Auto merge of #79132 - pietroalbini:beta-next, r=Mark-Simulacrum

Prepare beta 1.49.0

This PR sets everything up for beta 1.49.0, and backports the following PRs to it:

* #79107 - build-manifest: strip newline from rustc version
* #78986 - Avoid installing external LLVM dylibs
* #79074 - Install CI llvm into the library directory
* #78364 - Update RELEASES.md for 1.48.0
* #77939 - Ensure that the source code display is working with DOS backline

r? `@ghost`
cc `@rust-lang/release`

4 files changed, 31 insertions, 36 deletions

diff --git a/src/bootstrap/dist.rs b/src/bootstrap/dist.rs
index 9b77e38a847..29fccc0533b 100644
--- a/src/bootstrap/dist.rs
+++ b/src/bootstrap/dist.rs
@@ -1336,7 +1336,13 @@ impl Step for Rls {
         let rls = builder
             .ensure(tool::Rls { compiler, target, extra_features: Vec::new() })
             .or_else(|| {
-                missing_tool("RLS", builder.build.config.missing_tools);
+                // We ignore failure on aarch64 Windows because RLS currently
+                // fails to build, due to winapi 0.2 not supporting aarch64.
+                missing_tool(
+                    "RLS",
+                    builder.build.config.missing_tools
+                        || (target.triple.contains("aarch64") && target.triple.contains("windows")),
+                );
                 None
             })?;
 
diff --git a/src/ci/run.sh b/src/ci/run.sh
index 181a7fcb732..8681f84f6ab 100755
--- a/src/ci/run.sh
+++ b/src/ci/run.sh
@@ -63,7 +63,7 @@ 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
 
 # Always set the release channel for bootstrap; this is normally not important (i.e., only dist
 # builds would seem to matter) but in practice bootstrap wants to know whether we're targeting
diff --git a/src/stage0.txt b/src/stage0.txt
index 9eaa58dd438..e5fe11004ab 100644
--- a/src/stage0.txt
+++ b/src/stage0.txt
@@ -12,15 +12,15 @@
 # source tarball for a stable release you'll likely see `1.x.0` for rustc and
 # `0.(x+1).0` for Cargo where they were released on `date`.
 
-date: 2020-10-16
-rustc: beta
-cargo: beta
+date: 2020-11-16
+rustc: 1.48.0
+cargo: 1.48.0
 
 # 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-2020-10-12
+#rustfmt: nightly-2020-10-12
 
 # When making a stable release the process currently looks like:
 #
@@ -40,4 +40,4 @@ rustfmt: nightly-2020-10-12
 # looking at a beta source tarball and it's uncommented we'll shortly comment it
 # out.
 
-#dev: 1
+dev: 1
diff --git a/src/test/ui-fulldeps/session-derive-errors.stderr b/src/test/ui-fulldeps/session-derive-errors.stderr
index c1be151f1c1..303268fae27 100644
--- a/src/test/ui-fulldeps/session-derive-errors.stderr
+++ b/src/test/ui-fulldeps/session-derive-errors.stderr
@@ -1,25 +1,20 @@
 error: `#[derive(SessionDiagnostic)]` can only be used on structs
   --> $DIR/session-derive-errors.rs:28:1
    |
-LL | / #[error = "E0123"]
-LL | |
-LL | | enum SessionDiagnosticOnEnum {
-LL | |     Foo,
-LL | |     Bar,
-LL | | }
-   | |_^
+LL | #[error = "E0123"]
+   | ^
 
 error: `#[label = ...]` is not a valid SessionDiagnostic struct attribute
   --> $DIR/session-derive-errors.rs:37:1
    |
 LL | #[label = "This is in the wrong place"]
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   | ^
 
 error: `#[suggestion = ...]` is not a valid SessionDiagnostic field attribute
   --> $DIR/session-derive-errors.rs:44:5
    |
 LL |     #[suggestion = "this is the wrong kind of attribute"]
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |     ^
 
 error: `error` specified multiple times
   --> $DIR/session-derive-errors.rs:52:11
@@ -37,7 +32,7 @@ error: `code` not specified
   --> $DIR/session-derive-errors.rs:67:1
    |
 LL | struct ErrorCodeNotProvided {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   | ^^^^^^
    |
    = help: use the [code = "..."] attribute to set this diagnostic's error code 
 
@@ -45,13 +40,13 @@ error: the `#[message = "..."]` attribute can only be applied to fields of type
   --> $DIR/session-derive-errors.rs:95:5
    |
 LL |     #[message = "this message is applied to a String field"]
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |     ^
 
 error: `name` doesn't refer to a field on this type
   --> $DIR/session-derive-errors.rs:102:1
    |
 LL | #[message = "This error has a field, and references {name}"]
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   | ^
 
 error: invalid format string: expected `'}'` but string was terminated
   --> $DIR/session-derive-errors.rs:110:1
@@ -77,59 +72,53 @@ error: The `#[label = ...]` attribute can only be applied to fields of type Span
   --> $DIR/session-derive-errors.rs:138:5
    |
 LL |     #[label = "See here"]
-   |     ^^^^^^^^^^^^^^^^^^^^^
+   |     ^
 
 error: `nonsense` is not a valid key for `#[suggestion(...)]`
   --> $DIR/session-derive-errors.rs:163:18
    |
 LL |     #[suggestion(nonsense = "This is nonsense")]
-   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |                  ^^^^^^^^
 
 error: `msg` is not a valid key for `#[suggestion(...)]`
   --> $DIR/session-derive-errors.rs:171:18
    |
 LL |     #[suggestion(msg = "This is a suggestion")]
-   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |                  ^^^
 
 error: missing suggestion message
   --> $DIR/session-derive-errors.rs:179:7
    |
 LL |     #[suggestion(code = "This is suggested code")]
-   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |       ^^^^^^^^^^
    |
    = help: provide a suggestion message using #[suggestion(message = "...")]
 
 error: wrong field type for suggestion
   --> $DIR/session-derive-errors.rs:194:5
    |
-LL | /     #[suggestion(message = "This is a message", code = "This is suggested code")]
-LL | |
-LL | |     suggestion: Applicability,
-   | |_____________________________^
+LL |     #[suggestion(message = "This is a message", code = "This is suggested code")]
+   |     ^
    |
    = help: #[suggestion(...)] should be applied to fields of type Span or (Span, Applicability)
 
 error: type of field annotated with `#[suggestion(...)]` contains more than one Span
   --> $DIR/session-derive-errors.rs:209:5
    |
-LL | /     #[suggestion(message = "This is a message", code = "This is suggested code")]
-LL | |
-LL | |     suggestion: (Span, Span, Applicability),
-   | |___________________________________________^
+LL |     #[suggestion(message = "This is a message", code = "This is suggested code")]
+   |     ^
 
 error: type of field annotated with `#[suggestion(...)]` contains more than one Applicability
   --> $DIR/session-derive-errors.rs:217:5
    |
-LL | /     #[suggestion(message = "This is a message", code = "This is suggested code")]
-LL | |
-LL | |     suggestion: (Applicability, Applicability, Span),
-   | |____________________________________________________^
+LL |     #[suggestion(message = "This is a message", code = "This is suggested code")]
+   |     ^
 
 error: invalid annotation list `#[label(...)]`
   --> $DIR/session-derive-errors.rs:225:7
    |
 LL |     #[label("wrong kind of annotation for label")]
-   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |       ^^^^^
 
 error: aborting due to 18 previous errors