Merge pull request #3 from thomaseizinger/feat/core-error

feat: implement `core::Error` for `ExceedsCapacity`

Author: tindzk

src/errors.rs

@@ -27,3 +27,5 @@ impl core::fmt::Display for ExceedsCapacity {
     ))
   }
 }
+
+impl core::error::Error for ExceedsCapacity {}