diff --git a/sqlx-mysql/src/protocol/response/eof.rs b/sqlx-mysql/src/protocol/response/eof.rs
index 5dc9f104..7bf4cecc 100644
--- a/sqlx-mysql/src/protocol/response/eof.rs
+++ b/sqlx-mysql/src/protocol/response/eof.rs
@@ -13,6 +13,7 @@ use crate::protocol::Capabilities;
 /// prior MySQL versions.
 #[derive(Debug)]
 pub struct EofPacket {
+    #[allow(dead_code)]
     pub warnings: u16,
     pub status: Status,
 }
diff --git a/sqlx-postgres/src/message/row_description.rs b/sqlx-postgres/src/message/row_description.rs
index 7146ee83..32121386 100644
--- a/sqlx-postgres/src/message/row_description.rs
+++ b/sqlx-postgres/src/message/row_description.rs
@@ -27,13 +27,16 @@ pub struct Field {
 
     /// The data type size (see pg_type.typlen). Note that negative values denote
     /// variable-width types.
+    #[allow(dead_code)]
     pub data_type_size: i16,
 
     /// The type modifier (see pg_attribute.atttypmod). The meaning of the
     /// modifier is type-specific.
+    #[allow(dead_code)]
     pub type_modifier: i32,
 
     /// The format code being used for the field.
+    #[allow(dead_code)]
     pub format: i16,
 }