StacktraceTop: __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7f07a7e2f860 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:199 malloc_printerr (ptr=0x7f06c814a1d0, str=0x7f07a7e2fa28 "double free or corruption (fasttop)", action=3) at malloc.c:4902 _int_free (av=<optimized out>, p=0x7f06c814a1c0, have_lock=0) at malloc.c:3758 finish (this=<optimized out>) at hb-common.cc:190 free_langs () at hb-common.cc:203
StacktraceTop: do_abort@ entry=2, fmt=fmt@ entry=0x7f07a7e 2f860 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/ unix/sysv/ linux/libc_ fatal.c: 199 a1d0, str=0x7f07a7e2fa28 "double free or corruption (fasttop)", action=3) at malloc.c:4902
__libc_message (do_abort=
malloc_printerr (ptr=0x7f06c814
_int_free (av=<optimized out>, p=0x7f06c814a1c0, have_lock=0) at malloc.c:3758
finish (this=<optimized out>) at hb-common.cc:190
free_langs () at hb-common.cc:203