impl core::error::Error for Error

CHANGELOG.md

@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 * For `Runner::input_byte` the buffer `B` does not need to be `Sized`
 
+### Added
+
+* `impl core::error::Error for Error` on rust >= 1.81
+
 ## [v0.6.0] - 2024-08-30
 
 ### Changed

Cargo.toml

@@ -11,6 +11,7 @@ readme = "README.md"
 [dependencies]
 embedded-io = "0.6.1"
 noline = { version = "0.5.0", optional = true }
+rustversion = "1.0.17"
 
 [features]
 default = ["echo"]

src/lib.rs

@@ -127,6 +127,15 @@ pub enum Error {
     NotFound,
 }
 
+impl core::fmt::Display for Error {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
+        core::fmt::Debug::fmt(self, f)
+    }
+}
+
+#[rustversion::since(1.81)]
+impl core::error::Error for Error {}
+
 /// Looks for the named parameter in the parameter list of the item, then
 /// finds the correct argument.
 ///