epoch: Fix fixme in deferred.rs (mem::uninitialized -> MaybeUninit)
epoch: Fix fixme in deferred.rs (mem::uninitialized -> MaybeUninit)

aturon/crossbeam,crossbeam-rs/crossbeam,crossbeam-rs/crossbeam,crossbeam-rs/crossbeam,crossbeam-rs/crossbeam