local/include/c++/11.0.1/filesystem:45:
/usr/local/include/c++/11.0.1/bits/shared_ptr.h:330:32: internal compiler
error: Aborted
330 | #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
0x11016bf crash_signal
../../gcc/gcc/toplev.c:327
0x1d47750 xrealloc
../../gcc/libiberty/xmalloc.c:179
0x1cb82a7 diagnostic_classify_diagnostic(diagnostic_context*, int,
diagnostic_t, unsigned int)
../../gcc/gcc/diagnostic.c:864
0x1ca85ca control_warning_option(unsigned int, int, char const*, bool, unsigned
int, unsigned int, cl_option_handlers const*, gcc_options*, gcc_options*,
diagnostic_context*)
../../gcc/gcc/opts-common.c:1722
0xc00249 handle_pragma_diagnostic
../../gcc/gcc/c-family/c-pragma.c:849
0xaa63ab cp_parser_pragma
../../gcc/gcc/cp/parser.c:45198
0xaa7f4e cp_parser_member_specification_opt
../../gcc/gcc/cp/parser.c:25793
0xaa7f4e cp_parser_class_specifier_1
../../gcc/gcc/cp/parser.c:24877
0xaaa0a3 cp_parser_class_specifier
../../gcc/gcc/cp/parser.c:25193
0xaaa0a3 cp_parser_type_specifier
../../gcc/gcc/cp/parser.c:18440
0xaab039 cp_parser_decl_specifier_seq
../../gcc/gcc/cp/parser.c:15062
0xad5c46 cp_parser_single_declaration
../../gcc/gcc/cp/parser.c:30426
0xad5fc6 cp_parser_template_declaration_after_parameters
../../gcc/gcc/cp/parser.c:30089
0xad6770 cp_parser_explicit_template_declaration
../../gcc/gcc/cp/parser.c:30355
0xad8e99 cp_parser_declaration
../../gcc/gcc/cp/parser.c:14068
0xad8469 cp_parser_toplevel_declaration
../../gcc/gcc/cp/parser.c:14166
0xad8469 cp_parser_declaration_seq_opt
../../gcc/gcc/cp/parser.c:13954
0xad8902 cp_parser_namespace_body
../../gcc/gcc/cp/parser.c:20454
0xad8902 cp_parser_namespace_definition
../../gcc/gcc/cp/parser.c:20432
0xad9058 cp_parser_declaration
../../gcc/gcc/cp/parser.c:14117
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
