diff --git a/test/core/event_engine/test_suite/oracle_event_engine_posix.cc b/test/core/event_engine/test_suite/oracle_event_engine_posix.cc
index 3a7507ecb6d..06f375e514c 100644
--- a/test/core/event_engine/test_suite/oracle_event_engine_posix.cc
+++ b/test/core/event_engine/test_suite/oracle_event_engine_posix.cc
@@ -321,7 +321,7 @@ PosixOracleListener::~PosixOracleListener() {
     shutdown(listener_fds_[i], SHUT_RDWR);
   }
   // Send a STOP message over the pipe.
-  write(pipefd_[1], kStopMessage, strlen(kStopMessage));
+  GPR_ASSERT(write(pipefd_[1], kStopMessage, strlen(kStopMessage)) != -1);
   serve_.Join();
   on_shutdown_(absl::OkStatus());
 }
diff --git a/test/core/iomgr/tcp_posix_test.cc b/test/core/iomgr/tcp_posix_test.cc
index 1b7aa68f517..e7abccc0c3d 100644
--- a/test/core/iomgr/tcp_posix_test.cc
+++ b/test/core/iomgr/tcp_posix_test.cc
@@ -155,7 +155,7 @@ static size_t fill_socket_partial(int fd, size_t bytes) {
 
 struct read_socket_state {
   grpc_endpoint* ep;
-  int min_progress_size;
+  size_t min_progress_size;
   size_t read_bytes;
   size_t target_read_bytes;
   grpc_slice_buffer incoming;
diff --git a/test/core/memory_usage/callback_server.cc b/test/core/memory_usage/callback_server.cc
index dd29c78b643..df82601c238 100644
--- a/test/core/memory_usage/callback_server.cc
+++ b/test/core/memory_usage/callback_server.cc
@@ -45,15 +45,15 @@ class ServerCallbackImpl final
 
   grpc::ServerUnaryReactor* UnaryCall(
       grpc::CallbackServerContext* context,
-      const grpc::testing::SimpleRequest* request,
-      grpc::testing::SimpleResponse* response) override {
+      const grpc::testing::SimpleRequest* /* request */,
+      grpc::testing::SimpleResponse* /* response */) override {
     auto* reactor = context->DefaultReactor();
     reactor->Finish(grpc::Status::OK);
     return reactor;
   }
   grpc::ServerUnaryReactor* GetBeforeSnapshot(
       grpc::CallbackServerContext* context,
-      const grpc::testing::SimpleRequest* request,
+      const grpc::testing::SimpleRequest* /* request */,
       grpc::testing::MemorySize* response) override {
     gpr_log(GPR_INFO, "BeforeSnapshot RPC CALL RECEIVED");
     response->set_rss(before_server_create);
diff --git a/tools/internal_ci/linux/grpc_bazel_build_in_docker.sh b/tools/internal_ci/linux/grpc_bazel_build_in_docker.sh
index 2d02c529d06..cd8262468c1 100755
--- a/tools/internal_ci/linux/grpc_bazel_build_in_docker.sh
+++ b/tools/internal_ci/linux/grpc_bazel_build_in_docker.sh
@@ -17,6 +17,9 @@
 # clang compiler to check if sources can pass a set of warning options.
 # For now //examples/android/binder/ are excluded because it needs Android
 # SDK/NDK to be installed to build
+
+set -ex
+
 python3 tools/run_tests/python_utils/bazel_report_helper.py --report_path bazel_build_with_strict_warnings
 bazel_build_with_strict_warnings/bazel_wrapper \
   --bazelrc=tools/remote_build/include/test_locally_with_resultstore_results.bazelrc \
@@ -36,11 +39,11 @@ bazel_build_with_strict_warnings/bazel_wrapper \
 # details.
 # Test that builds with --define=grpc_no_xds=true work.
 bazel build //test/cpp/end2end:end2end_test --define=grpc_no_xds=true
+
 # Test that builds that need xDS do not build with --define=grpc_no_xds=true
 EXIT_CODE=0
 bazel build //test/cpp/end2end/xds:xds_end2end_test --define=grpc_no_xds=true || EXIT_CODE=$?
-if [ $EXIT_CODE -eq 0 ]
-then
+if [ $EXIT_CODE -eq 0 ]; then
   echo "Building xds_end2end_test succeeded even with --define=grpc_no_xds=true"
   exit 1
 fi