Rollup merge of #76778 - pickfire:patch-7, r=jonas-schievink
Rollup merge of #76778 - pickfire:patch-7, r=jonas-schievink

Simplify iter fuse struct doc

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