diff --git a/py/src/lib.rs b/py/src/lib.rs
index 89fbbdfa..200b2f69 100644
--- a/py/src/lib.rs
+++ b/py/src/lib.rs
@@ -1,9 +1,10 @@
 // SPDX-License-Identifier: Apache-2.0
 
-// This happens in PyO3 generated code, and there doesn't seem to be a more
+// These happen in PyO3 generated code, and there doesn't seem to be a more
 // narrow scope that this can be disabled in (clippy seems a bit confused about
 // the code causing the warning, in general).
 #![allow(clippy::needless_option_as_deref)]
+#![allow(clippy::borrow_deref_ref)]
 
 use pyo3::exceptions::PyValueError;
 use pyo3::prelude::*;
diff --git a/rs/src/export/mod.rs b/rs/src/export/mod.rs
index 2a865667..9f7d0964 100644
--- a/rs/src/export/mod.rs
+++ b/rs/src/export/mod.rs
@@ -10,7 +10,7 @@ mod proto;
 use crate::output::parse_result;
 
 /// Supported output formats for exporting.
-#[derive(Clone, Copy, Debug, PartialEq)]
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 pub enum Format {
     /// Emit a newline-separated, flattened list of diagnostics.
     Diagnostics,
diff --git a/rs/src/input/proto.rs b/rs/src/input/proto.rs
index 27c4a62f..6cd28959 100644
--- a/rs/src/input/proto.rs
+++ b/rs/src/input/proto.rs
@@ -17,7 +17,8 @@ use crate::output::primitive_data;
 
 use heck::ToUpperCamelCase;
 
-#[allow(clippy::large_enum_variant)]
+#[allow(clippy::large_enum_variant)] // caused by generated code
+#[allow(clippy::derive_partial_eq_without_eq)] // caused by generated code
 pub mod substrait {
     include!(concat!(env!("OUT_DIR"), "/substrait.rs"));
     pub mod extensions {
diff --git a/rs/src/output/comment.rs b/rs/src/output/comment.rs
index 45542ad0..9ddd3ca2 100644
--- a/rs/src/output/comment.rs
+++ b/rs/src/output/comment.rs
@@ -11,7 +11,7 @@ use crate::output::path;
 
 /// Representation of a comment message intended only for human consumption.
 /// Includes basic formatting information.
-#[derive(Clone, Debug, PartialEq, Default)]
+#[derive(Clone, Debug, PartialEq, Eq, Default)]
 pub struct Comment {
     /// Formatting elements and spans that make up the comment.
     elements: Vec<Element>,
@@ -176,7 +176,7 @@ impl From<String> for Comment {
 }
 
 /// A comment element.
-#[derive(Clone, Debug, PartialEq)]
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub enum Element {
     /// A span of text. Should not include newlines.
     Span(Span),
@@ -195,7 +195,7 @@ pub enum Element {
 }
 
 /// Like Comment, but single-line.
-#[derive(Clone, Debug, PartialEq, Default)]
+#[derive(Clone, Debug, PartialEq, Default, Eq)]
 pub struct Brief {
     /// Spans that make up the comment. These are simply concatenated, but
     /// spans may contain optional formatting information.
@@ -293,7 +293,7 @@ impl From<Brief> for Comment {
 }
 
 /// A span of text within a comment.
-#[derive(Clone, Debug, PartialEq)]
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub struct Span {
     /// The span of text.
     pub text: String,
@@ -331,7 +331,7 @@ fn merge_spans(mut a: Span, b: Span) -> (Span, Option<Span>) {
 }
 
 /// A link to something.
-#[derive(Clone, Debug, PartialEq)]
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub enum Link {
     /// Link to another node in the tree, via an absolute node path.
     Path(path::PathBuf),
diff --git a/rs/src/output/extension.rs b/rs/src/output/extension.rs
index b2e2b7af..02a0afc7 100644
--- a/rs/src/output/extension.rs
+++ b/rs/src/output/extension.rs
@@ -119,7 +119,7 @@ impl<T> std::fmt::Display for Reference<T> {
 }
 
 /// User-defined type class.
-#[derive(Clone, Debug, PartialEq, Default)]
+#[derive(Clone, Debug, PartialEq, Eq, Default)]
 pub struct DataType {
     /// The underlying structure of the type.
     pub structure: Vec<(String, data_type::Simple)>,
@@ -132,7 +132,7 @@ pub struct DataType {
 }
 
 /// A parameter slot for a user-defined data type.
-#[derive(Clone, Debug, PartialEq)]
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub struct DataTypeParameterSlot {
     /// YAML-provided name of the parameter.
     pub name: String,
@@ -149,7 +149,7 @@ pub struct DataTypeParameterSlot {
 }
 
