Auto merge of #13454 - samueltardieu:push-ymnkzlqloptz, r=xFrednet

Use correct std/core prefix in lint output

changelog: none

I was waiting for #13452 to be merged before sending this one. `std` is used instead of `core` when appropriate in messages.

5 files changed, 294 insertions, 44 deletions

diff --git a/tests/ui/invalid_null_ptr_usage.fixed b/tests/ui/invalid_null_ptr_usage.fixed
index 092e875a255..ba225102c98 100644
--- a/tests/ui/invalid_null_ptr_usage.fixed
+++ b/tests/ui/invalid_null_ptr_usage.fixed
@@ -1,44 +1,44 @@
 fn main() {
     unsafe {
-        let _slice: &[usize] = std::slice::from_raw_parts(core::ptr::NonNull::dangling().as_ptr(), 0);
-        let _slice: &[usize] = std::slice::from_raw_parts(core::ptr::NonNull::dangling().as_ptr(), 0);
+        let _slice: &[usize] = std::slice::from_raw_parts(std::ptr::NonNull::dangling().as_ptr(), 0);
+        let _slice: &[usize] = std::slice::from_raw_parts(std::ptr::NonNull::dangling().as_ptr(), 0);
 
-        let _slice: &[usize] = std::slice::from_raw_parts_mut(core::ptr::NonNull::dangling().as_ptr(), 0);
+        let _slice: &[usize] = std::slice::from_raw_parts_mut(std::ptr::NonNull::dangling().as_ptr(), 0);
 
-        std::ptr::copy::<usize>(core::ptr::NonNull::dangling().as_ptr(), std::ptr::NonNull::dangling().as_ptr(), 0);
-        std::ptr::copy::<usize>(std::ptr::NonNull::dangling().as_ptr(), core::ptr::NonNull::dangling().as_ptr(), 0);
+        std::ptr::copy::<usize>(std::ptr::NonNull::dangling().as_ptr(), std::ptr::NonNull::dangling().as_ptr(), 0);
+        std::ptr::copy::<usize>(std::ptr::NonNull::dangling().as_ptr(), std::ptr::NonNull::dangling().as_ptr(), 0);
 
-        std::ptr::copy_nonoverlapping::<usize>(core::ptr::NonNull::dangling().as_ptr(), std::ptr::NonNull::dangling().as_ptr(), 0);
-        std::ptr::copy_nonoverlapping::<usize>(std::ptr::NonNull::dangling().as_ptr(), core::ptr::NonNull::dangling().as_ptr(), 0);
+        std::ptr::copy_nonoverlapping::<usize>(std::ptr::NonNull::dangling().as_ptr(), std::ptr::NonNull::dangling().as_ptr(), 0);
+        std::ptr::copy_nonoverlapping::<usize>(std::ptr::NonNull::dangling().as_ptr(), std::ptr::NonNull::dangling().as_ptr(), 0);
 
         struct A; // zero sized struct
         assert_eq!(std::mem::size_of::<A>(), 0);
 
-        let _a: A = std::ptr::read(core::ptr::NonNull::dangling().as_ptr());
-        let _a: A = std::ptr::read(core::ptr::NonNull::dangling().as_ptr());
+        let _a: A = std::ptr::read(std::ptr::NonNull::dangling().as_ptr());
+        let _a: A = std::ptr::read(std::ptr::NonNull::dangling().as_ptr());
 
-        let _a: A = std::ptr::read_unaligned(core::ptr::NonNull::dangling().as_ptr());
-        let _a: A = std::ptr::read_unaligned(core::ptr::NonNull::dangling().as_ptr());
+        let _a: A = std::ptr::read_unaligned(std::ptr::NonNull::dangling().as_ptr());
+        let _a: A = std::ptr::read_unaligned(std::ptr::NonNull::dangling().as_ptr());
 
-        let _a: A = std::ptr::read_volatile(core::ptr::NonNull::dangling().as_ptr());
-        let _a: A = std::ptr::read_volatile(core::ptr::NonNull::dangling().as_ptr());
+        let _a: A = std::ptr::read_volatile(std::ptr::NonNull::dangling().as_ptr());
+        let _a: A = std::ptr::read_volatile(std::ptr::NonNull::dangling().as_ptr());
 
