tests/docker: replicate the check-rust-tools-nightly CI job

This allows people to run the test locally:

  make docker-test-rust@fedora-rust-nightly

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250207153112.3939799-2-alex.bennee@linaro.org>

MAINTAINERS

@@ -3386,6 +3386,7 @@ F: rust/rustfmt.toml
 
 Rust-related patches CC here
 L: qemu-rust@nongnu.org
+F: tests/docker/test-rust
 F: rust/
 
 SLIRP

tests/docker/Makefile.include

@@ -236,3 +236,6 @@ docker-image: ${DOCKER_IMAGES:%=docker-image-%}
 
 docker-clean:
 	$(call quiet-command, $(DOCKER_SCRIPT) clean)
+
+# Overrides
+docker-test-rust%: NETWORK=1

tests/docker/test-rust

@@ -0,0 +1,21 @@
+#!/bin/bash -e
+#
+# Run the rust code checks (a.k.a. check-rust-tools-nightly)
+#
+# Copyright (c) 2025 Linaro Ltd
+#
+# Authors:
+#  Alex Bennée <alex.bennee@linaro.org>
+#
+# This work is licensed under the terms of the GNU GPL, version 2
+# or (at your option) any later version. See the COPYING file in
+# the top-level directory.
+
+. common.rc
+
+cd "$BUILD_DIR"
+
+configure_qemu --disable-user --disable-docs --enable-rust
+pyvenv/bin/meson devenv -w $QEMU_SRC/rust ${CARGO-cargo} fmt --check
+make clippy
+make rustdoc