Skip tests which require networking

Signed-off-by: Igor Raits <ignatenkobrain@fedoraproject.org>

rust-socket2.spec

@@ -107,7 +107,9 @@ which use "unix" feature of "%{crate}" crate.
 
 %if %{with check}
 %check
-%cargo_test
+# The test requires networking to be present
+# https://github.com/alexcrichton/socket2-rs/issues/52
+%cargo_test -- -- --skip socket::test::connect_timeout_unrouteable
 %endif
 
 %changelog