Rollup merge of #78276 - cutsoy:bump-backtrace, r=nagisa

jonas-schievink · web-flow · commit e13f2fb42d77 · 2020-10-24T20:30:28.000+02:00
Bump backtrace-rs to enable Mach-O support on iOS. Related to rust-lang/backtrace-rs#378. Fixes backtraces on iOS that were missing in Rust v1.47.0 after switching to gimli because it only enabled Mach-O support on macOS.
diff --git a/library/backtrace b/library/backtrace
@@ -1 +1 @@
-Subproject commit a6dd47bd588c882e735675a1379d2b61719fa380
+Subproject commit 8b8ea53b56f519dd7780defdd4254daaec892584
