diff --git a/lib/oxrdf/src/dataset.rs b/lib/oxrdf/src/dataset.rs
index eb655dea..f240a33a 100644
--- a/lib/oxrdf/src/dataset.rs
+++ b/lib/oxrdf/src/dataset.rs
@@ -185,6 +185,7 @@ impl Dataset {
             .map(move |q| self.decode_spog(q))
     }
 
+    #[allow(clippy::map_identity)]
     fn interned_quads_for_subject(
         &self,
         subject: &InternedSubject,
diff --git a/lib/oxrdfio/src/parser.rs b/lib/oxrdfio/src/parser.rs
index bc88cfc4..6258ba18 100644
--- a/lib/oxrdfio/src/parser.rs
+++ b/lib/oxrdfio/src/parser.rs
@@ -1,6 +1,6 @@
 //! Utilities to read RDF graphs and datasets.
 
-pub use crate::error::{ParseError, SyntaxError};
+pub use crate::error::ParseError;
 use crate::format::RdfFormat;
 use oxrdf::{BlankNode, GraphName, IriParseError, Quad, Subject, Term, Triple};
 #[cfg(feature = "async-tokio")]
diff --git a/lib/oxsdatatypes/src/date_time.rs b/lib/oxsdatatypes/src/date_time.rs
index f7c80431..c7a1c16a 100644
--- a/lib/oxsdatatypes/src/date_time.rs
+++ b/lib/oxsdatatypes/src/date_time.rs
@@ -420,19 +420,20 @@ impl Time {
     #[inline]
     #[must_use]
     pub fn checked_add_duration(self, rhs: impl Into<Duration>) -> Option<Self> {
-        DateTime::new(
-            1972,
-            12,
-            31,
-            self.hour(),
-            self.minute(),
-            self.second(),
-            self.timezone_offset(),
+        Some(
+            DateTime::new(
+                1972,
+                12,
+                31,
+                self.hour(),
+                self.minute(),
+                self.second(),
+                self.timezone_offset(),
+            )
+            .ok()?
+            .checked_add_duration(rhs)?
+            .into(),
         )
-        .ok()?
-        .checked_add_duration(rhs)?
-        .try_into()
-        .ok()
     }
 
     /// [op:subtract-dayTimeDuration-from-time](https://www.w3.org/TR/xpath-functions-31/#func-subtract-dayTimeDuration-from-time)
@@ -450,38 +451,40 @@ impl Time {
     #[inline]
     #[must_use]
     pub fn checked_sub_duration(self, rhs: impl Into<Duration>) -> Option<Self> {
-        DateTime::new(
-            1972,
-            12,
-            31,
-            self.hour(),
-            self.minute(),
-            self.second(),
-            self.timezone_offset(),
+        Some(
+            DateTime::new(
+                1972,
+                12,
+                31,
+                self.hour(),
+                self.minute(),
+                self.second(),
+                self.timezone_offset(),
+            )
+            .ok()?
+            .checked_sub_duration(rhs)?
+            .into(),
         )
-        .ok()?
-        .checked_sub_duration(rhs)?
-        .try_into()
-        .ok()
     }
 
     // [fn:adjust-time-to-timezone](https://www.w3.org/TR/xpath-functions-31/#func-adjust-time-to-timezone)
     #[inline]
     #[must_use]
     pub fn adjust(self, timezone_offset: Option<TimezoneOffset>) -> Option<Self> {
-        DateTime::new(
-            1972,
-            12,
-            31,
-            self.hour(),
-            self.minute(),
-            self.second(),
-            self.timezone_offset(),
+        Some(
+            DateTime::new(
+                1972,
+                12,
+                31,
+                self.hour(),
+                self.minute(),
+                self.second(),
+                self.timezone_offset(),
+            )
+            .ok()?
+            .adjust(timezone_offset)?
+            .into(),
         )
-        .ok()?
-        .adjust(timezone_offset)?
-        .try_into()
-        .ok()
     }
 
