diff --git a/.rustfmt.toml b/.rustfmt.toml
index cd24b3fe..b47ba7c7 100644
--- a/.rustfmt.toml
+++ b/.rustfmt.toml
@@ -1,4 +1,6 @@
+comment_width = 100
 edition = "2018"
 merge_imports = true
 newline_style = "Unix"
 use_small_heuristics = "Max"
+wrap_comments = true
diff --git a/ruma-api/src/lib.rs b/ruma-api/src/lib.rs
index 9220b8fa..9c47c087 100644
--- a/ruma-api/src/lib.rs
+++ b/ruma-api/src/lib.rs
@@ -53,48 +53,44 @@ use http::Method;
 ///
 /// This will generate a `ruma_api::Metadata` value to be used for the `ruma_api::Endpoint`'s
 /// associated constant, single `Request` and `Response` structs, and the necessary trait
-/// implementations to convert the request into a `http::Request` and to create a response from a
-/// `http::Response` and vice versa.
+/// implementations to convert the request into a `http::Request` and to create a response from
+/// a `http::Response` and vice versa.
 ///
 /// The details of each of the three sections of the macros are documented below.
 ///
 /// ## Metadata
 ///
-/// *   `description`: A short description of what the endpoint does.
-/// *   `method`: The HTTP method used for requests to the endpoint.
-///     It's not necessary to import `http::Method`'s associated constants. Just write
-///     the value as if it was imported, e.g. `GET`.
-/// *   `name`: A unique name for the endpoint.
-///     Generally this will be the same as the containing module.
-/// *   `path`: The path component of the URL for the endpoint, e.g. "/foo/bar".
-///     Components of the path that are parameterized can indicate a varible by using a Rust
-///     identifier prefixed with a colon, e.g. `/foo/:some_parameter`.
-///     A corresponding query string parameter will be expected in the request struct (see below
-///     for details).
-/// *   `rate_limited`: Whether or not the endpoint enforces rate limiting on requests.
-/// *   `authentication`: What authentication scheme the endpoint uses.
+/// * `description`: A short description of what the endpoint does.
+/// * `method`: The HTTP method used for requests to the endpoint. It's not necessary to import
+///   `http::Method`'s associated constants. Just write the value as if it was imported, e.g.
+///   `GET`.
+/// * `name`: A unique name for the endpoint. Generally this will be the same as the containing
+///   module.
+/// * `path`: The path component of the URL for the endpoint, e.g. "/foo/bar". Components of
+///   the path that are parameterized can indicate a varible by using a Rust identifier
+///   prefixed with a colon, e.g. `/foo/:some_parameter`. A corresponding query string
+///   parameter will be expected in the request struct (see below for details).
+/// * `rate_limited`: Whether or not the endpoint enforces rate limiting on requests.
+/// * `authentication`: What authentication scheme the endpoint uses.
 ///
 /// ## Request
 ///
 /// The request block contains normal struct field definitions.
 /// Doc comments and attributes are allowed as normal.
-/// There are also a few special attributes available to control how the struct is converted into a
-/// `http::Request`:
+/// There are also a few special attributes available to control how the struct is converted
+/// into a `http::Request`:
 ///
-/// *   `#[ruma_api(header = HEADER_NAME)]`: Fields with this attribute will be treated as HTTP
-///     headers on the request.
-///     The value must implement `AsRef<str>`.
-///     Generally this is a `String`.
-///     The attribute value shown above as `HEADER_NAME` must be a header name constant from
-///     `http::header`, e.g. `CONTENT_TYPE`.
-/// *   `#[ruma_api(path)]`: Fields with this attribute will be inserted into the matching path
-///     component of the request URL.
-/// *   `#[ruma_api(query)]`: Fields with this attribute will be inserting into the URL's query
-///     string.
-/// *   `#[ruma_api(query_map)]`: Instead of individual query fields, one query_map field, of any
-///     type that implements `IntoIterator<Item = (String, String)>` (e.g.
-///     `HashMap<String, String>`, can be used for cases where an endpoint supports arbitrary query
-///     parameters.
+/// * `#[ruma_api(header = HEADER_NAME)]`: Fields with this attribute will be treated as HTTP
