error[E0124]: field `bar` is already declared
  --> $DIR/pub-struct-field.rs:16:5
   |
LL |     bar: u8,
   |     ------- `bar` first declared here
LL |     pub bar: u8, //~ ERROR is already declared
   |     ^^^^^^^^^^^ field already declared

error[E0124]: field `bar` is already declared
  --> $DIR/pub-struct-field.rs:17:5
   |
LL |     bar: u8,
   |     ------- `bar` first declared here
LL |     pub bar: u8, //~ ERROR is already declared
LL |     pub(crate) bar: u8, //~ ERROR is already declared
   |     ^^^^^^^^^^^^^^^^^^ field already declared

error: aborting due to 2 previous errors

If you want more information on this error, try using "rustc --explain E0124"