13     cell::{Cell, UnsafeCell},
447 …  unsafe impl<$($tyvar)?> TransmuteFrom<$atomic, Valid, Valid> for core::cell::UnsafeCell<$prim> {}
449 …  unsafe impl<$($tyvar)?> TransmuteFrom<core::cell::UnsafeCell<$prim>, Valid, Valid> for $atomic {}
839 impl_for_transmute_from!(T: ?Sized + FromZeros => FromZeros for UnsafeCell<T>[T]);
840 impl_for_transmute_from!(T: ?Sized + FromBytes => FromBytes for UnsafeCell<T>[T]);
841 impl_for_transmute_from!(T: ?Sized + IntoBytes => IntoBytes for UnsafeCell<T>[T]);
849 const _: () = unsafe { unsafe_impl!(T: ?Sized + Unaligned => Unaligned for UnsafeCell<T>) };
850 assert_unaligned!(UnsafeCell<()>, UnsafeCell<u8>);
853 unsafe impl<T: TryFromBytes + ?Sized> TryFromBytes for UnsafeCell<T> {  implementation
1493             Box<UnsafeCell<NotZerocopy>>,  in test_impls()
1494             &'static UnsafeCell<NotZerocopy>,  in test_impls()
1495             &'static mut UnsafeCell<NotZerocopy>,  in test_impls()
1496             NonNull<UnsafeCell<NotZerocopy>>,  in test_impls()
1546             ManuallyDrop<[UnsafeCell<u8>]>  in test_impls()
1547 …=> @success bx!(ManuallyDrop::new([UnsafeCell::new(0)])), bx!(ManuallyDrop::new([UnsafeCell::new(0…  in test_impls()
1548             ManuallyDrop<[UnsafeCell<bool>]>  in test_impls()
1549 …> @success bx!(ManuallyDrop::new([UnsafeCell::new(false)])), bx!(ManuallyDrop::new([UnsafeCell::ne…  in test_impls()
1699                             ManuallyDrop<UnsafeCell<()>>,  in test_impls()
1700                             ManuallyDrop<[UnsafeCell<u8>]>,  in test_impls()
1701                             ManuallyDrop<[UnsafeCell<bool>]>,  in test_impls()
1703                             CoreMaybeUninit<UnsafeCell<()>>,  in test_impls()
1704                             Wrapping<UnsafeCell<()>>  in test_impls()
1714                             ManuallyDrop<[UnsafeCell<bool>]>  in test_impls()
1724                             Option<Box<UnsafeCell<NotZerocopy>>>,  in test_impls()
1725                             Option<&'static UnsafeCell<NotZerocopy>>,  in test_impls()
1726                             Option<&'static mut UnsafeCell<NotZerocopy>>,  in test_impls()
1727                             Option<NonNull<UnsafeCell<NotZerocopy>>>,  in test_impls()
1745                             ManuallyDrop<[UnsafeCell<bool>]>,  in test_impls()
1756                             Option<&'static UnsafeCell<NotZerocopy>>,  in test_impls()
1757                             Option<&'static mut UnsafeCell<NotZerocopy>>,  in test_impls()
1758                             Option<NonNull<UnsafeCell<NotZerocopy>>>,  in test_impls()
1759                             Option<Box<UnsafeCell<NotZerocopy>>>,  in test_impls()
1766                             CoreMaybeUninit<UnsafeCell<()>>,  in test_impls()
1767                             ManuallyDrop<UnsafeCell<()>>,  in test_impls()
1768                             ManuallyDrop<[UnsafeCell<u8>]>,  in test_impls()
1769                             ManuallyDrop<[UnsafeCell<bool>]>,  in test_impls()
1770                             Wrapping<UnsafeCell<()>>,  in test_impls()
2221 …assert_impls!(Option<Box<UnsafeCell<NotZerocopy>>>: KnownLayout, Immutable, TryFromBytes, FromZero…  in test_impls()
2222 …assert_impls!(Option<Box<[UnsafeCell<NotZerocopy>]>>: KnownLayout, !Immutable, !TryFromBytes, !Fro…  in test_impls()
2223 …assert_impls!(Option<&'static UnsafeCell<NotZerocopy>>: KnownLayout, Immutable, TryFromBytes, From…  in test_impls()
2224 …assert_impls!(Option<&'static [UnsafeCell<NotZerocopy>]>: KnownLayout, Immutable, !TryFromBytes, !…  in test_impls()
2225 …assert_impls!(Option<&'static mut UnsafeCell<NotZerocopy>>: KnownLayout, Immutable, TryFromBytes, …  in test_impls()
2226 …assert_impls!(Option<&'static mut [UnsafeCell<NotZerocopy>]>: KnownLayout, Immutable, !TryFromByte…  in test_impls()
2227 …assert_impls!(Option<NonNull<UnsafeCell<NotZerocopy>>>: KnownLayout, TryFromBytes, FromZeros, Immu…  in test_impls()
2228 …assert_impls!(Option<NonNull<[UnsafeCell<NotZerocopy>]>>: KnownLayout, Immutable, !TryFromBytes, !…  in test_impls()
2235 …assert_impls!(PhantomData<UnsafeCell<()>>: KnownLayout, Immutable, TryFromBytes, FromZeros, FromBy…  in test_impls()
2248 …assert_impls!(ManuallyDrop<UnsafeCell<()>>: KnownLayout, TryFromBytes, FromZeros, FromBytes, IntoB…  in test_impls()
2249 …assert_impls!(ManuallyDrop<[UnsafeCell<u8>]>: KnownLayout, TryFromBytes, FromZeros, FromBytes, Int…  in test_impls()
2250 …assert_impls!(ManuallyDrop<[UnsafeCell<bool>]>: KnownLayout, TryFromBytes, FromZeros, IntoBytes, U…  in test_impls()
2254 …assert_impls!(CoreMaybeUninit<UnsafeCell<()>>: KnownLayout, TryFromBytes, FromZeros, FromBytes, Un…  in test_impls()
2261 …assert_impls!(Wrapping<UnsafeCell<()>>: KnownLayout, TryFromBytes, FromZeros, FromBytes, IntoBytes…  in test_impls()