Rollup merge of #55088 - juchiast:master, r=varkor
Rollup merge of #55088 - juchiast:master, r=varkor

Update rustc documentation link

Old link: http://manishearth.github.io/rust-internals-docs/rustc/
New link: https://doc.rust-lang.org/nightly/nightly-rustc/rustc/

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