Auto merge of #2996 - rust-lang:rustup-2023-07-30, r=oli-obk

Automatic sync from rustc

Author: bors

README.md

@@ -482,7 +482,7 @@ Moreover, Miri recognizes some environment variables:
   purpose.
 * `MIRI_NO_STD` (recognized by `cargo miri` and the test suite) makes sure that the target's
   sysroot is built without libstd. This allows testing and running no_std programs.
-* `MIRI_BLESS` (recognized by the test suite and `cargo-miri-test/run-test.py`): overwrite all
+* `RUSTC_BLESS` (recognized by the test suite and `cargo-miri-test/run-test.py`): overwrite all
   `stderr` and `stdout` files instead of checking whether the output matches.
 * `MIRI_SKIP_UI_CHECKS` (recognized by the test suite): don't check whether the
   `stderr` or `stdout` files match the actual output.

miri

@@ -303,7 +303,7 @@ test|bless)
     $CARGO build $CARGO_EXTRA_FLAGS --manifest-path "$MIRIDIR"/Cargo.toml
     find_sysroot
     if [ "$COMMAND" = "bless" ]; then
-        export MIRI_BLESS="Gesundheit"
+        export RUSTC_BLESS="Gesundheit"
     fi
     # Then test, and let caller control flags.
     # Only in root project as `cargo-miri` has no tests.

rust-version

@@ -1 +1 @@
-d150dbb067e66f351a0b33a54e7d4b464ef51e47
+fb53384c94b87adebceb6048865c9fe305e71b92

test-cargo-miri/run-test.py

@@ -8,8 +8,8 @@
 import difflib
 import os
 import re
-import sys
 import subprocess
+import sys
 
 CGREEN  = '\33[32m'
 CBOLD   = '\33[1m'
@@ -37,7 +37,8 @@ def normalize_stderr(str):
     return str
 
 def check_output(actual, path, name):
-    if 'MIRI_BLESS' in os.environ:
+    if os.environ.get("RUSTC_BLESS", "0") != "0":
+        # Write the output only if bless is set
         open(path, mode='w').write(actual)
         return True
     expected = open(path).read()

tests/compiletest.rs

@@ -72,13 +72,14 @@ fn test_config(target: &str, path: &str, mode: Mode, with_dependencies: bool) ->
         program.args.push(flag);
     }
 
+    let bless = env::var_os("RUSTC_BLESS").is_some_and(|v| v != "0");
     let skip_ui_checks = env::var_os("MIRI_SKIP_UI_CHECKS").is_some();
 
-    let output_conflict_handling = match (env::var_os("MIRI_BLESS").is_some(), skip_ui_checks) {
+    let output_conflict_handling = match (bless, skip_ui_checks) {
         (false, false) => OutputConflictHandling::Error("./miri bless".into()),
         (true, false) => OutputConflictHandling::Bless,
         (false, true) => OutputConflictHandling::Ignore,
-        (true, true) => panic!("cannot use MIRI_BLESS and MIRI_SKIP_UI_CHECKS at the same time"),
+        (true, true) => panic!("cannot use RUSTC_BLESS and MIRI_SKIP_UI_CHECKS at the same time"),
     };
 
     let mut config = Config {

tests/fail/both_borrows/shr_frozen_violation1.rs

@@ -1,7 +1,7 @@
 //@revisions: stack tree
 //@[tree]compile-flags: -Zmiri-tree-borrows
 
-#![allow(cast_ref_to_mut)]
+#![allow(invalid_reference_casting)]
 
 fn foo(x: &mut i32) -> i32 {
     *x = 5;

tests/fail/modifying_constants.rs

@@ -1,7 +1,7 @@
 // This should fail even without validation/SB
 //@compile-flags: -Zmiri-disable-validation -Zmiri-disable-stacked-borrows
 
-#![allow(cast_ref_to_mut)]
+#![allow(invalid_reference_casting)]
 
 fn main() {
     let x = &1; // the `&1` is promoted to a constant, but it used to be that only the pointer is marked static, not the pointee