rust-lang · jieyouxu · Jun 23, 2025 · Jun 24, 2025 · Jun 24, 2025 · Jun 24, 2025
diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs
@@ -1639,6 +1639,8 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the
 
         let mut cmd = builder.tool_cmd(Tool::Compiletest);
 
+        cmd.arg("--rust-version").arg(builder.rust_version());
+
         if suite == "mir-opt" {
             builder.ensure(compile::Std::new(compiler, target).is_for_mir_opt_tests(true));
         } else {

diff --git a/src/doc/rustc-dev-guide/src/tests/ui.md b/src/doc/rustc-dev-guide/src/tests/ui.md
@@ -107,6 +107,8 @@ platforms, mainly about filenames.
 
 Compiletest makes the following replacements on the compiler output:
 
+- The rust version string (e.g. `1.89.0-beta.1 (88b80702e 2025-06-23)`) is
+  replaced with `$RUST_VERSION`.
 - The directory where the test is defined is replaced with `$DIR`. Example:
   `/path/to/rust/tests/ui/error-codes`
 - The directory to the standard library source is replaced with `$SRC_DIR`.

diff --git a/src/tools/compiletest/src/common.rs b/src/tools/compiletest/src/common.rs
@@ -181,6 +181,9 @@ pub struct Config {
     /// May run a few more tests before stopping, due to threading.
     pub fail_fast: bool,
 
+    /// E.g. `1.89.0-beta.1 (88b80702e 2025-06-23)`, used for UI normalizations.
+    pub rust_version: String,
+
     /// The library paths required for running the compiler.
     pub compile_lib_path: Utf8PathBuf,
 

diff --git a/src/tools/compiletest/src/header/tests.rs b/src/tools/compiletest/src/header/tests.rs
@@ -150,6 +150,7 @@ impl ConfigBuilder {
             "--mode",
             self.mode.as_deref().unwrap_or("ui"),
             "--suite=ui",
+            "--rust-version=DUMMY_VERSION_STRING",
             "--compile-lib-path=",
             "--run-lib-path=",
             "--python=",

diff --git a/src/tools/compiletest/src/lib.rs b/src/tools/compiletest/src/lib.rs
diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs
@@ -2485,6 +2485,10 @@ impl<'test> TestCx<'test> {
                 .into_owned();
         }
 
+        // Normalize out rustc version info strings that may be present in the output (usually for
+        // deprecated since diagnostics).
+        normalized = normalized.replace(&self.config.rust_version, "$RUST_VERSION");
+
         // Custom normalization rules
         for rule in custom_rules {
             let re = Regex::new(&rule.0).expect("bad regex in custom normalization rule");

diff --git a/tests/ui/deprecation/deprecated_no_stack_check.rs b/tests/ui/deprecation/deprecated_no_stack_check.rs
@@ -1,5 +1,3 @@
-//@ normalize-stderr: "you are using [0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9]+)?( \([^)]*\))?" -> "you are using $$RUSTC_VERSION"
-
 #![deny(warnings)]
 #![feature(no_stack_check)]
 //~^ ERROR: feature has been removed [E0557]

diff --git a/tests/ui/deprecation/deprecated_no_stack_check.stderr b/tests/ui/deprecation/deprecated_no_stack_check.stderr
@@ -1,10 +1,10 @@
 error[E0557]: feature has been removed
-  --> $DIR/deprecated_no_stack_check.rs:4:12
+  --> $DIR/deprecated_no_stack_check.rs:2:12
    |
 LL | #![feature(no_stack_check)]
    |            ^^^^^^^^^^^^^^ feature has been removed
    |
-   = note: removed in 1.0.0 (you are using $RUSTC_VERSION); see <https://github.com/rust-lang/rust/pull/40110> for more information
+   = note: removed in 1.0.0 (you are using $RUST_VERSION); see <https://github.com/rust-lang/rust/pull/40110> for more information
 
 error: aborting due to 1 previous error
 

diff --git a/tests/ui/feature-gates/feature-gate-coverage-attribute.rs b/tests/ui/feature-gates/feature-gate-coverage-attribute.rs
@@ -1,5 +1,3 @@
-//@ normalize-stderr: "you are using [0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9]+)?( \([^)]*\))?" -> "you are using $$RUSTC_VERSION"
-
 #![crate_type = "lib"]
 #![feature(no_coverage)] //~ ERROR feature has been removed [E0557]
 

