Checking patch string/tester.c...
error: while searching for:
   are larger than the actual buffers, which result in various
   warnings.  */
DIAG_IGNORE_NEEDS_COMMENT (8, "-Warray-bounds");
DIAG_IGNORE_NEEDS_COMMENT (5.0, "-Wmemset-transposed-args");
#if __GNUC_PREREQ (7, 0)
DIAG_IGNORE_NEEDS_COMMENT (9, "-Wrestrict");
DIAG_IGNORE_NEEDS_COMMENT (7, "-Wstringop-overflow=");

error: patch failed: string/tester.c:55
error: string/tester.c: patch does not apply