Rust programming language | https://www.rust-lang.org/ こんな感じでコピーできます。
形式はお好きな形にどうぞ。
javascript:(()=>{var d=document,b=d.body,c=d.createElement.bind(d),t=c("p"),p=c('p');p.style.userSelect='auto';t.appendChild(p).textContent=d.title+" | "+location.href;b.appendChild(t);d.getSelection().selectAllChildren(t);d.execCommand("copy");b.removeChild(t)})()
minify 前
var tmp = document.createElement('p');
var pre = document.createElement('p');
pre.style.userSelect = 'auto';
tmp.appendChild(pre).textContent = document.title + ' | ' + location.href;
document.body.appendChild(tmp);
document.getSelection().selectAllChildren(tmp);
document.execCommand('copy');