tests/ui/pin-macro/cant_access_internals.rs

   1 // edition:2018
   2
   3 use core::{
   4     marker::PhantomPinned,
   5     mem,
   6     pin::{pin, Pin},
   7 };
   8
   9 fn main() {
  10     let mut phantom_pinned = pin!(PhantomPinned);
  11     mem::take(phantom_pinned.pointer); //~ ERROR use of unstable library feature 'unsafe_pin_internals'
  12 }