Try using a PAT

.github/workflows/check-downstream-compiles.yml

@@ -72,7 +72,7 @@ jobs:
           repository: ${{ inputs.repository }}
           path: ${{ github.workspace }}/${{ env.DOWNSTREAM_REPO }}
           submodules: recursive
-          ssh-key: "${{ secrets.SSH_PRIVATE_KEY }}"
+          token: "${{ secrets.SSH_PRIVATE_KEY }}"
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - name: Patch Cargo.toml
@@ -84,9 +84,10 @@ jobs:
           printf "\n[patch.'$URL']\n" | tee -a Cargo.toml
 
           # Get a list of all upstream dependencies used by the downstream crate workspace
+          # This is done by checking for each instance of `git = <upstream_url>` in any of the downstream `Cargo.toml` files
           DEPENDENCIES=$(grep -rsh "git = \"$URL\"" --include="Cargo.toml" .)
 
-          # Extract the dependency names and check for package renames 
+          # Extract the dependency names and check for package renames, removing duplicates
           DEP_NAMES=$(echo "$DEPENDENCIES" | awk '/package =/{for (i=1; i<=NF; i++) if ($i == "package") {name=$(i+2); print substr(name, 2, length(name)-2);} found=1} !/package =/{print $1}' | sort -u)
 
           # Get each workspace member of the upstream crate if they exist