set expr failure to trace level

src/parser.rs

@@ -2,7 +2,7 @@ use std::{any::type_name, borrow::Borrow, collections::BTreeMap, marker::Phantom
 
 use derive_new::new;
 use fasteval::Evaler;
-use log::{debug, error};
+use log::{debug, error, trace};
 use nom::{
     AsChar, Compare, Finish, IResult, Input, Parser as NomParser,
     branch::alt,
@@ -311,7 +311,7 @@ where
             i.as_ref()
                 .parse::<Expression>()
                 .inspect_err(|e| {
-                    error!(
+                    trace!(
                         "failed parsing expression {expr} with {err}",
                         expr = i.as_ref(),
                         err = e
@@ -325,7 +325,7 @@ where
                             &mut BTreeMap::from_iter(variables.clone().drain(..)),
                         )
                         .inspect_err(|e| {
-                            error!(
+                            trace!(
                                 "failed expression evaluation {expr:?} with {err}",
                                 expr = e,
                                 err = e