Upgrade to rustc 1.0.0-nightly (890293655 2015-02-28) (built 2015-03-01)
Upgrade to rustc 1.0.0-nightly (890293655 2015-02-28) (built 2015-03-01)

servo/string-cache,frewsxcv/string-cache,dzbarsky/string-cache,nox/string-cache,tempbottle/string-cache,huonw/string-cache