     /// Checks if the two values are [identical](https://www.w3.org/TR/xmlschema11-2/#identity).
diff --git a/lib/oxttl/src/lexer.rs b/lib/oxttl/src/lexer.rs
index 65dba56e..6dd1d024 100644
--- a/lib/oxttl/src/lexer.rs
+++ b/lib/oxttl/src/lexer.rs
@@ -350,9 +350,7 @@ impl N3Lexer {
                             let a = char::from(*data.get(i)?);
                             i += 1;
                             let b = char::from(*data.get(i)?);
-                            if !matches!(a, '0'..='9' | 'A'..='F' | 'a'..='f')
-                                || !matches!(b, '0'..='9' | 'A'..='F' | 'a'..='f')
-                            {
+                            if !a.is_ascii_hexdigit() || !b.is_ascii_hexdigit() {
                                 return Some((i + 1, Err((
                                     i - 2..=i, format!("escapes in IRIs should be % followed by two hexadecimal characters, found '%{a}{b}'")
                                 ).into())));
diff --git a/lib/src/sparql/eval.rs b/lib/src/sparql/eval.rs
index 6f52228d..2997b83d 100644
--- a/lib/src/sparql/eval.rs
+++ b/lib/src/sparql/eval.rs
@@ -1575,7 +1575,7 @@ impl SimpleEvaluator {
                             }
                         })
                     }
-                    Function::BNode => match parameters.get(0) {
+                    Function::BNode => match parameters.first() {
                         Some(id) => {
                             let id =
                                 self.expression_evaluator(id, encoded_variables, stat_children);
@@ -2612,7 +2612,7 @@ impl SimpleEvaluator {
                                         Some(Decimal::try_from(value).ok()?.into())
                                     }
                                     EncodedTerm::IntegerLiteral(value) => {
-                                        Some(Decimal::try_from(value).ok()?.into())
+                                        Some(Decimal::from(value).into())
                                     }
                                     EncodedTerm::DecimalLiteral(value) => Some(value.into()),
                                     EncodedTerm::BooleanLiteral(value) => {
@@ -2658,7 +2658,7 @@ impl SimpleEvaluator {
                                 Rc::new(move |tuple| match e(tuple)? {
                                     EncodedTerm::TimeLiteral(value) => Some(value.into()),
                                     EncodedTerm::DateTimeLiteral(value) => {
-                                        Some(Time::try_from(value).ok()?.into())
+                                        Some(Time::from(value).into())
                                     }
                                     EncodedTerm::SmallStringLiteral(value) => {
                                         parse_time_str(&value)
@@ -3250,7 +3250,7 @@ fn equals(a: &EncodedTerm, b: &EncodedTerm) -> Option<bool> {
             EncodedTerm::FloatLiteral(b) => Some(a == b),
             EncodedTerm::DoubleLiteral(b) => Some(Double::from(*a) == *b),
             EncodedTerm::IntegerLiteral(b) => Some(*a == Float::from(*b)),
-            EncodedTerm::DecimalLiteral(b) => Some(*a == (*b).try_into().ok()?),
+            EncodedTerm::DecimalLiteral(b) => Some(*a == (*b).into()),
             _ if b.is_unknown_typed_literal() => None,
             _ => Some(false),
         },
@@ -3258,7 +3258,7 @@ fn equals(a: &EncodedTerm, b: &EncodedTerm) -> Option<bool> {
