Auto merge of #66108 - pietroalbini:beta-next, r=Mark-Simulacrum

Prepare beta 1.40.0

cc @Mark-Simulacrum

src/bootstrap/builder.rs

@@ -886,7 +886,18 @@ impl<'a> Builder<'a> {
         // things still build right, please do!
         match mode {
             Mode::Std => metadata.push_str("std"),
-            _ => {},
+            // When we're building rustc tools, they're built with a search path
+            // that contains things built during the rustc build. For example,
+            // bitflags is built during the rustc build, and is a dependency of
+            // rustdoc as well. We're building rustdoc in a different target
+            // directory, though, which means that Cargo will rebuild the
+            // dependency. When we go on to build rustdoc, we'll look for
+            // bitflags, and find two different copies: one built during the
+            // rustc step and one that we just built. This isn't always a
+            // problem, somehow -- not really clear why -- but we know that this
+            // fixes things.
+            Mode::ToolRustc => metadata.push_str("tool-rustc"),
+            _ => {}
         }
         cargo.env("__CARGO_DEFAULT_LIB_METADATA", &metadata);
 

src/ci/run.sh

@@ -45,7 +45,7 @@ fi
 #
 # FIXME: need a scheme for changing this `nightly` value to `beta` and `stable`
 #        either automatically or manually.
-export RUST_RELEASE_CHANNEL=nightly
+export RUST_RELEASE_CHANNEL=beta
 if [ "$DEPLOY$DEPLOY_ALT" = "1" ]; then
   RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --release-channel=$RUST_RELEASE_CHANNEL"
   RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --enable-llvm-static-stdcpp"

src/stage0.txt

@@ -12,9 +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: 2019-09-25
-rustc: beta
-cargo: beta
+date: 2019-11-04
+rustc: 1.39.0
+cargo: 0.40.0
 
 # When making a stable release the process currently looks like:
 #
@@ -34,4 +34,4 @@ cargo: beta
 # looking at a beta source tarball and it's uncommented we'll shortly comment it
 # out.
 
-#dev: 1
+dev: 1