[beta] another round of backports for 1.42#69748

Merged

bors merged 8 commits into

rust-lang:betafrom

Mark-Simulacrum:beta-next

Mar 6, 2020

Commits on Mar 5, 2020

Fix a leak in `DiagnosticBuilder::into_diagnostic`.

nnethercote
authored and
Mark-Simulacrum
committed

Commits on Mar 6, 2020

stash API: remove panic to fix ICE.

Centril
authored and
Mark-Simulacrum
committed
Do not ICE on invalid type node

LeSeulArtichaut
authored and
Mark-Simulacrum
committed
Add regression test

LeSeulArtichaut
authored and
Mark-Simulacrum
committed
Backport only: avoid ICE on bad placeholder type

estebank
authored and
Mark-Simulacrum
committed
add regression test for issue #68794

brainlock
authored and
Mark-Simulacrum
committed
Update compiler-builtins to 0.1.25

tmandry
authored and
Mark-Simulacrum
committed
Backport release notes onto beta
Mark-Simulacrum
committed