SipHasher::write, when used externally, should refer to trait method, not inherent (and private) method.

[savv]

This code snippet works: http://is.gd/cAKwYz

However, substituting ::Hasher for ::SipHasher gives the following error:

src/chunks.rs:35:5: 35:34 error: method `write` is private
src/chunks.rs:35     ::std::hash::SipHasher::write(&mut hasher, &x);

Discussion from IRC:

savv  hello. I am trying to figure out why SipHasher::write appears to be private, whereas ::finish is not: http://is.gd/cjwAvO
savv  Even though they both seem to be the same in terms of public-ness: https://doc.rust-lang.org/src/core/hash/sip.rs.html#174-200
eibwen  savv: it's because it has an inherent method of the same name
eibwen  savv: you need to call it via Hasher::write(&mut hasher, &x)
eibwen  you're welcome. you could open an issue about that

[savv]

eibwen  savv: the problem is that SipHasher also defines its own "write" method, which is private
eibwen  savv: since that is an inherent method, it is preferred to a trait method, even though you can't access it