error: associated items `one`, `two`, `CONSTANT`, `Type`, and `three` are never used
  --> $DIR/unused-assoc-fns.rs:8:8
   |
LL | impl Foo {
   | -------- associated items in this implementation
LL |     fn one() {}
   |        ^^^
...
LL |     fn two(&self) {}
   |        ^^^
...
LL |     const CONSTANT: usize = 5;
   |           ^^^^^^^^
...
LL |     type Type = usize;
   |          ^^^^
LL |
LL |     fn three(&self) {
   |        ^^^^^
   |
note: the lint level is defined here
  --> $DIR/unused-assoc-fns.rs:3:9
   |
LL | #![deny(unused)]
   |         ^^^^^^
   = note: `#[deny(dead_code)]` implied by `#[deny(unused)]`

error: aborting due to 1 previous error