+///   headers on the request. The value must implement `AsRef<str>`. Generally this is a
+///   `String`. The attribute value shown above as `HEADER_NAME` must be a header name constant
+///   from `http::header`, e.g. `CONTENT_TYPE`.
+/// * `#[ruma_api(path)]`: Fields with this attribute will be inserted into the matching path
+///   component of the request URL.
+/// * `#[ruma_api(query)]`: Fields with this attribute will be inserting into the URL's query
+///   string.
+/// * `#[ruma_api(query_map)]`: Instead of individual query fields, one query_map field, of any
+///   type that implements `IntoIterator<Item = (String, String)>` (e.g. `HashMap<String,
+///   String>`, can be used for cases where an endpoint supports arbitrary query parameters.
 ///
 /// Any field that does not include one of these attributes will be part of the request's JSON
 /// body.
@@ -106,12 +102,10 @@ use http::Method;
 /// There is also a special attribute available to control how the struct is created from a
 /// `http::Request`:
 ///
-/// *   `#[ruma_api(header = HEADER_NAME)]`: Fields with this attribute will be treated as HTTP
-///     headers on the response.
-///     The value must implement `AsRef<str>`.
-///     Generally this is a `String`.
-///     The attribute value shown above as `HEADER_NAME` must be a header name constant from
-///     `http::header`, e.g. `CONTENT_TYPE`.
+/// * `#[ruma_api(header = HEADER_NAME)]`: Fields with this attribute will be treated as HTTP
+///   headers on the response. The value must implement `AsRef<str>`. Generally this is a
+///   `String`. The attribute value shown above as `HEADER_NAME` must be a header name constant
+///   from `http::header`, e.g. `CONTENT_TYPE`.
 ///
 /// Any field that does not include the above attribute will be expected in the response's JSON
 /// body.
@@ -119,15 +113,15 @@ use http::Method;
 /// ## Newtype bodies
 ///
 /// Both the request and response block also support "newtype bodies" by using the
-/// `#[ruma_api(body)]` attribute on a field. If present on a field, the entire request or response
-/// body will be treated as the value of the field. This allows you to treat the entire request or
-/// response body as a specific type, rather than a JSON object with named fields. Only one field in
-/// each struct can be marked with this attribute. It is an error to have a newtype body field and
-/// normal body fields within the same struct.
+/// `#[ruma_api(body)]` attribute on a field. If present on a field, the entire request or
+/// response body will be treated as the value of the field. This allows you to treat the
+/// entire request or response body as a specific type, rather than a JSON object with named
+/// fields. Only one field in each struct can be marked with this attribute. It is an error to
+/// have a newtype body field and normal body fields within the same struct.
 ///
-/// There is another kind of newtype body that is enabled with `#[ruma_api(raw_body)]`. It is used
-/// for endpoints in which the request or response body can be arbitrary bytes instead of a JSON
-/// objects. A field with `#[ruma_api(raw_body)]` needs to have the type `Vec<u8>`.
+/// There is another kind of newtype body that is enabled with `#[ruma_api(raw_body)]`. It is
+/// used for endpoints in which the request or response body can be arbitrary bytes instead of
+/// a JSON objects. A field with `#[ruma_api(raw_body)]` needs to have the type `Vec<u8>`.
 ///
 /// # Examples
 ///
@@ -201,10 +195,11 @@ use http::Method;
 ///
 /// ## Fallible deserialization
 ///
-/// All request and response types also derive [`Outgoing`][Outgoing]. As such, to allow fallible
-/// deserialization, you can use the `#[wrap_incoming]` attribute. For details, see the
-/// documentation for [the derive macro](derive.Outgoing.html).
-// TODO: Explain the concept of fallible deserialization before jumping to `ruma_common::Outgoing`
+/// All request and response types also derive [`Outgoing`][Outgoing]. As such, to allow
+/// fallible deserialization, you can use the `#[wrap_incoming]` attribute. For details, see
+/// the documentation for [the derive macro](derive.Outgoing.html).
+// TODO: Explain the concept of fallible deserialization before jumping to
+// `ruma_common::Outgoing`
 pub use ruma_api_macros::ruma_api;
 
