From 121b255ae5b40aebc3a77a2a74c20a2e2dbb19c4 Mon Sep 17 00:00:00 2001
From: Richard Feldman <oss@rtfeldman.com>
Date: Wed, 20 Nov 2019 19:42:33 -0500
Subject: [PATCH] Fix canonicalization more

---
 src/can/mod.rs | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/src/can/mod.rs b/src/can/mod.rs
index 4fcedfcfc5..2977e2a8e5 100644
--- a/src/can/mod.rs
+++ b/src/can/mod.rs
@@ -1698,14 +1698,10 @@ fn can_defs<'a>(
                 // Topological sort gives us the reverse of the sorting we want!
                 .rev()
             {
-                let can_def = can_defs_by_symbol.get(&symbol).unwrap_or_else(|| {
-                    panic!(
-                        "Symbol not found in can_defs_by_symbol: {:?} - can_defs_by_symbol was: {:?}",
-                        symbol, can_defs_by_symbol
-                    )
-                });
-
-                can_defs.push(can_def.clone());
+                match can_defs_by_symbol.get(&symbol) {
+                    Some(can_def) => can_defs.push(can_def.clone()),
+                    None => (),
+                }
             }
 
             (