diff --git a/src/stdlib/assert.rs b/src/stdlib/assert.rs
index 069709e6a..382620737 100644
--- a/src/stdlib/assert.rs
+++ b/src/stdlib/assert.rs
@@ -1,24 +1,21 @@
 use crate::compiler::prelude::*;
 
 fn assert(condition: Value, message: Option<Value>, format: Option<String>) -> Resolved {
-    match condition.try_boolean()? {
-        true => Ok(true.into()),
-        false => {
-            if let Some(message) = message {
-                let message = message.try_bytes_utf8_lossy()?.into_owned();
-                Err(ExpressionError::Error {
-                    message: message.clone(),
-                    labels: vec![],
-                    notes: vec![Note::UserErrorMessage(message)],
-                })
-            } else {
-                let message = match format {
-                    Some(string) => format!("assertion failed: {string}"),
-                    None => "assertion failed".to_owned(),
-                };
-                Err(ExpressionError::from(message))
-            }
-        }
+    if condition.try_boolean()? {
+        Ok(true.into())
+    } else if let Some(message) = message {
+        let message = message.try_bytes_utf8_lossy()?.into_owned();
+        Err(ExpressionError::Error {
+            message: message.clone(),
+            labels: vec![],
+            notes: vec![Note::UserErrorMessage(message)],
+        })
+    } else {
+        let message = match format {
+            Some(string) => format!("assertion failed: {string}"),
+            None => "assertion failed".to_owned(),
+        };
+        Err(ExpressionError::from(message))
     }
 }
 
diff --git a/src/stdlib/compact.rs b/src/stdlib/compact.rs
index ae56d9171..49b9facb3 100644
--- a/src/stdlib/compact.rs
+++ b/src/stdlib/compact.rs
@@ -291,13 +291,13 @@ mod test {
                 vec!["".into(), Value::Null, "".into()], // original
                 CompactOptions {
                     string: false,
-                    ..Default::default()
+                    ..CompactOptions::default()
                 },
             ),
             (
                 vec![1.into(), 2.into()],
                 vec![1.into(), Value::Array(vec![]), 2.into()],
-                Default::default(),
+                CompactOptions::default(),
             ),
             (
                 vec![1.into(), Value::Array(vec![3.into()]), 2.into()],
@@ -306,7 +306,7 @@ mod test {
                     Value::Array(vec![Value::Null, 3.into(), Value::Null]),
                     2.into(),
                 ],
-                Default::default(),
+                CompactOptions::default(),
             ),
             (
                 vec![1.into(), 2.into()],
@@ -315,7 +315,7 @@ mod test {
                     Value::Array(vec![Value::Null, Value::Null]),
                     2.into(),
                 ],
-                Default::default(),
+                CompactOptions::default(),
             ),
             (
                 vec![
@@ -334,7 +334,7 @@ mod test {
                     ])),
                     2.into(),
                 ],
-                Default::default(),
+                CompactOptions::default(),
             ),
         ];
 
@@ -359,7 +359,7 @@ mod test {
                 }, // original
                 CompactOptions {
                     string: false,
-                    ..Default::default()
+                    ..CompactOptions::default()
                 },
             ),
             (
@@ -372,7 +372,7 @@ mod test {
                     "key2" => Value::Array(vec![]),
                     "key3" => Value::from(2),
                 },
-                Default::default(),
+                CompactOptions::default(),
             ),
             (
                 ObjectMap::from([
@@ -395,7 +395,7 @@ mod test {
                     ),
                     (KeyString::from("key3"), Value::from(2)),
                 ]),
-                Default::default(),
+                CompactOptions::default(),
             ),
             (
                 ObjectMap::from([
@@ -416,7 +416,7 @@ mod test {
                 ]),
                 CompactOptions {
                     recursive: false,
-                    ..Default::default()
+                    ..CompactOptions::default()
                 },
             ),
             (
@@ -432,7 +432,7 @@ mod test {
                     ),
                     (KeyString::from("key3"), Value::from(2)),
                 ]),
-                Default::default(),
+                CompactOptions::default(),
             ),
             (
                 btreemap! {
@@ -445,7 +445,7 @@ mod test {
                     "key2" => Value::Array(vec![Value::Null, 2.into(), Value::Null]),
                     "key3" => Value::from(2),
                 },
-                Default::default(),
+                CompactOptions::default(),
             ),
         ];
 
diff --git a/src/stdlib/encode_percent.rs b/src/stdlib/encode_percent.rs
index 401a03162..5f3948729 100644
--- a/src/stdlib/encode_percent.rs
+++ b/src/stdlib/encode_percent.rs
@@ -20,7 +20,7 @@ fn encode_percent(value: Value, ascii_set: &Bytes) -> Resolved {
     Ok(utf8_percent_encode(&string, ascii_set).to_string().into())
 }
 
