github-ci: add ci test using CARGO and RUSTC vars

This uses Ubuntu 24.04 without the default rust packages installed, so
requires the use of RUSTC and CARGO env vars to be set.

Author: jasonish

.github/workflows/builds.yml

@@ -1336,6 +1336,81 @@ jobs:
       - run: make install-headers
       - run: make install-library
 
+  ubuntu-24-04-rust-vars:
+    name: Ubuntu 24.04 (RUSTC+CARGO vars)
+    runs-on: ubuntu-latest
+    container: ubuntu:24.04
+    needs: [prepare-deps]
+    steps:
+      - name: Cache ~/.cargo
+        uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57
+        with:
+          path: ~/.cargo/registry
+          key: cargo-registry
+
+      - name: Determine number of CPUs
+        run: echo CPUS=$(nproc --all) >> $GITHUB_ENV
+
+      - name: Install dependencies
+        run: |
+          apt update
+          apt -y install \
+                autoconf \
+                automake \
+                build-essential \
+                cargo-1.84 \
+                cbindgen \
+                clang-14 \
+                coccinelle \
+                dpdk-dev \
+                git \
+                hwloc \
+                libhwloc-dev \
+                jq \
+                libcap-ng-dev \
+                libevent-dev \
+                libevent-pthreads-2.1-7 \
+                libhiredis-dev \
+                libhyperscan-dev \
+                libjansson-dev \
+                libmagic-dev \
+                libnet1-dev \
+                libnetfilter-queue-dev \
+                libnetfilter-queue1 \
+                libnfnetlink-dev \
+                libnfnetlink0 \
+                libnuma-dev \
+                libpcap-dev \
+                libpcre2-dev \
+                libpython3.12 \
+                libtool \
+                libyaml-dev \
+                llvm-14-dev \
+                make \
+                parallel \
+                python-is-python3 \
+                python3-yaml \
+                rustc-1.84 \
+                software-properties-common \
+                zlib1g \
+                zlib1g-dev
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+      - run: git config --global --add safe.directory /__w/suricata/suricata
+      - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093
+        with:
+          name: prep
+          path: prep
+      - run: tar xf prep/suricata-update.tar.gz
+      - run: tar xf prep/suricata-verify.tar.gz
+      - run: ./autogen.sh
+      - run: ./configure --enable-unittests --enable-coccinelle
+      - run: make -j ${{ env.CPUS }}
+      - run: CONCURRENCY_LEVEL=${{ env.CPUS }} make check
+      - run: python3 ./suricata-verify/run.py -q --debug-failed
+      - run: make install
+      - run: make install-headers
+      - run: make install-library
+
   ubuntu-24-04-cov-ut:
     name: Ubuntu 24.04 (unittests coverage)
     runs-on: ubuntu-latest