come on CI, do the things

.github/workflows/package-test.yaml

@@ -22,6 +22,54 @@ jobs:
         with:
           prefix-key: "v1-pgrx--package-test"
 
+      - name: Set up prerequisites and environment
+        run: |
+          sudo apt-get update -y -qq --fix-missing
+          
+          echo ""
+          echo "----- Install sccache -----"
+          mkdir -p $HOME/.local/bin
+          curl -L https://github.com/mozilla/sccache/releases/download/v0.2.15/sccache-v0.2.15-x86_64-unknown-linux-musl.tar.gz | tar xz
+          mv -f sccache-v0.2.15-x86_64-unknown-linux-musl/sccache $HOME/.local/bin/sccache
+          chmod +x $HOME/.local/bin/sccache
+          echo "$HOME/.local/bin" >> $GITHUB_PATH
+          mkdir -p /home/runner/.cache/sccache
+          echo ""
+          
+          echo "----- Set up dynamic variables -----"
+          cat $GITHUB_ENV
+          echo ""
+          
+          echo "----- Remove old postgres -----"
+          sudo apt remove -y '^postgres.*' '^libpq.*' '^clang.*' '^llvm.*' '^libclang.*' '^libllvm.*' '^mono-llvm.*'
+          echo ""
+          
+          echo "----- Install system dependencies -----"
+          sudo apt-get install -y \
+            build-essential \
+            llvm-14-dev libclang-14-dev clang-14 \
+            gcc \
+            libssl-dev \
+            libz-dev \
+            make \
+            pkg-config \
+            strace \
+            zlib1g-dev
+          echo ""
+
+          "$TOOL_DIR"/rustup.sh
+
+          echo "----- Set up cross compilation -----"
+          sudo apt-get install -y --fix-missing crossbuild-essential-arm64
+
+          echo 'CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=aarch64-linux-gnu-gcc' >> $GITHUB_ENV
+          # TODO: not all of these should be needed, but for now it's likely fine.
+          echo 'BINDGEN_EXTRA_CLANG_ARGS_aarch64-unknown-linux-gnu=-target aarch64-unknown-linux-gnu -isystem /usr/aarch64-linux-gnu/include/ -ccc-gcc-name aarch64-linux-gnu-gcc' >> $GITHUB_ENV
+          
+          echo "----- Print env -----"
+          env
+          echo ""
+
       - name: Setup release Postgres apt repo
         run: |
           sudo apt-get install -y wget gnupg
@@ -31,7 +79,7 @@ jobs:
       - name: Install Postgres deps
         run: |
           sudo apt-get update -y -qq --fix-missing
-          sudo apt-get install -y postgresql-server-dev-$PG_VER
+          sudo apt-get install -y postgresql-$PG_VER postgresql-server-dev-$PG_VER
 
       - name: Rustup
         run: $TOOL_DIR/rustup.sh nightly