Fix Cycles render not stopping on OpenImageDenoise error

Stop so that render farms do not save an image that failed to be denoised
properly and assume it is correct.

intern/cycles/integrator/denoiser.h

@@ -97,6 +97,11 @@ class Denoiser {
     return is_cancelled_cb();
   }
 
+  void set_error(const string &error)
+  {
+    path_trace_device_->set_error(error);
+  }
+
  protected:
   Denoiser(Device *path_trace_device, const DenoiseParams &params);
 

intern/cycles/integrator/denoiser_oidn.cpp

@@ -181,7 +181,7 @@ class OIDNDenoiseContext {
     const char *error_message;
     const oidn::Error error = oidn_device.getError(error_message);
     if (error != oidn::Error::None && error != oidn::Error::Cancelled) {
-      LOG(ERROR) << "OpenImageDenoise error: " << error_message;
+      denoiser_->set_error("OpenImageDenoise error: " + string(error_message));
     }
 
     postprocess_output(oidn_color_pass, oidn_output_pass);