Correctly fix compilation errors.
@@ -47,6 +47,9 @@ extern crate rusoto_core;
extern crate chrono;
extern crate hyper;
+// Logging macro is part of rest-json services
+#[cfg(feature = "needs_serde_derive")]
+#[macro_use]
extern crate log;
extern crate md5;
extern crate rustc_serialize;
