this is beta 1.40.0

Author: pietroalbini

src/stage0.txt

@@ -12,14 +12,9 @@
 # source tarball for a stable release you'll likely see `1.x.0` for rustc and
 # `0.x.0` for Cargo where they were released on `date`.
 
-date: 2020-01-27
-rustc: 1.41.0
-cargo: 0.42.0
-
-# We use a nightly rustfmt to format the source because it solves some bootstrapping
-# issues with use of new syntax in this repo. If you're looking at the beta/stable branch, this key should be omitted,
-# as we don't want to depend on rustfmt from nightly there.
-#rustfmt: nightly-2019-12-18
+date: 2019-11-04
+rustc: 1.39.0
+cargo: 0.40.0
 
 # When making a stable release the process currently looks like:
 #