Set stalled=false when encountering an error

diff --git a/src/librustc_data_structures/obligation_forest/mod.rs b/src/librustc_data_structures/obligation_forest/mod.rs
index fb2d3291a601b8c4d9b7b9bb48ad03780432f53b..5e590cb445f79967be49d645839331aa646f068b 100644 (file)
--- a/src/librustc_data_structures/obligation_forest/mod.rs
+++ b/src/librustc_data_structures/obligation_forest/mod.rs
@@ -333,6 +333,7 @@ pub fn process_obligations<P>(&mut self, processor: &mut P) -> Outcome<O, P::Err
                     }
                 }
                 Err(err) => {
+                    stalled = false;
                     let backtrace = self.error_at(index);
                     errors.push(Error {
                         error: err,