-        let _a: A = std::ptr::replace(core::ptr::NonNull::dangling().as_ptr(), A);
+        let _a: A = std::ptr::replace(std::ptr::NonNull::dangling().as_ptr(), A);
         let _slice: *const [usize] = std::ptr::slice_from_raw_parts(std::ptr::null_mut(), 0); // shouldn't lint
         let _slice: *const [usize] = std::ptr::slice_from_raw_parts_mut(std::ptr::null_mut(), 0);
 
-        std::ptr::swap::<A>(core::ptr::NonNull::dangling().as_ptr(), &mut A);
-        std::ptr::swap::<A>(&mut A, core::ptr::NonNull::dangling().as_ptr());
+        std::ptr::swap::<A>(std::ptr::NonNull::dangling().as_ptr(), &mut A);
+        std::ptr::swap::<A>(&mut A, std::ptr::NonNull::dangling().as_ptr());
 
-        std::ptr::swap_nonoverlapping::<A>(core::ptr::NonNull::dangling().as_ptr(), &mut A, 0);
-        std::ptr::swap_nonoverlapping::<A>(&mut A, core::ptr::NonNull::dangling().as_ptr(), 0);
+        std::ptr::swap_nonoverlapping::<A>(std::ptr::NonNull::dangling().as_ptr(), &mut A, 0);
+        std::ptr::swap_nonoverlapping::<A>(&mut A, std::ptr::NonNull::dangling().as_ptr(), 0);
 
-        std::ptr::write(core::ptr::NonNull::dangling().as_ptr(), A);
+        std::ptr::write(std::ptr::NonNull::dangling().as_ptr(), A);
 
-        std::ptr::write_unaligned(core::ptr::NonNull::dangling().as_ptr(), A);
+        std::ptr::write_unaligned(std::ptr::NonNull::dangling().as_ptr(), A);
 
-        std::ptr::write_volatile(core::ptr::NonNull::dangling().as_ptr(), A);
+        std::ptr::write_volatile(std::ptr::NonNull::dangling().as_ptr(), A);
 
-        std::ptr::write_bytes::<usize>(core::ptr::NonNull::dangling().as_ptr(), 42, 0);
+        std::ptr::write_bytes::<usize>(std::ptr::NonNull::dangling().as_ptr(), 42, 0);
     }
 }
diff --git a/tests/ui/invalid_null_ptr_usage.stderr b/tests/ui/invalid_null_ptr_usage.stderr
index a0be2c0ad75..613a2cc3688 100644
--- a/tests/ui/invalid_null_ptr_usage.stderr
+++ b/tests/ui/invalid_null_ptr_usage.stderr
@@ -2,7 +2,7 @@ error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:3:59
    |
 LL |         let _slice: &[usize] = std::slice::from_raw_parts(std::ptr::null(), 0);
-   |                                                           ^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                                           ^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
    |
    = note: `#[deny(clippy::invalid_null_ptr_usage)]` on by default
 
