support String error

src/lib.rs

@@ -57,6 +57,12 @@ impl From<std::io::Error> for Rear {
 	}
 }
 
+impl From<String> for Rear {
+	fn from(error: String) -> Self {
+		Self { message: error.clone(), error: error.into() }
+	}
+}
+
 #[cfg(feature = "serde_json")]
 impl From<serde_json::Error> for Rear {
 	fn from(error: serde_json::Error) -> Self {