error: this could be a `const fn`
  --> $DIR/could_be_const.rs:14:5
   |
LL | /     pub fn new() -> Self {
LL | |         Self { guess: 42 }
LL | |     }
   | |_____^
   |
   = note: `-D clippy::missing-const-for-fn` implied by `-D warnings`

error: this could be a `const fn`
  --> $DIR/could_be_const.rs:18:5
   |
LL | /     fn const_generic_params<'a, T, const N: usize>(&self, b: &'a [T; N]) -> &'a [T; N] {
LL | |         b
LL | |     }
   | |_____^

error: this could be a `const fn`
  --> $DIR/could_be_const.rs:24:1
   |
LL | / fn one() -> i32 {
LL | |     1
LL | | }
   | |_^

error: this could be a `const fn`
  --> $DIR/could_be_const.rs:29:1
   |
LL | / fn two() -> i32 {
LL | |     let abc = 2;
LL | |     abc
LL | | }
   | |_^

error: this could be a `const fn`
  --> $DIR/could_be_const.rs:35:1
   |
LL | / fn string() -> String {
LL | |     String::new()
LL | | }
   | |_^

error: this could be a `const fn`
  --> $DIR/could_be_const.rs:40:1
   |
LL | / unsafe fn four() -> i32 {
LL | |     4
LL | | }
   | |_^

error: this could be a `const fn`
  --> $DIR/could_be_const.rs:45:1
   |
LL | / fn generic<T>(t: T) -> T {
LL | |     t
LL | | }
   | |_^

error: this could be a `const fn`
  --> $DIR/could_be_const.rs:68:9
   |
LL | /         pub fn b(self, a: &A) -> B {
LL | |             B
LL | |         }
   | |_________^

error: this could be a `const fn`
  --> $DIR/could_be_const.rs:78:5
   |
LL | /     fn const_fn_stabilized_before_msrv(byte: u8) {
LL | |         byte.is_ascii_digit();
LL | |     }
   | |_____^

error: aborting due to 9 previous errors