@@ -10,127 +10,127 @@ error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:4:59
    |
 LL |         let _slice: &[usize] = std::slice::from_raw_parts(std::ptr::null_mut(), 0);
-   |                                                           ^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                                           ^^^^^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:6:63
    |
 LL |         let _slice: &[usize] = std::slice::from_raw_parts_mut(std::ptr::null_mut(), 0);
-   |                                                               ^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                                               ^^^^^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:8:33
    |
 LL |         std::ptr::copy::<usize>(std::ptr::null(), std::ptr::NonNull::dangling().as_ptr(), 0);
-   |                                 ^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                 ^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:9:73
    |
 LL |         std::ptr::copy::<usize>(std::ptr::NonNull::dangling().as_ptr(), std::ptr::null_mut(), 0);
-   |                                                                         ^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                                                         ^^^^^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:11:48
    |
 LL |         std::ptr::copy_nonoverlapping::<usize>(std::ptr::null(), std::ptr::NonNull::dangling().as_ptr(), 0);
-   |                                                ^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                                ^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:12:88
    |
 LL |         std::ptr::copy_nonoverlapping::<usize>(std::ptr::NonNull::dangling().as_ptr(), std::ptr::null_mut(), 0);
-   |                                                                                        ^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                                                                        ^^^^^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:17:36
    |
 LL |         let _a: A = std::ptr::read(std::ptr::null());
-   |                                    ^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                    ^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:18:36
    |
 LL |         let _a: A = std::ptr::read(std::ptr::null_mut());
-   |                                    ^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                    ^^^^^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:20:46
    |
 LL |         let _a: A = std::ptr::read_unaligned(std::ptr::null());
-   |                                              ^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                              ^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:21:46
    |
 LL |         let _a: A = std::ptr::read_unaligned(std::ptr::null_mut());
-   |                                              ^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                              ^^^^^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:23:45
    |
 LL |         let _a: A = std::ptr::read_volatile(std::ptr::null());
-   |                                             ^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                             ^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:24:45
    |
 LL |         let _a: A = std::ptr::read_volatile(std::ptr::null_mut());
-   |                                             ^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                             ^^^^^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:26:39
    |
 LL |         let _a: A = std::ptr::replace(std::ptr::null_mut(), A);
-   |                                       ^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                       ^^^^^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:30:29
    |
 LL |         std::ptr::swap::<A>(std::ptr::null_mut(), &mut A);
-   |                             ^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                             ^^^^^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:31:37
    |
 LL |         std::ptr::swap::<A>(&mut A, std::ptr::null_mut());
-   |                                     ^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                     ^^^^^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:33:44
    |
 LL |         std::ptr::swap_nonoverlapping::<A>(std::ptr::null_mut(), &mut A, 0);
-   |                                            ^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                            ^^^^^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:34:52
    |
 LL |         std::ptr::swap_nonoverlapping::<A>(&mut A, std::ptr::null_mut(), 0);
-   |                                                    ^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                                    ^^^^^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:36:25
    |
 LL |         std::ptr::write(std::ptr::null_mut(), A);
-   |                         ^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                         ^^^^^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:38:35
    |
 LL |         std::ptr::write_unaligned(std::ptr::null_mut(), A);
-   |                                   ^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                   ^^^^^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:40:34
    |
 LL |         std::ptr::write_volatile(std::ptr::null_mut(), A);
-   |                                  ^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                  ^^^^^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: pointer must be non-null
   --> tests/ui/invalid_null_ptr_usage.rs:42:40
    |
 LL |         std::ptr::write_bytes::<usize>(std::ptr::null_mut(), 42, 0);
-   |                                        ^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |                                        ^^^^^^^^^^^^^^^^^^^^ help: change this to: `std::ptr::NonNull::dangling().as_ptr()`
 
