Rollup merge of #79250 - RalfJung:miri, r=RalfJung

Dylan-DPC · web-flow · commit 4123fb5556ee · 2020-11-21T03:26:50.000+01:00
update miri Fixes #79226 Cc `@rust-lang/miri` r? `@ghost`
diff --git a/src/tools/miri b/src/tools/miri
@@ -1 +1 @@
-Subproject commit c8f51fc5a772a125f3b3ad7fe46609a4638ca509
+Subproject commit 746ea5b141baf1f86c2ad17753a37b135e0c1aa3
