1 files changed, 5 insertions, 0 deletions
diff --git a/src/error.rs b/src/error.rs
index 094171d..fed741a 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -2,9 +2,14 @@ use std;
 
 use tag::Tag;
 
+/// Error types generated by this implementation
 #[derive(Debug)]
 pub enum Error {
+    /// The associated tag was added to an `RtMessage` in non-increasing order.
     TagNotStrictlyIncreasing(Tag),
+
+    /// Encoding failed. The associated `std::io::Error` should provide
+    /// more information.
     EncodingFailure(std::io::Error),
 }