Auto merge of #2775 - RalfJung:rustup, r=RalfJung

Rustup

Author: bors

ci.sh

@@ -43,8 +43,7 @@ function run_tests {
     # optimizations up all the way, too).
     # Optimizations change diagnostics (mostly backtraces), so we don't check
     # them. Also error locations change so we don't run the failing tests.
-    #FIXME: temporarily disabled due to <https://github.com/rust-lang/rust/issues/107511>.
-    #MIRIFLAGS="${MIRIFLAGS:-} -O -Zmir-opt-level=4" MIRI_SKIP_UI_CHECKS=1 ./miri test -- tests/{pass,panic}
+    MIRIFLAGS="${MIRIFLAGS:-} -O -Zmir-opt-level=4" MIRI_SKIP_UI_CHECKS=1 ./miri test -- tests/{pass,panic}
 
     # Also run some many-seeds tests. 64 seeds means this takes around a minute per test.
     for FILE in tests/many-seeds/*.rs; do

rust-version

@@ -1 +1 @@
-0d32c8f2ce10710b6560dcb75f32f79c378410d0
+f3126500f25114ba4e0ac3e76694dd45a22de56d