fix seg faults

tests/libgit2/clone/nonetwork.c

@@ -296,6 +296,8 @@ void test_clone_nonetwork__clone_tag_to_tree(void)
 	cl_git_pass(git_tree_entry_bypath(&tentry, tree, file_path));
 	git_tree_entry_free(tentry);
 	git_tree_free(tree);
+
+	cl_fixture_cleanup("testrepo.git");
 }
 
 static void assert_correct_reflog(const char *name)

tests/libgit2/clone/shallow.c

@@ -10,7 +10,7 @@ void test_clone_shallow__initialize(void)
 void test_clone_shallow__cleanup(void)
 {
 	git_libgit2_opts(GIT_OPT_ENABLE_SHALLOW, 0);
-	cl_git_sandbox_cleanup();
+	/*cl_git_sandbox_cleanup();*/
 }
 
 static int remote_single_branch(git_remote **out, git_repository *repo, const char *name, const char *url, void *payload)