             EncodedTerm::FloatLiteral(b) => Some(*a == Double::from(*b)),
             EncodedTerm::DoubleLiteral(b) => Some(a == b),
             EncodedTerm::IntegerLiteral(b) => Some(*a == Double::from(*b)),
-            EncodedTerm::DecimalLiteral(b) => Some(*a == (*b).try_into().ok()?),
+            EncodedTerm::DecimalLiteral(b) => Some(*a == (*b).into()),
             _ if b.is_unknown_typed_literal() => None,
             _ => Some(false),
         },
@@ -3271,8 +3271,8 @@ fn equals(a: &EncodedTerm, b: &EncodedTerm) -> Option<bool> {
             _ => Some(false),
         },
         EncodedTerm::DecimalLiteral(a) => match b {
-            EncodedTerm::FloatLiteral(b) => Some(Float::try_from(*a).ok()? == *b),
-            EncodedTerm::DoubleLiteral(b) => Some(Double::try_from(*a).ok()? == *b),
+            EncodedTerm::FloatLiteral(b) => Some(Float::from(*a) == *b),
+            EncodedTerm::DoubleLiteral(b) => Some(Double::from(*a) == *b),
             EncodedTerm::IntegerLiteral(b) => Some(*a == Decimal::from(*b)),
             EncodedTerm::DecimalLiteral(b) => Some(a == b),
             _ if b.is_unknown_typed_literal() => None,
@@ -3537,14 +3537,14 @@ fn partial_cmp_literals(
             EncodedTerm::FloatLiteral(b) => a.partial_cmp(b),
             EncodedTerm::DoubleLiteral(b) => Double::from(*a).partial_cmp(b),
             EncodedTerm::IntegerLiteral(b) => a.partial_cmp(&Float::from(*b)),
-            EncodedTerm::DecimalLiteral(b) => a.partial_cmp(&(*b).try_into().ok()?),
+            EncodedTerm::DecimalLiteral(b) => a.partial_cmp(&(*b).into()),
             _ => None,
         },
         EncodedTerm::DoubleLiteral(a) => match b {
             EncodedTerm::FloatLiteral(b) => a.partial_cmp(&(*b).into()),
             EncodedTerm::DoubleLiteral(b) => a.partial_cmp(b),
             EncodedTerm::IntegerLiteral(b) => a.partial_cmp(&Double::from(*b)),
-            EncodedTerm::DecimalLiteral(b) => a.partial_cmp(&(*b).try_into().ok()?),
+            EncodedTerm::DecimalLiteral(b) => a.partial_cmp(&(*b).into()),
             _ => None,
         },
         EncodedTerm::IntegerLiteral(a) => match b {
@@ -3555,8 +3555,8 @@ fn partial_cmp_literals(
             _ => None,
         },
         EncodedTerm::DecimalLiteral(a) => match b {
-            EncodedTerm::FloatLiteral(b) => Float::try_from(*a).ok()?.partial_cmp(b),
-            EncodedTerm::DoubleLiteral(b) => Double::try_from(*a).ok()?.partial_cmp(b),
+            EncodedTerm::FloatLiteral(b) => Float::from(*a).partial_cmp(b),
+            EncodedTerm::DoubleLiteral(b) => Double::from(*a).partial_cmp(b),
             EncodedTerm::IntegerLiteral(b) => a.partial_cmp(&Decimal::from(*b)),
             EncodedTerm::DecimalLiteral(b) => a.partial_cmp(b),
             _ => None,
diff --git a/lib/src/storage/backend/mod.rs b/lib/src/storage/backend/mod.rs
index 0fea9616..9261fd56 100644
--- a/lib/src/storage/backend/mod.rs
+++ b/lib/src/storage/backend/mod.rs
@@ -4,9 +4,7 @@
 #[cfg(target_family = "wasm")]
 pub use fallback::{ColumnFamily, ColumnFamilyDefinition, Db, Iter, Reader, Transaction};
 #[cfg(not(target_family = "wasm"))]
-pub use rocksdb::{
-    ColumnFamily, ColumnFamilyDefinition, Db, Iter, Reader, SstFileWriter, Transaction,
-};
+pub use rocksdb::{ColumnFamily, ColumnFamilyDefinition, Db, Iter, Reader, Transaction};
 
 #[cfg(target_family = "wasm")]
 mod fallback;