[breaking change] Update retain to use &mut instead of =
Merged
bors-servo merged 1 commit intoservo:masterfrom Nov 15, 2017
Xaeroxe:patch-1
Merged
[breaking change] Update retain to use &mut instead of =bors-servo merged 1 commit intoservo:masterfrom Xaeroxe:patch-1
bors-servo merged 1 commit intoservo:masterfrom
Xaeroxe:patch-1