-/// https://url.spec.whatwg.org/#fragment-percent-encode-set
+/// <https://url.spec.whatwg.org/#fragment-percent-encode-set>
 const FRAGMENT: &AsciiSet = &percent_encoding::CONTROLS
     .add(b' ')
     .add(b'"')
@@ -28,7 +28,7 @@ const FRAGMENT: &AsciiSet = &percent_encoding::CONTROLS
     .add(b'>')
     .add(b'`');
 
-/// https://url.spec.whatwg.org/#query-percent-encode-set
+/// <https://url.spec.whatwg.org/#query-percent-encode-set>
 const QUERY: &AsciiSet = &percent_encoding::CONTROLS
     .add(b' ')
     .add(b'"')
@@ -36,13 +36,13 @@ const QUERY: &AsciiSet = &percent_encoding::CONTROLS
     .add(b'<')
     .add(b'>');
 
-/// https://url.spec.whatwg.org/#special-percent-encode-set
+/// <https://url.spec.whatwg.org/#special-percent-encode-set>
 const SPECIAL: &AsciiSet = &QUERY.add(b'\'');
 
-/// https://url.spec.whatwg.org/#path-percent-encode-set
+/// <https://url.spec.whatwg.org/#path-percent-encode-set>
 const PATH: &AsciiSet = &QUERY.add(b'?').add(b'`').add(b'{').add(b'}');
 
-/// https://url.spec.whatwg.org/#userinfo-percent-encode-set
+/// <https://url.spec.whatwg.org/#userinfo-percent-encode-set>
 const USERINFO: &AsciiSet = &PATH
     .add(b'/')
     .add(b':')
@@ -55,10 +55,10 @@ const USERINFO: &AsciiSet = &PATH
     .add(b'^')
     .add(b'|');
 
-/// https://url.spec.whatwg.org/#component-percent-encode-set
+/// <https://url.spec.whatwg.org/#component-percent-encode-set>
 const COMPONENT: &AsciiSet = &USERINFO.add(b'$').add(b'%').add(b'&').add(b'+').add(b',');
 
-/// https://url.spec.whatwg.org/#application-x-www-form-urlencoded-percent-encode-set
+/// <https://url.spec.whatwg.org/#application-x-www-form-urlencoded-percent-encode-set>
 const WWW_FORM_URLENCODED: &AsciiSet =
     &COMPONENT.add(b'!').add(b'\'').add(b'(').add(b')').add(b'~');
 
diff --git a/src/stdlib/log.rs b/src/stdlib/log.rs
index 9e9be2922..508f2d76a 100644
--- a/src/stdlib/log.rs
+++ b/src/stdlib/log.rs
@@ -170,7 +170,7 @@ mod tests {
             value!(1),
             &Bytes::from("warn"),
             value!("simple test message"),
-            Default::default(),
+            Span::default(),
         )
         .unwrap();
 
diff --git a/src/stdlib/map_values.rs b/src/stdlib/map_values.rs
index f62d12a3a..6ef908fe4 100644
--- a/src/stdlib/map_values.rs
+++ b/src/stdlib/map_values.rs
@@ -13,9 +13,9 @@ where
 
     for item in iter.by_ref() {
         let value = match item {
-            IterItem::KeyValue(_, value) => value,
-            IterItem::IndexValue(_, value) => value,
-            IterItem::Value(value) => value,
+            IterItem::KeyValue(_, value)
+            | IterItem::IndexValue(_, value)
+            | IterItem::Value(value) => value,
         };
 
         runner.map_value(ctx, value)?;
diff --git a/src/stdlib/mod.rs b/src/stdlib/mod.rs
index eb9dc52ec..728debb3d 100644
--- a/src/stdlib/mod.rs
+++ b/src/stdlib/mod.rs
@@ -1,23 +1,9 @@
-#![deny(
-    warnings,
-    clippy::all,
-    clippy::pedantic,
-    unreachable_pub,
-    unused_allocation,
-    unused_extern_crates,
-    unused_assignments,
-    unused_comparisons
-)]
+#![deny(warnings, clippy::pedantic)]
 #![allow(
     deprecated,
     clippy::cast_possible_truncation, // allowed in initial deny commit
     clippy::cast_precision_loss, // allowed in initial deny commit
     clippy::cast_sign_loss, // allowed in initial deny commit
-    clippy::default_trait_access, // allowed in initial deny commit
-    clippy::doc_markdown, // allowed in initial deny commit
-    clippy::inefficient_to_string, // allowed in initial deny commit
-    clippy::match_bool, // allowed in initial deny commit
-    clippy::match_same_arms, // allowed in initial deny commit
     clippy::needless_pass_by_value, // allowed in initial deny commit
 )]
 
diff --git a/src/stdlib/parse_aws_alb_log.rs b/src/stdlib/parse_aws_alb_log.rs
index 2a774af69..b71c6a8d3 100644
--- a/src/stdlib/parse_aws_alb_log.rs
+++ b/src/stdlib/parse_aws_alb_log.rs
@@ -253,9 +253,10 @@ fn parse_log(mut input: &str) -> ExpressionResult<Value> {
     field_raw!("classification_reason", take_quoted1);
     field_tid!("traceability_id");
 
