More fixes related to feature gating.

Author: pebender

src/format/mod.rs

@@ -370,11 +370,14 @@ impl<'a> defmt::Format for Item<'a> {
     fn format(&self, f: defmt::Formatter) {
         match self {
             Item::Literal(v) => defmt::write!(f, "Literal {{ {} }}", v),
+            #[cfg(feature = "alloc")]
+            Item::OwnedLiteral(_) => {},
             Item::Space(v) => defmt::write!(f, "Space {{ {}  }}", v),
+            #[cfg(feature = "alloc")]
+            Item::OwnedSpace(_) => {},
             Item::Numeric(u, v) => defmt::write!(f, "Numeric {{ {}, {} }}", u, v),
             Item::Fixed(v) => defmt::write!(f, "Fixed {{ {}  }}", v),
             Item::Error => defmt::write!(f, "Error"),
-            _ => {}
         }
     }
 }