Show at the top of the timeline when the current benchmark is expected to finish#2319

Kobzol merged 4 commits intorust-lang:masterrust-lang/rustc-perf:masterfrom

Jamesbarford:feat/display-current-request-expected-end-clearlyJamesbarford/rustc-perf:feat/display-current-request-expected-end-clearlyCopy head branch name to clipboard