2 files changed, 14 insertions, 0 deletions
diff --git a/vendor/serde_json/src/features_check/error.rs b/vendor/serde_json/src/features_check/error.rs
new file mode 100644
index 000000000..22e58235c
--- /dev/null
+++ b/vendor/serde_json/src/features_check/error.rs
@@ -0,0 +1 @@
+"serde_json requires that either `std` (default) or `alloc` feature is enabled"
diff --git a/vendor/serde_json/src/features_check/mod.rs b/vendor/serde_json/src/features_check/mod.rs
new file mode 100644
index 000000000..d12032cef
--- /dev/null
+++ b/vendor/serde_json/src/features_check/mod.rs
@@ -0,0 +1,13 @@
+//! Shows a user-friendly compiler error on incompatible selected features.
+
+#[allow(unused_macros)]
+macro_rules! hide_from_rustfmt {
+    ($mod:item) => {
+        $mod
+    };
+}
+
+#[cfg(not(any(feature = "std", feature = "alloc")))]
+hide_from_rustfmt! {
+    mod error;
+}