error[E0412]: cannot find type `MissingType` in this scope
  --> $DIR/macro-rules-derive.rs:10:20
   |
LL |             field: MissingType
   |                    ^^^^^^^^^^^ not found in this scope
...
LL | produce_it!(MyName);
   | ------------------- in this macro invocation
   |
   = note: this error originates in the macro `produce_it` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0412`.