error: using `#![feature(effects)]` without enabling next trait solver globally
   |
   = note: the next trait solver must be enabled globally for the effects feature to work correctly
   = help: use `-Znext-solver` to enable

error: intrinsic safety mismatch between list of intrinsics within the compiler and core library intrinsics for intrinsic `size_of`
  --> $DIR/safe-intrinsic-mismatch.rs:11:5
   |
LL |     fn size_of<T>() -> usize;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^

error: intrinsic safety mismatch between list of intrinsics within the compiler and core library intrinsics for intrinsic `size_of`
  --> $DIR/safe-intrinsic-mismatch.rs:11:5
   |
LL |     fn size_of<T>() -> usize;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`

error: intrinsic safety mismatch between list of intrinsics within the compiler and core library intrinsics for intrinsic `assume`
  --> $DIR/safe-intrinsic-mismatch.rs:16:1
   |
LL | const fn assume(_b: bool) {}
   | ^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0308]: intrinsic has wrong type
  --> $DIR/safe-intrinsic-mismatch.rs:16:16
   |
LL | const fn assume(_b: bool) {}
   |                ^ expected unsafe fn, found safe fn
   |
   = note: expected signature `unsafe fn(_)`
              found signature `fn(_)`

error: intrinsic safety mismatch between list of intrinsics within the compiler and core library intrinsics for intrinsic `const_deallocate`
  --> $DIR/safe-intrinsic-mismatch.rs:20:1
   |
LL | const fn const_deallocate(_ptr: *mut u8, _size: usize, _align: usize) {}
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0308]: intrinsic has wrong type
  --> $DIR/safe-intrinsic-mismatch.rs:20:26
   |
LL | const fn const_deallocate(_ptr: *mut u8, _size: usize, _align: usize) {}
   |                          ^ expected unsafe fn, found safe fn
   |
   = note: expected signature `unsafe fn(_, _, _)`
              found signature `fn(_, _, _)`

error: aborting due to 7 previous errors

For more information about this error, try `rustc --explain E0308`.