 pub mod error;
diff --git a/ruma-appservice-api/src/thirdparty/get_location_for_protocol.rs b/ruma-appservice-api/src/thirdparty/get_location_for_protocol.rs
index 90e49a56..778b543a 100644
--- a/ruma-appservice-api/src/thirdparty/get_location_for_protocol.rs
+++ b/ruma-appservice-api/src/thirdparty/get_location_for_protocol.rs
@@ -1,3 +1,4 @@
-//! Endpoint to retrieve a list of Matrix portal rooms that lead to the matched third party location.
+//! Endpoint to retrieve a list of Matrix portal rooms that lead to the matched third party
+//! location.
 
 pub mod v1;
diff --git a/ruma-appservice-api/src/thirdparty/get_protocol.rs b/ruma-appservice-api/src/thirdparty/get_protocol.rs
index dc852b8f..3b3c1319 100644
--- a/ruma-appservice-api/src/thirdparty/get_protocol.rs
+++ b/ruma-appservice-api/src/thirdparty/get_protocol.rs
@@ -1,3 +1,4 @@
-//! Endpoint to present clients with specific information about the various third party networks that an application service supports.
+//! Endpoint to present clients with specific information about the various third party networks
+//! that an application service supports.
 
 pub mod v1;
diff --git a/ruma-appservice-api/src/thirdparty/get_user_for_protocol.rs b/ruma-appservice-api/src/thirdparty/get_user_for_protocol.rs
index 5bca9a4b..cad14a5e 100644
--- a/ruma-appservice-api/src/thirdparty/get_user_for_protocol.rs
+++ b/ruma-appservice-api/src/thirdparty/get_user_for_protocol.rs
@@ -1,3 +1,4 @@
-//! Endpoint to retrieve a Matrix User ID linked to a user on the third party network, given a set of user parameters.
+//! Endpoint to retrieve a Matrix User ID linked to a user on the third party network, given a set
+//! of user parameters.
 
 pub mod v1;
diff --git a/ruma-client-api/src/error.rs b/ruma-client-api/src/error.rs
index 21bfb1d1..907ccbfa 100644
--- a/ruma-client-api/src/error.rs
+++ b/ruma-client-api/src/error.rs
@@ -23,8 +23,8 @@ pub enum ErrorKind {
 
     /// M_UNKNOWN_TOKEN
     UnknownToken {
-        /// If this is `true`, the client can acquire a new access token by specifying the device ID
-        /// it is already using to the login API. For more information, see [the spec].
+        /// If this is `true`, the client can acquire a new access token by specifying the device
+        /// ID it is already using to the login API. For more information, see [the spec].
         ///
         /// [the spec]: https://matrix.org/docs/spec/client_server/r0.6.1#soft-logout
         soft_logout: bool,
diff --git a/ruma-client-api/src/r0/filter.rs b/ruma-client-api/src/r0/filter.rs
index 329d28fb..1b374c8b 100644
--- a/ruma-client-api/src/r0/filter.rs
+++ b/ruma-client-api/src/r0/filter.rs
@@ -66,8 +66,8 @@ pub struct RoomEventFilter<'a> {
 
     /// A list of sender IDs to exclude.
     ///
-    /// If this list is absent then no senders are excluded. A matching sender will be excluded even
-    /// if it is listed in the 'senders' filter.
+    /// If this list is absent then no senders are excluded. A matching sender will be excluded
+    /// even if it is listed in the 'senders' filter.
     #[serde(default, skip_serializing_if = "<[_]>::is_empty")]
     pub not_senders: &'a [UserId],
 
@@ -79,8 +79,8 @@ pub struct RoomEventFilter<'a> {
 
     /// A list of event types to include.
     ///
-    /// If this list is absent then all event types are included. A '*' can be used as a wildcard to
-    /// match any sequence of characters.
+    /// If this list is absent then all event types are included. A '*' can be used as a wildcard
+    /// to match any sequence of characters.
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub types: Option<&'a [String]>,
 
