message: Implement Debug for NeqoQlog
  In order to include a NeqoQlogRef (and by extension a NeqoQlog)
  in a struct that derives Debug, NeqoQlog must itself implement
  the Debug trait.
diff: // except according to those terms.
  use std::cell::RefCell;
  +use std::fmt;
  use std::io::Write;
  use std::rc::Rc;
  use std::sync::Once;
  @@ -28,6 +29,12 @@ impl NeqoQlog {
  }
  }
  +impl fmt::Debug for NeqoQlog {
  + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
  + write!(f, "NeqoQlog with zero time of {:?}", self.zero_time)
  + }
  +}
  +
  pub type NeqoQlogRef = Rc<RefCell<NeqoQlog>>;
  static INIT_ONCE: Once = Once::new();
  