Introduce `#[do_not_recommend]` to control errors for trait impls#2397

Merged

Centril merged 7 commits intorust-lang:masterfrom

sgrif:sg-do-not-recommend

Jul 2, 2018

Commits on Apr 27, 2018

Mention that we need to evaluate the name of the attribute
sgrif
authored

Commits on Jul 2, 2018