Auto merge of #97546 - RalfJung:miri, r=oli-obk

update Miri

First update with the new ui test suite, let's hope this all works. :)
r? `@oli-obk`

Fixes #97486

Cargo.lock

@@ -220,7 +220,7 @@ dependencies = [
  "libc",
  "once_cell",
  "opener",
- "pretty_assertions",
+ "pretty_assertions 0.7.2",
  "serde",
  "serde_json",
  "tar",
@@ -883,6 +883,20 @@ dependencies = [
  "cfg-if 0.1.10",
 ]
 
+[[package]]
+name = "crossbeam"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4ae5588f6b3c3cb05239e90bd110f257254aecd01e4635400391aeae07497845"
+dependencies = [
+ "cfg-if 1.0.0",
+ "crossbeam-channel",
+ "crossbeam-deque",
+ "crossbeam-epoch",
+ "crossbeam-queue",
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "crossbeam-channel"
 version = "0.5.4"
@@ -917,6 +931,16 @@ dependencies = [
  "scopeguard",
 ]
 
+[[package]]
+name = "crossbeam-queue"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f25d8400f4a7a5778f0e4e52384a48cbd9b5c495d110786187fc750075277a2"
+dependencies = [
+ "cfg-if 1.0.0",
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "crossbeam-utils"
 version = "0.8.8"
@@ -2415,17 +2439,18 @@ name = "miri"
 version = "0.1.0"
 dependencies = [
  "colored",
- "compiletest_rs",
  "env_logger 0.9.0",
  "getrandom 0.2.0",
+ "lazy_static",
  "libc",
  "log",
  "measureme 9.1.2",
  "rand 0.8.5",
+ "regex",
  "rustc-workspace-hack",
- "rustc_version",
  "shell-escape",
  "smallvec",
+ "ui_test",
 ]
 
 [[package]]
@@ -2866,6 +2891,18 @@ dependencies = [
  "output_vt100",
 ]
 
+[[package]]
+name = "pretty_assertions"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c89f989ac94207d048d92db058e4f6ec7342b0971fc58d1271ca148b799b3563"
+dependencies = [
+ "ansi_term",
+ "ctor",
+ "diff",
+ "output_vt100",
+]
+
 [[package]]
 name = "pretty_env_logger"
 version = "0.4.0"
@@ -5462,6 +5499,18 @@ version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "56dee185309b50d1f11bfedef0fe6d036842e3fb77413abef29f8f8d1c5d4c1c"
 
+[[package]]
+name = "ui_test"
+version = "0.1.0"
+dependencies = [
+ "colored",
+ "crossbeam",
+ "lazy_static",
+ "pretty_assertions 1.2.1",
+ "regex",
+ "rustc_version",
+]
+
 [[package]]
 name = "unic-char-property"
 version = "0.9.0"

src/bootstrap/test.rs

@@ -572,12 +572,6 @@ impl Step for Miri {
                 return;
             }
 
-            // # Run `cargo test` with `-Zmir-opt-level=4`.
-            cargo.env("MIRIFLAGS", "-O -Zmir-opt-level=4");
-            if !try_run(builder, &mut cargo) {
-                return;
-            }
-
             // # Done!
             builder.save_toolstate("miri", ToolState::TestPass);
         } else {