@@ -248,15 +248,15 @@ pub struct Filter<'a> {
 
     /// A list of event types to include.
     ///
-    /// If this list is absent then all event types are included. A '*' can be used as a wildcard to
-    /// match any sequence of characters.
+    /// If this list is absent then all event types are included. A '*' can be used as a wildcard
+    /// to match any sequence of characters.
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub types: Option<&'a [String]>,
 
     /// A list of sender IDs to exclude.
     ///
-    /// If this list is absent then no senders are excluded. A matching sender will be excluded even
-    /// if it is listed in the 'senders' filter.
+    /// If this list is absent then no senders are excluded. A matching sender will be excluded
+    /// even if it is listed in the 'senders' filter.
     #[serde(default, skip_serializing_if = "<[_]>::is_empty")]
     pub not_senders: &'a [UserId],
 }
diff --git a/ruma-client-api/src/r0/sync/sync_events.rs b/ruma-client-api/src/r0/sync/sync_events.rs
index 66f4a149..4bb48695 100644
--- a/ruma-client-api/src/r0/sync/sync_events.rs
+++ b/ruma-client-api/src/r0/sync/sync_events.rs
@@ -125,8 +125,8 @@ impl Response {
 pub enum Filter<'a> {
     // The filter definition needs to be (de)serialized twice because it is a URL-encoded JSON
     // string. Since #[ruma_api(query)] only does the latter and this is a very uncommon
-    // setup, we implement it through custom serde logic for this specific enum variant rather than
-    // adding another ruma_api attribute.
+    // setup, we implement it through custom serde logic for this specific enum variant rather
+    // than adding another ruma_api attribute.
     //
     // On the deserialization side, because this is an enum with #[serde(untagged)], serde will
     // try the variants in order (https://serde.rs/enum-representations.html). That means because
diff --git a/ruma-client/src/lib.rs b/ruma-client/src/lib.rs
index 39cae0c9..e40aed01 100644
--- a/ruma-client/src/lib.rs
+++ b/ruma-client/src/lib.rs
@@ -23,8 +23,8 @@
 //! ```
 //!
 //! You can also pass an existing session to the `Client` constructor to restore a previous session
-//! rather than calling `log_in`. This can also be used to create a session for an application service
-//! that does not need to log in, but uses the access_token directly:
+//! rather than calling `log_in`. This can also be used to create a session for an application
+//! service that does not need to log in, but uses the access_token directly:
 //!
 //! ```no_run
 //! use ruma_client::{Client, Session};
diff --git a/ruma-client/src/session.rs b/ruma-client/src/session.rs
index 0ea6be0f..9d899e26 100644
--- a/ruma-client/src/session.rs
+++ b/ruma-client/src/session.rs
@@ -12,8 +12,8 @@ pub struct Session {
     pub identification: Option<Identification>,
 }
 
-/// The identification information about the associated user account if the session is associated with
-/// a single user account.
+/// The identification information about the associated user account if the session is associated
+/// with a single user account.
 #[derive(Clone, Debug, serde::Deserialize, Eq, Hash, PartialEq, serde::Serialize)]
 pub struct Identification {
     /// The user the access token was issued for.
diff --git a/ruma-common/src/push/action.rs b/ruma-common/src/push/action.rs
index 5c82a654..67902073 100644
--- a/ruma-common/src/push/action.rs
+++ b/ruma-common/src/push/action.rs
@@ -31,8 +31,8 @@ pub enum Action {
 pub enum Tweak {
     /// A string representing the sound to be played when this notification arrives.
     ///
-    /// A value of "default" means to play a default sound. A device may choose to alert the user by
-    /// some other means if appropriate, eg. vibration.
+    /// A value of "default" means to play a default sound. A device may choose to alert the user
+    /// by some other means if appropriate, eg. vibration.
     Sound(String),
 
