rust/src/test/ui/use-mod.stderr

error[E0430]: `self` import can only appear once in an import list
  --> $DIR/use-mod.rs:12:5
   |
12 |     self,
   |     ^^^^ can only appear once in an import list
...
15 |     self
   |     ---- another `self` import appears here

error[E0431]: `self` import can only appear in an import list with a non-empty prefix
  --> $DIR/use-mod.rs:19:6
   |
19 | use {self};
   |      ^^^^ can only appear in an import list with a non-empty prefix

error[E0252]: the name `bar` is defined multiple times
  --> $DIR/use-mod.rs:15:5
   |
12 |     self,
   |     ---- previous import of the module `bar` here
...
15 |     self
   |     ^^^^ `bar` reimported here
   |
   = note: `bar` must be defined only once in the type namespace of this module
help: You can use `as` to change the binding name of the import
   |
15 |     self as other_bar
   |

error: aborting due to 3 previous errors

You've got a few errors: E0252, E0430, E0431
If you want more information on an error, try using "rustc --explain E0252"