Rust fmt fixes

cranelift/faerie/src/backend.rs

@@ -215,7 +215,11 @@ impl Backend for FaerieBackend {
         } = data_ctx.description();
 
         if let Some((segment, section)) = custom_segment_section {
-            return Err(cranelift_module::ModuleError::Backend(anyhow::anyhow!("Custom section not supported by cranelift-faerie: `{}:{}`", segment, section)));
+            return Err(cranelift_module::ModuleError::Backend(anyhow::anyhow!(
+                "Custom section not supported by cranelift-faerie: `{}:{}`",
+                segment,
+                section
+            )));
         }
 
         for &(offset, id) in function_relocs {

cranelift/module/src/data_context.rs

@@ -97,10 +97,7 @@ impl DataContext {
 
     /// Override the segment/section for data, only supported on Object backend
     pub fn set_segment_section(&mut self, seg: &str, sec: &str) {
-        self.description.custom_segment_section = Some((
-            seg.to_owned(),
-            sec.to_owned(),
-        ))
+        self.description.custom_segment_section = Some((seg.to_owned(), sec.to_owned()))
     }
 
     /// Declare an external function import.

cranelift/object/src/backend.rs

@@ -284,7 +284,9 @@ impl Backend for ObjectBackend {
             self.object.section_id(section_kind)
         } else {
             if tls {
-                return Err(cranelift_module::ModuleError::Backend(anyhow::anyhow!("Custom section not supported for TLS")));
+                return Err(cranelift_module::ModuleError::Backend(anyhow::anyhow!(
+                    "Custom section not supported for TLS"
+                )));
             }
             let (seg, sec) = &custom_segment_section.as_ref().unwrap();
             self.object.add_section(