     /// A boolean representing whether or not this message should be highlighted in the UI.
@@ -40,8 +40,8 @@ pub enum Tweak {
     /// This will normally take the form of presenting the message in a different color and/or
     /// style. The UI might also be adjusted to draw particular attention to the room in which the
     /// event occurred. If a `highlight` tweak is given with no value, its value is defined to be
-    /// `true`. If no highlight tweak is given at all then the value of `highlight` is defined to be
-    /// `false`.
+    /// `true`. If no highlight tweak is given at all then the value of `highlight` is defined to
+    /// be `false`.
     Highlight(#[serde(default = "ruma_serde::default_true")] bool),
 
     /// A custom tweak
diff --git a/ruma-common/src/push/condition.rs b/ruma-common/src/push/condition.rs
index 5ef24559..74816445 100644
--- a/ruma-common/src/push/condition.rs
+++ b/ruma-common/src/push/condition.rs
@@ -16,8 +16,8 @@ pub enum PushCondition {
 
         /// The glob-style pattern to match against.
         ///
-        /// Patterns with no special glob characters should be treated as having asterisks prepended
-        /// and appended when testing the condition.
+        /// Patterns with no special glob characters should be treated as having asterisks
+        /// prepended and appended when testing the condition.
         pattern: String,
     },
 
diff --git a/ruma-common/src/push/predefined.rs b/ruma-common/src/push/predefined.rs
index bf27d736..4092cca3 100644
--- a/ruma-common/src/push/predefined.rs
+++ b/ruma-common/src/push/predefined.rs
@@ -43,8 +43,8 @@ impl Ruleset {
 
 /// Default override push rules
 impl ConditionalPushRule {
-    /// Matches all events, this can be enabled to turn off all push
-    /// notifications other than those generated by override rules set by the user.
+    /// Matches all events, this can be enabled to turn off all push notifications other than those
+    /// generated by override rules set by the user.
     pub fn master() -> Self {
         Self {
             actions: vec![DontNotify],
@@ -99,8 +99,8 @@ impl ConditionalPushRule {
         }
     }
 
-    /// Matches any message whose content is unencrypted and contains the user's
-    /// current display name in the room in which it was sent.
+    /// Matches any message whose content is unencrypted and contains the user's current display
+    /// name in the room in which it was sent.
     pub fn contains_display_name() -> Self {
         Self {
             actions: vec![
@@ -131,8 +131,8 @@ impl ConditionalPushRule {
         }
     }
 
-    /// Matches any message whose content is unencrypted and contains the
-    /// text `@room`, signifying the whole room should be notified of the event.
+    /// Matches any message whose content is unencrypted and contains the text `@room`, signifying
+    /// the whole room should be notified of the event.
     pub fn roomnotif() -> Self {
         Self {
             actions: vec![Notify, SetTweak(Tweak::Highlight(true))],
@@ -149,8 +149,8 @@ impl ConditionalPushRule {
 
 /// Default content push rules
 impl PatternedPushRule {
-    /// Matches any message whose content is unencrypted and contains
-    /// the local part of the user's Matrix ID, separated by word boundaries.
+    /// Matches any message whose content is unencrypted and contains the local part of the user's
+    /// Matrix ID, separated by word boundaries.
     pub fn contains_user_name(user_id: &UserId) -> Self {
         Self {
             rule_id: ".m.rules.contains_user_name".into(),
@@ -183,12 +183,10 @@ impl ConditionalPushRule {
         }
     }
 
-    /// Matches any encrypted event sent in a room with exactly
-    /// two members. Unlike other push rules, this rule cannot be
-    /// matched against the content of the event by nature of it
-    /// being encrypted. This causes the rule to be an "all or
-    /// nothing" match where it either matches all events that are
-    /// encrypted (in 1:1 rooms) or none.
+    /// Matches any encrypted event sent in a room with exactly two members. Unlike other push
+    /// rules, this rule cannot be matched against the content of the event by nature of it being
+    /// encrypted. This causes the rule to be an "all or nothing" match where it either matches all
+    /// events that are encrypted (in 1:1 rooms) or none.
     pub fn encrypted_room_one_to_one() -> Self {
         Self {
             rule_id: ".m.rules.encrypted_room_one_to_one".into(),
@@ -235,11 +233,10 @@ impl ConditionalPushRule {
         }
     }
 
