==13570== 32 bytes in 1 blocks are still reachable in loss record 7 of 24
==13570==    at 0x4C2FB55: calloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==13570==    by 0x64B3272: ??? (in /usr/lib/x86_64-linux-gnu/libgnutls.so.30.6.2)
==13570==    by 0x652E379: ??? (in /usr/lib/x86_64-linux-gnu/libgnutls.so.30.6.2)
==13570==    by 0x649FB3A: gnutls_global_init (in /usr/lib/x86_64-linux-gnu/libgnutls.so.30.6.2)
==13570==    by 0x64811CB: ??? (in /usr/lib/x86_64-linux-gnu/libgnutls.so.30.6.2)
==13570==    by 0x40106B9: call_init.part.0 (dl-init.c:72)
==13570==    by 0x40107CA: call_init (dl-init.c:30)
==13570==    by 0x40107CA: _dl_init (dl-init.c:120)
==13570==    by 0x4000C69: ??? (in /lib/x86_64-linux-gnu/ld-2.23.so)