Merge ref '1553adfe6884' from rust-lang/rust

Pull recent changes from https://github.com/rust-lang/rust via Josh.

Upstream ref: 1553adf
Filtered ref: e5ee70aa5f36dacdc6df9490e867c45aa4e51c18

This merge was created using https://github.com/rust-lang/josh-sync.

Author: The Miri Cronjob Bot

.github/ISSUE_TEMPLATE/documentation.yaml

@@ -1,5 +1,5 @@
 name: Documentation problem
-description: Create a report for a documentation problem.
+description: Report an issue with documentation content.
 labels: ["A-docs"]
 body:
   - type: markdown
@@ -19,20 +19,20 @@ body:
         - [The Rustonomicon](https://github.com/rust-lang/nomicon/issues)
         - [The Embedded Book](https://github.com/rust-embedded/book/issues)
 
-        All other documentation issues should be filed here.
+        Or, if you find an issue related to rustdoc (e.g. doctest, rustdoc UI), please use the rustdoc issue template instead.
 
-        Or, if you find an issue related to rustdoc (e.g. doctest, rustdoc UI), please use the bug report or blank issue template instead.
+        All other documentation issues should be filed here.
 
   - type: textarea
     id: location
     attributes:
-      label: Location
+      label: Location (URL)
     validations:
-      required: true 
+      required: true
 
   - type: textarea
     id: summary
     attributes:
       label: Summary
     validations:
-      required: true 
+      required: true

Cargo.lock

@@ -5284,9 +5284,9 @@ dependencies = [
 
 [[package]]
 name = "sysinfo"
-version = "0.36.1"
+version = "0.37.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "252800745060e7b9ffb7b2badbd8b31cfa4aa2e61af879d0a3bf2a317c20217d"
+checksum = "07cec4dc2d2e357ca1e610cfb07de2fa7a10fc3e9fe89f72545f3d244ea87753"
 dependencies = [
  "libc",
  "objc2-core-foundation",

bootstrap.example.toml

@@ -740,11 +740,19 @@
 # result (broken, compiling, testing) into this JSON file.
 #rust.save-toolstates = <none> (path)
 
-# This is an array of the codegen backends that will be compiled for the rustc
-# that's being compiled. The default is to only build the LLVM codegen backend,
-# and currently the only standard options supported are `"llvm"`, `"cranelift"`
-# and `"gcc"`. The first backend in this list will be used as default by rustc
-# when no explicit backend is specified.
+# This array serves three distinct purposes:
+# - Backends in this list will be automatically compiled and included in the sysroot of each
+# rustc compiled by bootstrap.
+# - The first backend in this list will be configured as the **default codegen backend** by each
+# rustc compiled by bootstrap. In other words, if the first backend is e.g. cranelift, then when
+# we build a stage 1 rustc, it will by default compile Rust programs using the Cranelift backend.
+# This also means that stage 2 rustc would get built by the Cranelift backend.
+# - Running `x dist` (without additional arguments, or with `--include-default-paths`) will produce
+# a dist component/tarball for the Cranelift backend if it is included in this array.
+#
+# Note that the LLVM codegen backend is special and will always be built and distributed.
+#
+# Currently, the only standard options supported here are `"llvm"`, `"cranelift"` and `"gcc"`.
 #rust.codegen-backends = ["llvm"]
 
 # Indicates whether LLD will be compiled and made available in the sysroot for rustc to execute, and