Use log::error! for bad mandatory (#8521)

To make the life of people easier ;)

substrate/primitives/runtime/src/lib.rs

@@ -450,7 +450,7 @@ pub type DispatchResult = sp_std::result::Result<(), DispatchError>;
 pub type DispatchResultWithInfo<T> = sp_std::result::Result<T, DispatchErrorWithPostInfo<T>>;
 
 /// Reason why a dispatch call failed.
-#[derive(Eq, Clone, Copy, Encode, Decode, RuntimeDebug)]
+#[derive(Eq, Clone, Copy, Encode, Decode, Debug)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub enum DispatchError {
 	/// Some error occurred.
@@ -535,7 +535,7 @@ impl From<crate::traits::StoredMapError> for DispatchError {
 }
 
 /// Description of what went wrong when trying to complete an operation on a token.
-#[derive(Eq, PartialEq, Clone, Copy, Encode, Decode, RuntimeDebug)]
+#[derive(Eq, PartialEq, Clone, Copy, Encode, Decode, Debug)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub enum TokenError {
 	/// Funds are unavailable.