[beta] Rollup backports#52308

Merged

bors merged 9 commits intorust-lang:betafrom

pietroalbini:beta-backports

Jul 12, 2018

Commits on Jul 12, 2018

Updated RELEASES for 1.28.0

Aaron Power
authored and
pietroalbini
committed
Update RELEASES.md

Aaronepower
authored and
pietroalbini
committed
Update RELEASES.md

Aaronepower
authored and
pietroalbini
committed
Updated RELEASES

Aaron Power
authored and
pietroalbini
committed
Update RELEASES.md

Aaronepower
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pietroalbini
committed
step_by: leave time of item skip unspecified

Emerentius
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pietroalbini
committed
Remove rustdoc plugins

steveklabnik
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pietroalbini
committed
rustdoc: Hide struct and enum variant constructor imports

ollie27
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pietroalbini
committed
Backport 1.27.1 release notes to master

Mark-Simulacrum
authored and
pietroalbini
committed