Rollup merge of #40901 - MaloJaffre:fix-double-redirect, r=steveklabnik
Rollup merge of #40901 - MaloJaffre:fix-double-redirect, r=steveklabnik

Avoid linking to a moved page in rust.html

GBGamer/rust,graydon/rust,GBGamer/rust,aidancully/rust,graydon/rust,GBGamer/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,aidancully/rust,graydon/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,aidancully/rust,graydon/rust,GBGamer/rust,aidancully/rust,graydon/rust,graydon/rust