Bump bootstrap compiler to 1.57#90042

Merged

bors merged 4 commits intorust-lang:masterfrom

pietroalbini:1.56-master

Oct 25, 2021

Commits on Oct 24, 2021

bump boostrap compiler

pietroalbini
authored and
Mark-Simulacrum
committed
update cfg(bootstrap)

pietroalbini
authored and
Mark-Simulacrum
committed
remove "field is never read" warning

pietroalbini
authored and
Mark-Simulacrum
committed
Ignore errors re: unreachable blocks in dataflow cursor unit tests

ecstatic-morse
authored and
Mark-Simulacrum
committed