diff --git a/Cargo.toml b/Cargo.toml
index 92cddee4b9438306e41016f64391bb99340d877e..49845c5eff39760640fafbd7ee110c115f5ef88f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -492,5 +492,10 @@ non_canonical_partial_ord_impl = "allow"
 reversed_empty_ranges = "allow"
 type_complexity = "allow"
 
+[workspace.lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = [
+    'cfg(gles)' # used in gpui
+] }
+
 [workspace.metadata.cargo-machete]
 ignored = ["bindgen", "cbindgen", "prost_build", "serde"]
diff --git a/crates/collab/src/db/queries/channels.rs b/crates/collab/src/db/queries/channels.rs
index 502fcd59c56900adfd43f8fe1abea3026e659538..966e52811ab38d2249c74c37724c87dc05888967 100644
--- a/crates/collab/src/db/queries/channels.rs
+++ b/crates/collab/src/db/queries/channels.rs
@@ -713,7 +713,7 @@ impl Database {
                     .find_also_related(user::Entity)
                     .filter(channel_member::Column::ChannelId.eq(channel.root_id()));
 
-                if cfg!(any(test, sqlite)) && self.pool.get_database_backend() == DbBackend::Sqlite {
+                if cfg!(any(test, feature = "sqlite")) && self.pool.get_database_backend() == DbBackend::Sqlite {
                     query = query.filter(Expr::cust_with_values(
                         "UPPER(github_login) LIKE ?",
                         [Self::fuzzy_like_string(&filter.to_uppercase())],
diff --git a/crates/languages/Cargo.toml b/crates/languages/Cargo.toml
index 1661586c9979e0707e90c060c5980e495d4c1fee..96df7ef410faef1ec04740c69e16b79ddcbed0b8 100644
--- a/crates/languages/Cargo.toml
+++ b/crates/languages/Cargo.toml
@@ -8,6 +8,9 @@ license = "GPL-3.0-or-later"
 [lints]
 workspace = true
 
+[features]
+test-support = []
+
 [dependencies]
 anyhow.workspace = true
 async-compression.workspace = true
diff --git a/crates/markdown/src/parser.rs b/crates/markdown/src/parser.rs
index 131a614ef805179e02a8f1203181395aa58c66a8..3626b5e2a45356ea2241d3d16fcdc4e24cdd6db9 100644
--- a/crates/markdown/src/parser.rs
+++ b/crates/markdown/src/parser.rs
@@ -144,7 +144,6 @@ pub enum MarkdownTag {
 
     /// A footnote definition. The value contained is the footnote's label by which it can
     /// be referred to.
-    #[cfg_attr(feature = "serde", serde(borrow))]
     FootnoteDefinition(SharedString),
 
     /// A table. Contains a vector describing the text-alignment for each of its columns.