Auto merge of rust-lang#83506 - asomers:backtrace-0.3.56, r=Mark-Simulacrum

bors · bors · commit 621d4b7cbf89 · 2021-04-03T01:52:36.000Z
Update backtrace to 0.3.56 Fixes rust-lang#78184
diff --git a/library/backtrace b/library/backtrace
@@ -1 +1 @@
-Subproject commit af078ecc0b069ec594982f92d4c6c58af99efbb5
+Subproject commit 710fc18ddcb6c7677b3c96359abb35da37f2a488