-    /// Matches all encrypted events. Unlike other push rules,
-    /// this rule cannot be matched against the content of the
-    /// event by nature of it being encrypted. This causes the
-    /// rule to be an "all or nothing" match where it either matches
-    /// all events that are encrypted (in group rooms) or none.
+    /// Matches all encrypted events. Unlike other push rules, this rule cannot be matched against
+    /// the content of the event by nature of it being encrypted. This causes the rule to be an
+    /// "all or nothing" match where it either matches all events that are encrypted (in group
+    /// rooms) or none.
     pub fn encrypted() -> Self {
         Self {
             rule_id: ".m.rules.encrypted".into(),
diff --git a/ruma-events-macros/src/event_parse.rs b/ruma-events-macros/src/event_parse.rs
index a318ae67..a0f927e4 100644
--- a/ruma-events-macros/src/event_parse.rs
+++ b/ruma-events-macros/src/event_parse.rs
@@ -192,8 +192,8 @@ pub struct EventEnumInput {
     ///
     /// This will generate the variants of the event type "name". There needs to be a corresponding
     /// variant in `ruma_events::EventType` for this event (converted to a valid Rust-style type
-    /// name by stripping `m.`, replacing the remaining dots by underscores and then converting from
-    /// snake_case to CamelCase).
+    /// name by stripping `m.`, replacing the remaining dots by underscores and then converting
+    /// from snake_case to CamelCase).
     pub events: Vec<EventEnumEntry>,
 }
 
diff --git a/ruma-events/src/key/verification/mac.rs b/ruma-events/src/key/verification/mac.rs
index 98b90c53..3f7e75bf 100644
--- a/ruma-events/src/key/verification/mac.rs
+++ b/ruma-events/src/key/verification/mac.rs
@@ -26,7 +26,7 @@ pub struct MacEventContent {
     /// The MAC is encoded as unpadded Base64.
     pub mac: BTreeMap<String, String>,
 
-    /// The MAC of the comma-separated, sorted, list of key IDs given in the `mac` property, encoded
-    /// as unpadded Base64.
+    /// The MAC of the comma-separated, sorted, list of key IDs given in the `mac` property,
+    /// encoded as unpadded Base64.
     pub keys: String,
 }
diff --git a/ruma-events/src/lib.rs b/ruma-events/src/lib.rs
index dc0c3851..9fef7e22 100644
--- a/ruma-events/src/lib.rs
+++ b/ruma-events/src/lib.rs
@@ -27,26 +27,25 @@
 //! Matrix defines three "kinds" of events:
 //!
 //! 1.  **Events**, which are arbitrary JSON structures that have two required keys:
-//!     *   `type`, which specifies the event's type
-//!     *   `content`, which is a JSON object containing the "payload" of the event
+//!     * `type`, which specifies the event's type
+//!     * `content`, which is a JSON object containing the "payload" of the event
 //! 2.  **Room events**, which are a superset of events and represent actions that occurred within
 //!     the context of a Matrix room.
 //!     They have at least the following additional keys:
-//!     *   `event_id`, which is a unique identifier for the event
-//!     *   `room_id`, which is a unique identifier for the room in which the event occurred
-//!     *   `sender`, which is the unique identifier of the Matrix user who created the event
-//!     *   Optionally, `unsigned`, which is a JSON object containing arbitrary additional metadata
+//!     * `event_id`, which is a unique identifier for the event
+//!     * `room_id`, which is a unique identifier for the room in which the event occurred
+//!     * `sender`, which is the unique identifier of the Matrix user who created the event
+//!     * Optionally, `unsigned`, which is a JSON object containing arbitrary additional metadata
 //!     that is not digitally signed by Matrix homeservers.
 //! 3.  **State events**, which are a superset of room events and represent persistent state
 //!     specific to a room, such as the room's member list or topic.
 //!     Within a single room, state events of the same type and with the same "state key" will
 //!     effectively "replace" the previous one, updating the room's state.
 //!     They have at least the following additional keys:
-//!     *   `state_key`, a string which serves as a sort of "sub-type."
-//!         The state key allows a room to persist multiple state events of the same type.
-//!         You can think of a room's state events as being a `BTreeMap` where the keys are the
-//!         tuple `(event_type, state_key)`.
-//!     *   Optionally, `prev_content`, a JSON object containing the `content` object from the
+//!     * `state_key`, a string which serves as a sort of "sub-type." The state key allows a room to
+//!       persist multiple state events of the same type. You can think of a room's state events as
+//!       being a `BTreeMap` where the keys are the tuple `(event_type, state_key)`.
+//!     * Optionally, `prev_content`, a JSON object containing the `content` object from the
 //!     previous event of the given `(event_type, state_key)` tuple in the given room.
 //!
 //! ruma-events represents these three event kinds as traits, allowing any Rust type to serve as a
diff --git a/ruma-events/src/policy/rule.rs b/ruma-events/src/policy/rule.rs
index 7abe81d0..84e95964 100644
--- a/ruma-events/src/policy/rule.rs
+++ b/ruma-events/src/policy/rule.rs
@@ -11,7 +11,8 @@ pub mod user;
 #[derive(Clone, Debug, Deserialize, Serialize)]
 #[cfg_attr(not(feature = "unstable-exhaustive-types"), non_exhaustive)]
 pub struct PolicyRuleEventContent {
-    /// The entity affected by this rule. Glob characters * and ? can be used to match zero or more and one or more characters respectively.
+    /// The entity affected by this rule. Glob characters * and ? can be used to match zero or more
+    /// and one or more characters respectively.
     pub entity: String,
 
