Rollup merge of #69820 - GuillaumeGomez:cleanup-e0392, r=Dylan-DPC
Rollup merge of #69820 - GuillaumeGomez:cleanup-e0392, r=Dylan-DPC

clean up E0392 explanation

r? @Dylan-DPC

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