Debug more information when we fail to find a lock call symbol

diff --git a/lightning/src/sync/debug_sync.rs b/lightning/src/sync/debug_sync.rs
index 2b75e095380ec09f22d07d4d1bd636dd93e53c61..5968a79ee4daa50439a3cac96478c49d3803458b 100644 (file)
--- a/lightning/src/sync/debug_sync.rs
+++ b/lightning/src/sync/debug_sync.rs
@@ -103,7 +103,9 @@ fn locate_call_symbol(backtrace: &Backtrace) -> (String, Option<u32>) {
                        }
                }
        }
-       let symbol = symbol_after_latest_debug_sync.expect("Couldn't find lock call symbol");
+       let symbol = symbol_after_latest_debug_sync.unwrap_or_else(|| {
+               panic!("Couldn't find lock call symbol in trace {:?}", backtrace);
+       });
        (format!("{}:{}", symbol.filename().unwrap().display(), symbol.lineno().unwrap()), symbol.colno())
 }