Windows nightlies not being published

[larsbergstrom]

There are no Windows nightlies currently being published:
https://static.rust-lang.org/dist/2015-11-05/index.html

They appear to have been broken since at least Nov. 1. This prevents Servo from updating Rust.

CC: @edunham @brson @metajack

[brson]

@edunham was looking into this earlier.