rust-lang/rust — pull request #19860 by japaric (2014-12-15 03:41:58+00:00)
Title: impl `Copy` for `NoSend`/`NoSync`

Necessary to implement `Copy` on structs like this one:

``` rust
struct Slice<'a, T> {
_contravariant: marker::ContravariantLifetime<'a>,
_nosend: marker::NoSend,
data: *const T,
length: uint,
}
```

r? @alexcrichton