Auto merge of #93138 - matthiaskrgr:rollup-m8akifd, r=matthiaskrgr

Rollup of 17 pull requests

Successful merges:

 - #91032 (Introduce drop range tracking to generator interior analysis)
 - #92856 (Exclude "test" from doc_auto_cfg)
 - #92860 (Fix errors on blanket impls by ignoring the children of generated impls)
 - #93038 (Fix star handling in block doc comments)
 - #93061 (Only suggest adding `!` to expressions that can be macro invocation)
 - #93067 (rustdoc mobile: fix scroll offset when jumping to internal id)
 - #93086 (Add tests to ensure that `let_chains` works with `if_let_guard`)
 - #93087 (Fix src/test/run-make/raw-dylib-alt-calling-convention)
 - #93091 (⬆ chalk to 0.76.0)
 - #93094 (src/test/rustdoc-json: Check for `struct_field`s in `variant_tuple_struct.rs`)
 - #93098 (Show a more informative panic message when `DefPathHash` does not exist)
 - #93099 (rustdoc: auto create output directory when "--output-format json")
 - #93102 (Pretty printer algorithm revamp step 3)
 - #93104 (Support --bless for pp-exact pretty printer tests)
 - #93114 (update comment for `ensure_monomorphic_enough`)
 - #93128 (Add script to prevent point releases with same number as existing ones)
 - #93136 (Backport the 1.58.1 release notes to master)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

2 files changed, 34 insertions, 0 deletions

diff --git a/src/ci/github-actions/ci.yml b/src/ci/github-actions/ci.yml
index a70cdc4b519..cc282fc2f0e 100644
--- a/src/ci/github-actions/ci.yml
+++ b/src/ci/github-actions/ci.yml
@@ -206,6 +206,10 @@ x--expand-yaml-anchors--remove:
         run: src/ci/scripts/verify-backported-commits.sh
         <<: *step
 
+      - name: ensure the stable version number is correct
+        run: src/ci/scripts/verify-stable-version-number.sh
+        <<: *step
+
       - name: run the build
         run: src/ci/scripts/run-build-from-ci.sh
         env:
diff --git a/src/ci/scripts/verify-stable-version-number.sh b/src/ci/scripts/verify-stable-version-number.sh
new file mode 100755
index 00000000000..82eb3833ccf
--- /dev/null
+++ b/src/ci/scripts/verify-stable-version-number.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+# On the stable channel, check whether we're trying to build artifacts with the
+# same version number of a release that's already been published, and fail the
+# build if that's the case.
+#
+# It's a mistake whenever that happens: the release process won't start if it
+# detects a duplicate version number, and the artifacts would have to be
+# rebuilt anyway.
+
+set -euo pipefail
+IFS=$'\n\t'
+
+if [[ "$(cat src/ci/channel)" != "stable" ]]; then
+    echo "This script only works on the stable channel. Skipping the check."
+    exit 0
+fi
+
+version="$(cat src/version)"
+url="https://static.rust-lang.org/dist/channel-rust-${version}.toml"
+
+if curl --silent --fail "${url}" >/dev/null; then
+    echo "The version number ${version} matches an existing release."
+    echo
+    echo "If you're trying to prepare a point release, remember to change the"
+    echo "version number in the src/version file."
+    exit 1
+else
+    echo "The version number ${version} does not match any released version!"
+    exit 0
+fi