     /// The suggested action to take.
diff --git a/ruma-events/src/room/message.rs b/ruma-events/src/room/message.rs
index 43962702..e19f83bb 100644
--- a/ruma-events/src/room/message.rs
+++ b/ruma-events/src/room/message.rs
@@ -246,8 +246,9 @@ pub struct FileInfo {
 /// The payload for an image message.
 #[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct ImageMessageEventContent {
-    /// A textual representation of the image. This could be the alt text of the image, the filename
-    /// of the image, or some kind of content description for accessibility e.g. "image attachment."
+    /// A textual representation of the image. This could be the alt text of the image, the
+    /// filename of the image, or some kind of content description for accessibility e.g.
+    /// "image attachment."
     pub body: String,
 
     /// Metadata about the image referred to in `url`.
@@ -267,8 +268,8 @@ pub struct ImageMessageEventContent {
 /// The payload for a location message.
 #[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct LocationMessageEventContent {
-    /// A description of the location e.g. "Big Ben, London, UK,"or some kind of content description
-    /// for accessibility, e.g. "location attachment."
+    /// A description of the location e.g. "Big Ben, London, UK,"or some kind of content
+    /// description for accessibility, e.g. "location attachment."
     pub body: String,
 
     /// A geo URI representing the location.
@@ -291,8 +292,8 @@ pub struct LocationInfo {
     #[serde(skip_serializing_if = "Option::is_none")]
     pub thumbnail_url: Option<String>,
 
-    /// Information on an encrypted thumbnail of the location being represented. Only present if the
-    /// thumbnail is encrypted.
+    /// Information on an encrypted thumbnail of the location being represented. Only present if
+    /// the thumbnail is encrypted.
     #[serde(skip_serializing_if = "Option::is_none")]
     pub thumbnail_file: Option<Box<EncryptedFile>>,
 }
diff --git a/ruma-federation-api/src/membership/create_leave_event.rs b/ruma-federation-api/src/membership/create_leave_event.rs
index e583c210..279bd927 100644
--- a/ruma-federation-api/src/membership/create_leave_event.rs
+++ b/ruma-federation-api/src/membership/create_leave_event.rs
@@ -1,4 +1,5 @@
-//! Endpoint to submits a signed leave event to the receiving server for it to accept it into the room's graph.
+//! Endpoint to submits a signed leave event to the receiving server for it to accept it into the
+//! room's graph.
 