 /// Expected metatype and bounds for a type parameter.
-#[derive(Clone, Debug, PartialEq)]
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub enum DataTypeParameterBounds {
     /// The parameter must be bound to a (nested) data type.
     DataType,
@@ -209,7 +209,7 @@ impl TypeVariation {
 }
 
 /// Type variation function behavior.
-#[derive(Clone, Debug, PartialEq)]
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub enum FunctionBehavior {
     Inherits,
     Separate,
@@ -222,7 +222,7 @@ impl Default for FunctionBehavior {
 }
 
 /// Function extension.
-#[derive(Clone, Debug, PartialEq, Default)]
+#[derive(Clone, Debug, PartialEq, Eq, Default)]
 pub struct Function {
     // TODO: need much more information here to do type checking.
 }
diff --git a/rs/src/output/parse_result.rs b/rs/src/output/parse_result.rs
index 29130846..9ce96fda 100644
--- a/rs/src/output/parse_result.rs
+++ b/rs/src/output/parse_result.rs
@@ -13,7 +13,7 @@ use crate::output::tree;
 /// are more sensible in the context of a diagnostic, while the names for
 /// Validity are more sensible when talking about a validation result as a
 /// whole.
-#[derive(Clone, Copy, Debug, PartialEq)]
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 pub enum Validity {
     /// The plan is valid.
     Valid,
diff --git a/rs/src/output/path.rs b/rs/src/output/path.rs
index 98c935f1..0c4f7a63 100644
--- a/rs/src/output/path.rs
+++ b/rs/src/output/path.rs
@@ -11,7 +11,7 @@
 use crate::util;
 
 /// Element of a path to some field of a protobuf message and/or YAML file.
-#[derive(Clone, Debug, PartialEq)]
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub enum PathElement {
     /// Refers to an optional protobuf field with the given name within the
     /// message, or a YAML map entry with the given key.
@@ -63,7 +63,7 @@ impl PathElement {
 }
 
 /// Refers to a location within a protobuf message.
-#[derive(Clone, Debug, PartialEq)]
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub struct PathBuf {
     pub root: &'static str,
     pub elements: Vec<PathElement>,
diff --git a/rs/src/output/tree.rs b/rs/src/output/tree.rs
index c3d10252..92b51848 100644
--- a/rs/src/output/tree.rs
+++ b/rs/src/output/tree.rs
@@ -214,7 +214,7 @@ pub enum NodeType {
 }
 
 /// Semantical information about a node.
-#[derive(Clone, Copy, Debug, PartialEq)]
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 pub enum Class {
     /// Used for nodes for which no better classification exists.
     Misc,
diff --git a/rs/src/parse/expressions/literals.rs b/rs/src/parse/expressions/literals.rs
index 9c5fdf78..f7a19563 100644
--- a/rs/src/parse/expressions/literals.rs
+++ b/rs/src/parse/expressions/literals.rs
@@ -587,7 +587,7 @@ fn parse_interval_year_to_month(
         }
     });
     let months = x.months.saturating_add(x.years.saturating_mul(12));
-    if months < -120000 || months > 120000 {
+    if !(-120000..=120000).contains(&months) {
         diagnostic!(
             y,
             Error,
diff --git a/rs/src/parse/expressions/references/mod.rs b/rs/src/parse/expressions/references/mod.rs
index 5775a01c..0a38430b 100644
--- a/rs/src/parse/expressions/references/mod.rs
+++ b/rs/src/parse/expressions/references/mod.rs
@@ -36,7 +36,7 @@ impl Default for Root {
 }
 
 /// Description of a reference path.
-#[derive(Clone, Debug, PartialEq)]
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub struct ReferencePath {
     // *Reversed* list of segments.
     segments: Vec<String>,
diff --git a/rs/src/parse/mod.rs b/rs/src/parse/mod.rs
index d35e493b..6bbde72a 100644
--- a/rs/src/parse/mod.rs
+++ b/rs/src/parse/mod.rs
@@ -59,8 +59,8 @@
 //!  - returning as many diagnostics as possible, rather than just stopping
 //!    at the first sight of trouble.
 //!
-//! Diagnostics can be pushed into the parser context using the [`diagnostic!`]
-//! and [`ediagnostic!`] macros. The latter allows third-party `Err` types to
+//! Diagnostics can be pushed into the parser context using the `diagnostic!`
+//! and `ediagnostic!` macros. The latter allows third-party `Err` types to
 //! be pushed as the message, the former uses a [format!] syntax. However,
 //! sometimes it also very useful to just use the `?` operator for something.
 //! Therefore, parse functions also return
@@ -74,8 +74,7 @@
 //! found in the docs for the [diagnostic](crate::output::diagnostic) module.
 //!
 //! Beyond diagnostics, it's also possible to push comments into the context.
-//! This can be done using the [`comment!`] and [`link!`] macros, or, for more
-//! control, by pushing a []
+//! This can be done using the `comment!` and `link!` macros.
 //!
 //! ## Data types
 //!