diff --git a/tests/ui/feature-gates/feature-gate-coverage-attribute.stderr b/tests/ui/feature-gates/feature-gate-coverage-attribute.stderr
@@ -1,14 +1,14 @@
 error[E0557]: feature has been removed
-  --> $DIR/feature-gate-coverage-attribute.rs:4:12
+  --> $DIR/feature-gate-coverage-attribute.rs:2:12
    |
 LL | #![feature(no_coverage)]
    |            ^^^^^^^^^^^ feature has been removed
    |
-   = note: removed in 1.74.0 (you are using $RUSTC_VERSION); see <https://github.com/rust-lang/rust/pull/114656> for more information
+   = note: removed in 1.74.0 (you are using $RUST_VERSION); see <https://github.com/rust-lang/rust/pull/114656> for more information
    = note: renamed to `coverage_attribute`
 
 error[E0658]: the `#[coverage]` attribute is an experimental feature
-  --> $DIR/feature-gate-coverage-attribute.rs:12:1
+  --> $DIR/feature-gate-coverage-attribute.rs:10:1
    |
 LL | #[coverage(off)]
    | ^^^^^^^^^^^^^^^^

diff --git a/tests/ui/feature-gates/gated-bad-feature.rs b/tests/ui/feature-gates/gated-bad-feature.rs
@@ -1,4 +1,3 @@
-//@ normalize-stderr: "you are using [0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9]+)?( \([^)]*\))?" -> "you are using $$RUSTC_VERSION"
 #![feature(foo_bar_baz, foo(bar), foo = "baz", foo)]
 //~^ ERROR malformed `feature`
 //~| ERROR malformed `feature`

diff --git a/tests/ui/feature-gates/gated-bad-feature.stderr b/tests/ui/feature-gates/gated-bad-feature.stderr
@@ -1,43 +1,43 @@
 error[E0556]: malformed `feature` attribute input
-  --> $DIR/gated-bad-feature.rs:2:25
+  --> $DIR/gated-bad-feature.rs:1:25
    |
 LL | #![feature(foo_bar_baz, foo(bar), foo = "baz", foo)]
    |                         ^^^^^^^^ help: expected just one word: `foo`
 
 error[E0556]: malformed `feature` attribute input
-  --> $DIR/gated-bad-feature.rs:2:35
+  --> $DIR/gated-bad-feature.rs:1:35
    |
 LL | #![feature(foo_bar_baz, foo(bar), foo = "baz", foo)]
    |                                   ^^^^^^^^^^^ help: expected just one word: `foo`
 
 error[E0557]: feature has been removed
-  --> $DIR/gated-bad-feature.rs:9:12
+  --> $DIR/gated-bad-feature.rs:8:12
    |
 LL | #![feature(test_removed_feature)]
    |            ^^^^^^^^^^^^^^^^^^^^ feature has been removed
    |
-   = note: removed in 1.0.0 (you are using $RUSTC_VERSION)
+   = note: removed in 1.0.0 (you are using $RUST_VERSION)
 
 error: malformed `feature` attribute input
-  --> $DIR/gated-bad-feature.rs:7:1
+  --> $DIR/gated-bad-feature.rs:6:1
    |
 LL | #![feature]
    | ^^^^^^^^^^^ help: must be of the form: `#![feature(name1, name2, ...)]`
 
 error: malformed `feature` attribute input
-  --> $DIR/gated-bad-feature.rs:8:1
+  --> $DIR/gated-bad-feature.rs:7:1
    |
 LL | #![feature = "foo"]
    | ^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#![feature(name1, name2, ...)]`
 
 error[E0635]: unknown feature `foo_bar_baz`
-  --> $DIR/gated-bad-feature.rs:2:12
+  --> $DIR/gated-bad-feature.rs:1:12
    |
 LL | #![feature(foo_bar_baz, foo(bar), foo = "baz", foo)]
    |            ^^^^^^^^^^^
 
 error[E0635]: unknown feature `foo`
-  --> $DIR/gated-bad-feature.rs:2:48
+  --> $DIR/gated-bad-feature.rs:1:48
    |
 LL | #![feature(foo_bar_baz, foo(bar), foo = "baz", foo)]
    |                                                ^^^

