Auto merge of #1826 - hyd-dev:rustup, r=RalfJung

Update `cargo-miri` tests

The test output has been changed recently (likely by rust-lang/rust#84863) and caused a test failure: https://github.com/rust-lang/miri/runs/2761591139#step:8:1228

Author: bors

rust-version

@@ -1 +1 @@
-da865095cf378fbfd07145c25fe5837ea091efeb
+cc9610bf5af1d5c54968db0dd899595ca12307a0

test-cargo-miri/test.default.stdout.ref

@@ -12,8 +12,8 @@ test result: ok. 6 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
 
 running 3 tests
 test src/lib.rs - make_true (line 2) ... ok
-test src/lib.rs - make_true (line 5) ... ok
-test src/lib.rs - make_true (line 8) ... ok
+test src/lib.rs - make_true (line 5) - compile ... ok
+test src/lib.rs - make_true (line 8) - compile fail ... ok
 
 test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 

test-cargo-miri/test.test-target.stdout.ref

@@ -1,10 +1,10 @@
 
 running 7 tests
 test cargo_env ... ok
-test do_panic ... ok
+test do_panic - should panic ... ok
 test does_not_work_on_miri ... ignored
 test entropy_rng ... ok
-test fail_index_check ... ok
+test fail_index_check - should panic ... ok
 test simple1 ... ok
 test simple2 ... ok