tree d0771d0290a42e194936df84b7ee2282bad241dc
parent 1ab727a230e9d0799e57cdd9fbc6fd7781ac522e
author Matthew Maurer <mmaurer@google.com> 1587586794 -0700
committer Matthew Maurer <mmaurer@google.com> 1587587831 -0700

Roll Android's rustc from 1.40.0 to 1.42.0

Also delete now unused 1.40.0
Bug: 152633654

Change-Id: I3a0e755e198bbe23aaa0516d1cca180d6cad3eea