diff --git a/tests/ui/feature-gates/removed-features-note-version-and-pr-issue-141619.rs b/tests/ui/feature-gates/removed-features-note-version-and-pr-issue-141619.rs
@@ -1,5 +1,3 @@
-//@ normalize-stderr: "you are using [0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9]+)?( \([^)]*\))?" -> "you are using $$RUSTC_VERSION"
-
 #![feature(external_doc)] //~ ERROR feature has been removed
 #![doc(include("README.md"))] //~ ERROR unknown `doc` attribute `include`
 

diff --git a/tests/ui/feature-gates/removed-features-note-version-and-pr-issue-141619.stderr b/tests/ui/feature-gates/removed-features-note-version-and-pr-issue-141619.stderr
@@ -1,14 +1,14 @@
 error[E0557]: feature has been removed
-  --> $DIR/removed-features-note-version-and-pr-issue-141619.rs:3:12
+  --> $DIR/removed-features-note-version-and-pr-issue-141619.rs:1:12
    |
 LL | #![feature(external_doc)]
    |            ^^^^^^^^^^^^ feature has been removed
    |
-   = note: removed in 1.54.0 (you are using $RUSTC_VERSION); see <https://github.com/rust-lang/rust/pull/85457> for more information
+   = note: removed in 1.54.0 (you are using $RUST_VERSION); see <https://github.com/rust-lang/rust/pull/85457> for more information
    = note: use #[doc = include_str!("filename")] instead, which handles macro invocations
 
 error: unknown `doc` attribute `include`
-  --> $DIR/removed-features-note-version-and-pr-issue-141619.rs:4:8
+  --> $DIR/removed-features-note-version-and-pr-issue-141619.rs:2:8
    |
 LL | #![doc(include("README.md"))]
    |        ^^^^^^^^^^^^^^^^^^^^

diff --git a/tests/ui/macros/macro-reexport-removed.rs b/tests/ui/macros/macro-reexport-removed.rs
@@ -1,5 +1,4 @@
 //@ aux-build:two_macros.rs
-//@ normalize-stderr: "you are using [0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9]+)?( \([^)]*\))?" -> "you are using $$RUSTC_VERSION"
 
 #![feature(macro_reexport)] //~ ERROR feature has been removed
 

diff --git a/tests/ui/macros/macro-reexport-removed.stderr b/tests/ui/macros/macro-reexport-removed.stderr
@@ -1,14 +1,14 @@
 error[E0557]: feature has been removed
-  --> $DIR/macro-reexport-removed.rs:4:12
+  --> $DIR/macro-reexport-removed.rs:3:12
    |
 LL | #![feature(macro_reexport)]
    |            ^^^^^^^^^^^^^^ feature has been removed
    |
-   = note: removed in 1.0.0 (you are using $RUSTC_VERSION); see <https://github.com/rust-lang/rust/pull/49982> for more information
+   = note: removed in 1.0.0 (you are using $RUST_VERSION); see <https://github.com/rust-lang/rust/pull/49982> for more information
    = note: subsumed by `pub use`
 
 error: cannot find attribute `macro_reexport` in this scope
-  --> $DIR/macro-reexport-removed.rs:6:3
+  --> $DIR/macro-reexport-removed.rs:5:3
    |
 LL | #[macro_reexport(macro_one)]
    |   ^^^^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `macro_export`

diff --git a/tests/ui/rustdoc/renamed-features-rustdoc_internals.rs b/tests/ui/rustdoc/renamed-features-rustdoc_internals.rs
@@ -1,5 +1,3 @@
-//@ normalize-stderr: "you are using [0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9]+)?( \([^)]*\))?" -> "you are using $$RUSTC_VERSION"
-
 #![feature(doc_keyword)] //~ ERROR
 #![feature(doc_primitive)] //~ ERROR
 #![crate_type = "lib"]

