Rollup merge of #59930 - kornelski:first-robots, r=GuillaumeGomez
Rollup merge of #59930 - kornelski:first-robots, r=GuillaumeGomez

Exclude some copies of old book editions from search engines

These are only stubs that confuse search engine users. There's no useful content in these locations.

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