 pub mod v1;
 pub mod v2;
diff --git a/ruma-federation-api/src/membership/get_leave_event.rs b/ruma-federation-api/src/membership/get_leave_event.rs
index 1e8d07b8..65a72f7f 100644
--- a/ruma-federation-api/src/membership/get_leave_event.rs
+++ b/ruma-federation-api/src/membership/get_leave_event.rs
@@ -1,3 +1,4 @@
-//! Endpoint to asks the receiving server to return information that the sending server will need to prepare a leave event to get out of the room.
+//! Endpoint to asks the receiving server to return information that the sending server will need
+//! to prepare a leave event to get out of the room.
 
 pub mod v1;
diff --git a/ruma-push-gateway-api/src/send_event_notification/v1.rs b/ruma-push-gateway-api/src/send_event_notification/v1.rs
index 301ad394..520f478a 100644
--- a/ruma-push-gateway-api/src/send_event_notification/v1.rs
+++ b/ruma-push-gateway-api/src/send_event_notification/v1.rs
@@ -273,7 +273,8 @@ mod tweak_serde {
                 };
             }
 
-            // If no highlight tweak is given at all then the value of highlight is defined to be false.
+            // If no highlight tweak is given at all then the value of highlight is defined to be
+            // false.
             if !tweaks.iter().any(|tw| matches!(tw, Tweak::Highlight(_))) {
                 tweaks.push(Tweak::Highlight(false));
             }
diff --git a/ruma-serde/src/urlencoded/de.rs b/ruma-serde/src/urlencoded/de.rs
index a50ba874..9cab35ae 100644
--- a/ruma-serde/src/urlencoded/de.rs
+++ b/ruma-serde/src/urlencoded/de.rs
@@ -79,13 +79,13 @@ where
 
 /// A deserializer for the `application/x-www-form-urlencoded` format.
 ///
-/// * Supported top-level outputs are structs, maps and sequences of pairs,
-///   with or without a given length.
+/// * Supported top-level outputs are structs, maps and sequences of pairs, with or without a given
+///   length.
 ///
 /// * Main `deserialize` methods defers to `deserialize_map`.
 ///
-/// * Everything else but `deserialize_seq` and `deserialize_seq_fixed_size`
-///   defers to `deserialize`.
+/// * Everything else but `deserialize_seq` and `deserialize_seq_fixed_size` defers to
+///   `deserialize`.
 pub struct Deserializer<'de> {
     inner: MapDeserializer<'de, EntryIterator<'de>, Error>,
 }
diff --git a/ruma-serde/src/urlencoded/ser.rs b/ruma-serde/src/urlencoded/ser.rs
index ba46f3d7..80891883 100644
--- a/ruma-serde/src/urlencoded/ser.rs
+++ b/ruma-serde/src/urlencoded/ser.rs
@@ -32,11 +32,11 @@ pub fn to_string<T: ser::Serialize>(input: T) -> Result<String, Error> {
 
 /// A serializer for the `application/x-www-form-urlencoded` format.
 ///
-/// * Supported top-level inputs are structs, maps and sequences of pairs,
-///   with or without a given length.
+/// * Supported top-level inputs are structs, maps and sequences of pairs, with or without a given
+///   length.
 ///
-/// * Supported keys and values are integers, bytes (if convertible to strings),
-///   unit structs and unit variants.
+/// * Supported keys and values are integers, bytes (if convertible to strings), unit structs and
+///   unit variants.
 ///
 /// * Newtype structs defer to their inner values.
 pub struct Serializer<'input, 'output, Target: 'output + UrlEncodedTarget> {
diff --git a/ruma-signatures/src/keys.rs b/ruma-signatures/src/keys.rs
index 74db5b6f..32cd2347 100644
--- a/ruma-signatures/src/keys.rs
+++ b/ruma-signatures/src/keys.rs
@@ -34,9 +34,9 @@ impl Ed25519KeyPair {
     /// # Parameters
     ///
     /// * document: PKCS8-formatted bytes containing the private & public keys.
-    /// * version: The "version" of the key used for this signature.
-    ///   Versions are used as an identifier to distinguish signatures generated from different keys
-    ///   but using the same algorithm on the same homeserver.
+    /// * version: The "version" of the key used for this signature. Versions are used as an
+    ///   identifier to distinguish signatures generated from different keys but using the same
+    ///   algorithm on the same homeserver.
     ///
     /// # Errors
     ///