diff --git a/tests/ui/rustdoc/renamed-features-rustdoc_internals.stderr b/tests/ui/rustdoc/renamed-features-rustdoc_internals.stderr
@@ -1,19 +1,19 @@
 error[E0557]: feature has been removed
-  --> $DIR/renamed-features-rustdoc_internals.rs:3:12
+  --> $DIR/renamed-features-rustdoc_internals.rs:1:12
    |
 LL | #![feature(doc_keyword)]
    |            ^^^^^^^^^^^ feature has been removed
    |
-   = note: removed in 1.58.0 (you are using $RUSTC_VERSION); see <https://github.com/rust-lang/rust/pull/90420> for more information
+   = note: removed in 1.58.0 (you are using $RUST_VERSION); see <https://github.com/rust-lang/rust/pull/90420> for more information
    = note: merged into `#![feature(rustdoc_internals)]`
 
 error[E0557]: feature has been removed
-  --> $DIR/renamed-features-rustdoc_internals.rs:4:12
+  --> $DIR/renamed-features-rustdoc_internals.rs:2:12
    |
 LL | #![feature(doc_primitive)]
    |            ^^^^^^^^^^^^^ feature has been removed
    |
-   = note: removed in 1.58.0 (you are using $RUSTC_VERSION); see <https://github.com/rust-lang/rust/pull/90420> for more information
+   = note: removed in 1.58.0 (you are using $RUST_VERSION); see <https://github.com/rust-lang/rust/pull/90420> for more information
    = note: merged into `#![feature(rustdoc_internals)]`
 
 error: aborting due to 2 previous errors

diff --git a/tests/ui/traits/const-traits/const-trait-impl-parameter-mismatch.rs b/tests/ui/traits/const-traits/const-trait-impl-parameter-mismatch.rs
@@ -6,7 +6,6 @@
 // Regression test for issue #125877.
 
 //@ compile-flags: -Znext-solver
-//@ normalize-stderr: "you are using [0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9]+)?( \([^)]*\))?" -> "you are using $$RUSTC_VERSION"
 
 #![feature(const_trait_impl, effects)]
 //~^ ERROR feature has been removed

diff --git a/tests/ui/traits/const-traits/const-trait-impl-parameter-mismatch.stderr b/tests/ui/traits/const-traits/const-trait-impl-parameter-mismatch.stderr
@@ -1,14 +1,14 @@
 error[E0557]: feature has been removed
-  --> $DIR/const-trait-impl-parameter-mismatch.rs:11:30
+  --> $DIR/const-trait-impl-parameter-mismatch.rs:10:30
    |
 LL | #![feature(const_trait_impl, effects)]
    |                              ^^^^^^^ feature has been removed
    |
-   = note: removed in 1.84.0 (you are using $RUSTC_VERSION); see <https://github.com/rust-lang/rust/pull/132479> for more information
+   = note: removed in 1.84.0 (you are using $RUST_VERSION); see <https://github.com/rust-lang/rust/pull/132479> for more information
    = note: removed, redundant with `#![feature(const_trait_impl)]`
 
 error[E0049]: associated function `compute` has 0 type parameters but its trait declaration has 1 type parameter
-  --> $DIR/const-trait-impl-parameter-mismatch.rs:20:16
+  --> $DIR/const-trait-impl-parameter-mismatch.rs:19:16
    |
 LL |     fn compute<T: ~const Aux>() -> u32;
    |                - expected 1 type parameter

diff --git a/tests/ui/unsized-locals/yote.rs b/tests/ui/unsized-locals/yote.rs
@@ -1,4 +1,2 @@
-//@ normalize-stderr: "you are using [0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9]+)?( \([^)]*\))?" -> "you are using $$RUSTC_VERSION"
-
 #![feature(unsized_locals)] //~ERROR feature has been removed
 #![crate_type = "lib"]
diff --git a/tests/ui/unsized-locals/yote.stderr b/tests/ui/unsized-locals/yote.stderr
@@ -1,10 +1,10 @@
 error[E0557]: feature has been removed
-  --> $DIR/yote.rs:3:12
+  --> $DIR/yote.rs:1:12
    |
 LL | #![feature(unsized_locals)]
    |            ^^^^^^^^^^^^^^ feature has been removed
    |
-   = note: removed in CURRENT_RUSTC_VERSION (you are using $RUSTC_VERSION)
+   = note: removed in CURRENT_RUSTC_VERSION (you are using $RUST_VERSION)
    = note: removed due to implementation concerns; see https://github.com/rust-lang/rust/issues/111942
 
 error: aborting due to 1 previous error