Comment out size improvements from compiler change

Author: jhpratt

tests/integration/meta.rs

@@ -96,18 +96,21 @@ fn size() {
             assert_eq!(
                 ::core::mem::size_of::<$t>(),
                 $size,
-                concat!("size of `{}` was ", $size),
+                concat!("size of `{}` used to be ", $size),
                 stringify!($t),
             );
             assert_eq!(
                 ::core::mem::size_of::<Option<$t>>(),
                 $opt_size,
-                concat!("size of `Option<{}>` was ", $opt_size),
+                concat!("size of `Option<{}>` used to be ", $opt_size),
                 stringify!($t),
             );
         };
     }
 
+    // A couple structs have their size decrease from 56 to 48 thanks to a compiler change. This
+    // change looks like it will land in 1.64 (2022-09-22).
+
     assert_size!(Date, 4, 8);
     assert_size!(Duration, 16, 16);
     assert_size!(OffsetDateTime, 16, 16);
@@ -147,10 +150,10 @@ fn size() {
     assert_size!(Parsed, 32, 32);
     assert_size!(Month, 1, 1);
     assert_size!(Weekday, 1, 1);
-    assert_size!(Error, 56, 56);
+    // assert_size!(Error, 56, 56);
     assert_size!(error::Format, 24, 24);
     assert_size!(error::InvalidFormatDescription, 40, 40);
-    assert_size!(error::Parse, 56, 56);
+    // assert_size!(error::Parse, 56, 56);
     assert_size!(error::ParseFromDescription, 16, 24);
     assert_size!(error::TryFromParsed, 48, 48);
     assert_size!(Component, 5, 5);