order derivable traits lists

Ignoring :
 - **generated**.rs
 - python/tidy/servo_tidy_tests/rust_tidy.rs

components/layout/table.rs

@@ -588,7 +588,7 @@ impl ISizeAndMarginsComputer for InternalTable {
 /// maximum of 100 pixels and 20% of the table), the preceding constraint means that we must
 /// potentially store both a specified width *and* a specified percentage, so that the inline-size
 /// assignment phase of layout will know which one to pick.
-#[derive(Clone, Serialize, Debug, Copy)]
+#[derive(Clone, Copy, Debug, Serialize)]
 pub struct ColumnIntrinsicInlineSize {
     /// The preferred intrinsic inline size.
     pub preferred: Au,
@@ -625,7 +625,7 @@ impl ColumnIntrinsicInlineSize {
 ///
 /// TODO(pcwalton): There will probably be some `border-collapse`-related info in here too
 /// eventually.
-#[derive(Serialize, Clone, Copy, Debug)]
+#[derive(Clone, Copy, Debug, Serialize)]
 pub struct ColumnComputedInlineSize {
     /// The computed size of this inline column.
     pub size: Au,