0.2.1 fails to build with nightly 8ff4b4206 2018-05-08

[sdroege]

error[E0433]: failed to resolve. Could not find `Pin` in `mem`
   --> /home/slomo/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-core-0.2.1/src/future/mod.rs:150:35
    |
150 |             unsafe { ::core::mem::Pin::get_mut(&mut self.as_pin()).poll(cx) }
    |                                   ^^^ Could not find `Pin` in `mem`

error[E0433]: failed to resolve. Could not find `Pin` in `mem`
  --> /home/slomo/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-core-0.2.1/src/stream/mod.rs:92:35
   |
92 |             unsafe { ::core::mem::Pin::get_mut(&mut self.as_pin()).poll_next(cx) }
   |                                   ^^^ Could not find `Pin` in `mem`

error[E0599]: no method named `as_pin` found for type `&mut std::boxed::PinBox<F>` in the current scope
   --> /home/slomo/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-core-0.2.1/src/future/mod.rs:150:58
    |
150 |             unsafe { ::core::mem::Pin::get_mut(&mut self.as_pin()).poll(cx) }
    |                                                          ^^^^^^

error[E0599]: no method named `as_pin` found for type `&mut std::boxed::PinBox<S>` in the current scope
  --> /home/slomo/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-core-0.2.1/src/stream/mod.rs:92:58
   |
92 |             unsafe { ::core::mem::Pin::get_mut(&mut self.as_pin()).poll_next(cx) }
   |                                                          ^^^^^^

error: aborting due to 4 previous errors

It would be great if a new release could also be made to crates.io :)

[Nemo157]

Needs an s/Pin/PinMut/ (plus some method name updates) to support rust-lang/rust#50497.