error[E0199]: implementing the trait `Bar` is not unsafe
  --> $DIR/E0199.rs:6:1
   |
LL | unsafe impl Bar for Foo { }
   | ^^^^^^^^^^^^^^^^^^^^^^^
   |
help: remove `unsafe` from this trait implementation
   |
LL - unsafe impl Bar for Foo { }
LL + impl Bar for Foo { }
   |

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0199`.