-    match input.is_empty() {
-        true => Ok(log.into()),
-        false => Err(format!(r#"Log should be fully consumed: "{input}""#).into()),
+    if input.is_empty() {
+        Ok(log.into())
+    } else {
+        Err(format!(r#"Log should be fully consumed: "{input}""#).into())
     }
 }
 
diff --git a/src/stdlib/parse_cef.rs b/src/stdlib/parse_cef.rs
index 8cd422047..037eb1773 100644
--- a/src/stdlib/parse_cef.rs
+++ b/src/stdlib/parse_cef.rs
@@ -293,7 +293,7 @@ fn parse_value(input: &str) -> IResult<&str, String, VerboseError<&str>> {
     ))(input)
 }
 
-/// As take take_till1 but can have condition on input instead of Input::Item.
+/// As take `take_till1` but can have condition on input instead of `Input::Item`.
 fn take_till1_input<'a, F: Fn(&'a str) -> bool, Error: ParseError<&'a str>>(
     cond: F,
 ) -> impl Fn(&'a str) -> IResult<&'a str, &'a str, Error> {
diff --git a/src/stdlib/parse_key_value.rs b/src/stdlib/parse_key_value.rs
index 8ce1b498f..7d62529eb 100644
--- a/src/stdlib/parse_key_value.rs
+++ b/src/stdlib/parse_key_value.rs
@@ -387,10 +387,9 @@ fn escape_char(c: char, rest: &mut Peekable<Chars>) -> char {
                 let _ = rest.next();
                 '\"'
             }
-            // ignore escape sequences not added by encode_key_value and return the backslash untouched
-            Some(_) => c,
-            // trailing escape char is a little odd... Might need to error here!
-            None => c,
+            // Some(_): ignore escape sequences not added by encode_key_value and return the backslash untouched
+            // None: // trailing escape char is a little odd... Might need to error here!
+            Some(_) | None => c,
         }
     } else {
         c
diff --git a/src/stdlib/parse_nginx_log.rs b/src/stdlib/parse_nginx_log.rs
index a27184ff5..e11b0b7d0 100644
--- a/src/stdlib/parse_nginx_log.rs
+++ b/src/stdlib/parse_nginx_log.rs
@@ -121,9 +121,7 @@ fn regex_for_format(format: &[u8]) -> &Regex {
 
 fn time_format_for_format(format: &[u8]) -> String {
     match format {
-        b"combined" => "%d/%b/%Y:%T %z".to_owned(),
-        b"ingress_upstreaminfo" => "%d/%b/%Y:%T %z".to_owned(),
-        b"main" => "%d/%b/%Y:%T %z".to_owned(),
+        b"combined" | b"ingress_upstreaminfo" | b"main" => "%d/%b/%Y:%T %z".to_owned(),
         b"error" => "%Y/%m/%d %H:%M:%S".to_owned(),
         _ => unreachable!(),
     }
diff --git a/src/stdlib/parse_syslog.rs b/src/stdlib/parse_syslog.rs
index c22751465..c0e519bb7 100644
--- a/src/stdlib/parse_syslog.rs
+++ b/src/stdlib/parse_syslog.rs
@@ -150,7 +150,7 @@ fn message_to_value(message: Message<&str>) -> Value {
     for element in message.structured_data {
         let mut sdata = BTreeMap::new();
         for (name, value) in element.params() {
-            sdata.insert(name.to_string().into(), value.into());
+            sdata.insert((*name).into(), value.into());
         }
         result.insert(element.id.to_string().into(), sdata.into());
     }
diff --git a/src/stdlib/string_utils.rs b/src/stdlib/string_utils.rs
index b87eccba1..8f74f07dd 100644
--- a/src/stdlib/string_utils.rs
+++ b/src/stdlib/string_utils.rs
@@ -2,8 +2,9 @@ use crate::prelude::{Value, ValueError, VrlValueConvert};
 
 pub(crate) fn convert_to_string(value: Value, to_lowercase: bool) -> Result<String, ValueError> {
     let string = value.try_bytes_utf8_lossy()?;
-    Ok(match to_lowercase {
-        true => string.to_lowercase(),
-        false => string.to_string(),
+    Ok(if to_lowercase {
+        string.to_lowercase()
+    } else {
+        string.to_string()
     })
 }