error: the item `u8` is imported redundantly
  --> $DIR/redundant-import-lang-prelude.rs:13:5
   |
LL | use std::primitive::u8;
   |     ^^^^^^^^^^^^^^^^^^ the item `u8` is already defined by the extern prelude
   |
note: the lint level is defined here
  --> $DIR/redundant-import-lang-prelude.rs:10:9
   |
LL | #![deny(redundant_imports)]
   |         ^^^^^^^^^^^^^^^^^

error: aborting due to 1 previous error