error[E0391]: cycle detected when expanding type alias `Node1Value`
  --> fail/interface/struct/derive_cyclic_impl.rs:4:36
   |
4  | #[graphql(impl = Node2Value, for = Node2Value)]
   |                                    ^^^^^^^^^^
   |
note: ...which requires expanding type alias `Node2Value`...
  --> fail/interface/struct/derive_cyclic_impl.rs:10:36
   |
10 | #[graphql(impl = Node1Value, for = Node1Value)]
   |                                    ^^^^^^^^^^
   = note: ...which again requires expanding type alias `Node1Value`, completing the cycle
   = note: type aliases cannot be recursive
   = help: consider using a struct, enum, or union instead to break the cycle
   = help: see <https://doc.rust-lang.org/reference/types.html#recursive-types> for more information
note: cycle used when computing type of `<impl at $DIR/fail/interface/struct/derive_cyclic_impl.rs:3:10: 3:26>`
  --> fail/interface/struct/derive_cyclic_impl.rs:3:10
   |
3  | #[derive(GraphQLInterface)]
   |          ^^^^^^^^^^^^^^^^
   = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
   = note: this error originates in the derive macro `GraphQLInterface` (in Nightly builds, run with -Z macro-backtrace for more info)