Rollup of 5 pull requests#71014

Merged

bors merged 15 commits into

rust-lang:masterfrom

Centril:rollup-3lc8cnt

Apr 11, 2020

Commits on Apr 7, 2020

bootstrap: work around "unused attribute" errors in incremental stdlib rebuilds.
eddyb
committed

Commits on Apr 9, 2020

Normalize MIR locals' types for generator layout computation.
oli-obk
committed

Commits on Apr 10, 2020