 error: aborting due to 22 previous errors
 
diff --git a/tests/ui/invalid_null_ptr_usage_no_std.fixed b/tests/ui/invalid_null_ptr_usage_no_std.fixed
new file mode 100644
index 00000000000..2bbfe727424
--- /dev/null
+++ b/tests/ui/invalid_null_ptr_usage_no_std.fixed
@@ -0,0 +1,57 @@
+#![no_std]
+#![feature(lang_items)]
+
+use core::panic::PanicInfo;
+
+#[lang = "eh_personality"]
+extern "C" fn eh_personality() {}
+
+#[panic_handler]
+fn panic(info: &PanicInfo) -> ! {
+    loop {}
+}
+
+fn main() {
+    unsafe {
+        let _slice: &[usize] = core::slice::from_raw_parts(core::ptr::NonNull::dangling().as_ptr(), 0);
+        let _slice: &[usize] = core::slice::from_raw_parts(core::ptr::NonNull::dangling().as_ptr(), 0);
+
+        let _slice: &[usize] = core::slice::from_raw_parts_mut(core::ptr::NonNull::dangling().as_ptr(), 0);
+
+        core::ptr::copy::<usize>(core::ptr::NonNull::dangling().as_ptr(), core::ptr::NonNull::dangling().as_ptr(), 0);
+        core::ptr::copy::<usize>(core::ptr::NonNull::dangling().as_ptr(), core::ptr::NonNull::dangling().as_ptr(), 0);
+
+        core::ptr::copy_nonoverlapping::<usize>(core::ptr::NonNull::dangling().as_ptr(), core::ptr::NonNull::dangling().as_ptr(), 0);
+        core::ptr::copy_nonoverlapping::<usize>(core::ptr::NonNull::dangling().as_ptr(), core::ptr::NonNull::dangling().as_ptr(), 0);
+
+        struct A; // zero sized struct
+        assert_eq!(core::mem::size_of::<A>(), 0);
+
+        let _a: A = core::ptr::read(core::ptr::NonNull::dangling().as_ptr());
+        let _a: A = core::ptr::read(core::ptr::NonNull::dangling().as_ptr());
+
+        let _a: A = core::ptr::read_unaligned(core::ptr::NonNull::dangling().as_ptr());
+        let _a: A = core::ptr::read_unaligned(core::ptr::NonNull::dangling().as_ptr());
+
+        let _a: A = core::ptr::read_volatile(core::ptr::NonNull::dangling().as_ptr());
+        let _a: A = core::ptr::read_volatile(core::ptr::NonNull::dangling().as_ptr());
+
+        let _a: A = core::ptr::replace(core::ptr::NonNull::dangling().as_ptr(), A);
+        let _slice: *const [usize] = core::ptr::slice_from_raw_parts(core::ptr::null_mut(), 0); // shouldn't lint
+        let _slice: *const [usize] = core::ptr::slice_from_raw_parts_mut(core::ptr::null_mut(), 0);
+
+        core::ptr::swap::<A>(core::ptr::NonNull::dangling().as_ptr(), &mut A);
+        core::ptr::swap::<A>(&mut A, core::ptr::NonNull::dangling().as_ptr());
+
+        core::ptr::swap_nonoverlapping::<A>(core::ptr::NonNull::dangling().as_ptr(), &mut A, 0);
+        core::ptr::swap_nonoverlapping::<A>(&mut A, core::ptr::NonNull::dangling().as_ptr(), 0);
+
+        core::ptr::write(core::ptr::NonNull::dangling().as_ptr(), A);
+
+        core::ptr::write_unaligned(core::ptr::NonNull::dangling().as_ptr(), A);
+
+        core::ptr::write_volatile(core::ptr::NonNull::dangling().as_ptr(), A);
+
+        core::ptr::write_bytes::<usize>(core::ptr::NonNull::dangling().as_ptr(), 42, 0);
+    }
+}
diff --git a/tests/ui/invalid_null_ptr_usage_no_std.rs b/tests/ui/invalid_null_ptr_usage_no_std.rs
new file mode 100644
index 00000000000..cbce44f7c0d
--- /dev/null
+++ b/tests/ui/invalid_null_ptr_usage_no_std.rs
@@ -0,0 +1,57 @@
+#![no_std]
+#![feature(lang_items)]
+
+use core::panic::PanicInfo;
+
+#[lang = "eh_personality"]
+extern "C" fn eh_personality() {}
+
+#[panic_handler]
+fn panic(info: &PanicInfo) -> ! {
+    loop {}
+}
+
+fn main() {
+    unsafe {
+        let _slice: &[usize] = core::slice::from_raw_parts(core::ptr::null(), 0);
+        let _slice: &[usize] = core::slice::from_raw_parts(core::ptr::null_mut(), 0);
+
+        let _slice: &[usize] = core::slice::from_raw_parts_mut(core::ptr::null_mut(), 0);
+
+        core::ptr::copy::<usize>(core::ptr::null(), core::ptr::NonNull::dangling().as_ptr(), 0);
+        core::ptr::copy::<usize>(core::ptr::NonNull::dangling().as_ptr(), core::ptr::null_mut(), 0);
+
+        core::ptr::copy_nonoverlapping::<usize>(core::ptr::null(), core::ptr::NonNull::dangling().as_ptr(), 0);
+        core::ptr::copy_nonoverlapping::<usize>(core::ptr::NonNull::dangling().as_ptr(), core::ptr::null_mut(), 0);
+
+        struct A; // zero sized struct
+        assert_eq!(core::mem::size_of::<A>(), 0);
+
+        let _a: A = core::ptr::read(core::ptr::null());
+        let _a: A = core::ptr::read(core::ptr::null_mut());
+
+        let _a: A = core::ptr::read_unaligned(core::ptr::null());
+        let _a: A = core::ptr::read_unaligned(core::ptr::null_mut());
+
+        let _a: A = core::ptr::read_volatile(core::ptr::null());
+        let _a: A = core::ptr::read_volatile(core::ptr::null_mut());
+
+        let _a: A = core::ptr::replace(core::ptr::null_mut(), A);
+        let _slice: *const [usize] = core::ptr::slice_from_raw_parts(core::ptr::null_mut(), 0); // shouldn't lint
+        let _slice: *const [usize] = core::ptr::slice_from_raw_parts_mut(core::ptr::null_mut(), 0);
+
+        core::ptr::swap::<A>(core::ptr::null_mut(), &mut A);
+        core::ptr::swap::<A>(&mut A, core::ptr::null_mut());
+
+        core::ptr::swap_nonoverlapping::<A>(core::ptr::null_mut(), &mut A, 0);
+        core::ptr::swap_nonoverlapping::<A>(&mut A, core::ptr::null_mut(), 0);
+
+        core::ptr::write(core::ptr::null_mut(), A);
