Try to debug/fix OpenSSL linking under Windows CI

Author: mqudsi

.github/workflows/rust.yml

@@ -18,9 +18,17 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
-    - name: Set OPENSSL_DIR for Windows
+    - name: Configure OpenSSL
       if: startsWith(matrix.os, 'windows')
-      run: echo "OPENSSL_DIR=C:\Program Files\OpenSSL" >> $env:GITHUB_ENV
+      run: |
+        dir "C:\Program Files\OpenSSL"
+        dir "C:\Program Files\OpenSSL\lib"
+        dir "C:\Program Files\OpenSSL\lib\VC\x64"
+        dir "C:\Program Files\OpenSSL\lib\VC\x64\MD"
+        echo "OPENSSL_DIR=C:\Program Files\OpenSSL" >> $env:GITHUB_ENV
+        echo "OPENSSL_INCLUDE_DIR=C:\Program Files\OpenSSL\include" >> $env:GITHUB_ENV
+        echo "OPENSSL_LIB_DIR=C:\Program Files\OpenSSL\lib\VC\x64\MD" >> $env:GITHUB_ENV
+        echo "C:\Program Files\OpenSSL" >> $env:GITHUB_PATH
     - name: Build
       run: cargo build --verbose
     - name: Run tests