error[E0428]: the name `TestSome` is defined multiple times
  --> $DIR/duplicated-fields-issue-124464.rs:6:5
   |
LL |     TestSome(T),
   |     ----------- previous definition of the type `TestSome` here
LL |     TestSome(T),
   |     ^^^^^^^^^^^ `TestSome` redefined here
   |
   = note: `TestSome` must be defined only once in the type namespace of this enum

error[E0124]: field `bar` is already declared
  --> $DIR/duplicated-fields-issue-124464.rs:12:5
   |
LL |     bar: TestOption<u64>,
   |     -------------------- `bar` first declared here
LL |     bar: u8,
   |     ^^^^^^^ field already declared

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0124, E0428.
For more information about an error, try `rustc --explain E0124`.