Use #[expect], lint reasons

src/utils/error.rs

@@ -16,7 +16,10 @@ use crate::Ra;
 pub(crate) type Result<T, E = Error> = std::result::Result<T, E>;
 
 #[derive(Error, Debug)]
-#[allow(clippy::error_impl_error)]
+#[expect(
+    clippy::error_impl_error,
+    reason = "This is our one and only Error struct"
+)]
 pub(crate) enum Error {
     #[cfg(feature = "sqlite")]
     #[error(

src/utils/room_version.rs

@@ -35,9 +35,11 @@ pub(crate) struct RoomVersion {
     pub(crate) redaction_event_redacts_in_content: bool,
 }
 
-// Allowed so that we can use struct-update syntax for incremental changes
-// between versions even when all fields change.
-#[allow(clippy::needless_update)]
+#[expect(
+    clippy::needless_update,
+    reason = "so that we can use struct-update syntax for incremental changes \
+              between versions even when all fields change"
+)]
 mod known_versions {
     use super::RoomVersion;