Add documentation for the `-Zself-profile` flag#69220

Merged

bors merged 2 commits intorust-lang:masterfrom

wesleywiser:doc_self_profile_unstable_book

Feb 25, 2020

Commits on Feb 17, 2020

Add documentation for the `-Zself-profile` flag
wesleywiser
committed

Commits on Feb 21, 2020

Add documentation for the `-Zself-profile-events` flag
wesleywiser
committed