error: used import from `std` instead of `core`
  --> $DIR/std_instead_of_core.rs:9:9
   |
LL |     use std::hash::Hasher;
   |         ^^^^^^^^^^^^^^^^^
   |
   = help: consider importing the item from `core`
   = note: `-D clippy::std-instead-of-core` implied by `-D warnings`

error: used import from `std` instead of `core`
  --> $DIR/std_instead_of_core.rs:12:9
   |
LL |     use ::std::hash::Hash;
   |         ^^^^^^^^^^^^^^^^^
   |
   = help: consider importing the item from `core`

error: used import from `std` instead of `core`
  --> $DIR/std_instead_of_core.rs:18:20
   |
LL |     use std::fmt::{Debug, Result};
   |                    ^^^^^
   |
   = help: consider importing the item from `core`

error: used import from `std` instead of `core`
  --> $DIR/std_instead_of_core.rs:18:27
   |
LL |     use std::fmt::{Debug, Result};
   |                           ^^^^^^
   |
   = help: consider importing the item from `core`

error: used import from `std` instead of `core`
  --> $DIR/std_instead_of_core.rs:23:15
   |
LL |     let ptr = std::ptr::null::<u32>();
   |               ^^^^^^^^^^^^^^^^^^^^^
   |
   = help: consider importing the item from `core`

error: used import from `std` instead of `core`
  --> $DIR/std_instead_of_core.rs:25:19
   |
LL |     let ptr_mut = ::std::ptr::null_mut::<usize>();
   |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: consider importing the item from `core`

error: used import from `std` instead of `core`
  --> $DIR/std_instead_of_core.rs:29:16
   |
LL |     let cell = std::cell::Cell::new(8u32);
   |                ^^^^^^^^^^^^^^^
   |
   = help: consider importing the item from `core`

error: used import from `std` instead of `core`
  --> $DIR/std_instead_of_core.rs:31:25
   |
LL |     let cell_absolute = ::std::cell::Cell::new(8u32);
   |                         ^^^^^^^^^^^^^^^^^
   |
   = help: consider importing the item from `core`

error: used import from `std` instead of `core`
  --> $DIR/std_instead_of_core.rs:40:9
   |
LL |     use std::iter::Iterator;
   |         ^^^^^^^^^^^^^^^^^^^
   |
   = help: consider importing the item from `core`

error: used import from `std` instead of `alloc`
  --> $DIR/std_instead_of_core.rs:47:9
   |
LL |     use std::vec;
   |         ^^^^^^^^
   |
   = help: consider importing the item from `alloc`
   = note: `-D clippy::std-instead-of-alloc` implied by `-D warnings`

error: used import from `std` instead of `alloc`
  --> $DIR/std_instead_of_core.rs:49:9
   |
LL |     use std::vec::Vec;
   |         ^^^^^^^^^^^^^
   |
   = help: consider importing the item from `alloc`

error: used import from `alloc` instead of `core`
  --> $DIR/std_instead_of_core.rs:55:9
   |
LL |     use alloc::slice::from_ref;
   |         ^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: consider importing the item from `core`
   = note: `-D clippy::alloc-instead-of-core` implied by `-D warnings`

error: aborting due to 12 previous errors