+
+        core::ptr::write_unaligned(core::ptr::null_mut(), A);
+
+        core::ptr::write_volatile(core::ptr::null_mut(), A);
+
+        core::ptr::write_bytes::<usize>(core::ptr::null_mut(), 42, 0);
+    }
+}
diff --git a/tests/ui/invalid_null_ptr_usage_no_std.stderr b/tests/ui/invalid_null_ptr_usage_no_std.stderr
new file mode 100644
index 00000000000..df0d40e9e07
--- /dev/null
+++ b/tests/ui/invalid_null_ptr_usage_no_std.stderr
@@ -0,0 +1,136 @@
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:16:60
+   |
+LL |         let _slice: &[usize] = core::slice::from_raw_parts(core::ptr::null(), 0);
+   |                                                            ^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+   |
+   = note: `#[deny(clippy::invalid_null_ptr_usage)]` on by default
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:17:60
+   |
+LL |         let _slice: &[usize] = core::slice::from_raw_parts(core::ptr::null_mut(), 0);
+   |                                                            ^^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:19:64
+   |
+LL |         let _slice: &[usize] = core::slice::from_raw_parts_mut(core::ptr::null_mut(), 0);
+   |                                                                ^^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:21:34
+   |
+LL |         core::ptr::copy::<usize>(core::ptr::null(), core::ptr::NonNull::dangling().as_ptr(), 0);
+   |                                  ^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:22:75
+   |
+LL |         core::ptr::copy::<usize>(core::ptr::NonNull::dangling().as_ptr(), core::ptr::null_mut(), 0);
+   |                                                                           ^^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:24:49
+   |
+LL |         core::ptr::copy_nonoverlapping::<usize>(core::ptr::null(), core::ptr::NonNull::dangling().as_ptr(), 0);
+   |                                                 ^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:25:90
+   |
+LL |         core::ptr::copy_nonoverlapping::<usize>(core::ptr::NonNull::dangling().as_ptr(), core::ptr::null_mut(), 0);
+   |                                                                                          ^^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:30:37
+   |
+LL |         let _a: A = core::ptr::read(core::ptr::null());
+   |                                     ^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:31:37
+   |
+LL |         let _a: A = core::ptr::read(core::ptr::null_mut());
+   |                                     ^^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:33:47
+   |
+LL |         let _a: A = core::ptr::read_unaligned(core::ptr::null());
+   |                                               ^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:34:47
+   |
+LL |         let _a: A = core::ptr::read_unaligned(core::ptr::null_mut());
+   |                                               ^^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:36:46
+   |
+LL |         let _a: A = core::ptr::read_volatile(core::ptr::null());
+   |                                              ^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:37:46
+   |
+LL |         let _a: A = core::ptr::read_volatile(core::ptr::null_mut());
+   |                                              ^^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:39:40
+   |
+LL |         let _a: A = core::ptr::replace(core::ptr::null_mut(), A);
+   |                                        ^^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:43:30
+   |
+LL |         core::ptr::swap::<A>(core::ptr::null_mut(), &mut A);
+   |                              ^^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:44:38
+   |
+LL |         core::ptr::swap::<A>(&mut A, core::ptr::null_mut());
+   |                                      ^^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:46:45
+   |
+LL |         core::ptr::swap_nonoverlapping::<A>(core::ptr::null_mut(), &mut A, 0);
+   |                                             ^^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:47:53
+   |
+LL |         core::ptr::swap_nonoverlapping::<A>(&mut A, core::ptr::null_mut(), 0);
+   |                                                     ^^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:49:26
+   |
+LL |         core::ptr::write(core::ptr::null_mut(), A);
+   |                          ^^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:51:36
+   |
+LL |         core::ptr::write_unaligned(core::ptr::null_mut(), A);
+   |                                    ^^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:53:35
+   |
+LL |         core::ptr::write_volatile(core::ptr::null_mut(), A);
+   |                                   ^^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: pointer must be non-null
+  --> tests/ui/invalid_null_ptr_usage_no_std.rs:55:41
+   |
+LL |         core::ptr::write_bytes::<usize>(core::ptr::null_mut(), 42, 0);
+   |                                         ^^^^^^^^^^^^^^^^^^^^^ help: change this to: `core::ptr::NonNull::dangling().as_ptr()`
+
+error: aborting due to 22 previous errors
+