Refactor: Improve TLS stream handling and add test script

Co-authored-by: contact <[email protected]>

Author: cursoragent

sqlx-core/src/net/tls/mod.rs

@@ -142,7 +142,7 @@ where
 
     pub fn downgrade(&mut self) -> Result<(), Error> {
         match replace(self, MaybeTlsStream::Upgrading) {
-            MaybeTlsStream::Tls(mut boxed_stream) => {
+            MaybeTlsStream::Tls(boxed_stream) => {
                 #[cfg(feature = "_tls-rustls")]
                 {
                     let raw = boxed_stream.into_inner().0;

test_all_features.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+. "/usr/local/cargo/env"
+
+DATABASES=("postgres" "mysql" "sqlite" "mssql" "any")
+TOTAL=0
+PASSED=0
+FAILED=0
+
+echo "Testing clippy for all tokio-rustls + database combinations..."
+
+for DATABASE in "${DATABASES[@]}"; do
+    ((TOTAL++))
+    echo -n "Testing runtime-tokio-rustls + $DATABASE... "
+    
+    if cargo +nightly clippy -p sqlx-core-oldapi --no-default-features --features "runtime-tokio-rustls,$DATABASE" -- -D warnings >/dev/null 2>&1; then
+        echo "✓"
+        ((PASSED++))
+    else
+        echo "✗"
+        ((FAILED++))
+    fi
+done
+
+echo ""
+echo "Summary: $PASSED/$TOTAL passed"
+
+if [ $FAILED -eq 0 ]; then
+    echo "✓ All tests passed!"
+    exit 0
+else
+    echo "✗ $FAILED tests failed"
+    exit 1
+fi