Rollup merge of #63377 - SOF3:issues/63375, r=Centril
Rollup merge of #63377 - SOF3:issues/63375, r=Centril

Improved documentation for compile_error!()

Fixes #63375

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