Rollup merge of #147292 - Urgau:rustdoc-test-unstable_opts, r=fmease

Respect `-Z` unstable options in `rustdoc --test`

This PR makes rustdoc respect `-Z` unstable options when collecting doctests (`rustdoc --test`).

In the process I also realized that `--error-format` wasn't respected as well, making UI annotations impossible to write so I fixed that as well.

Best reviewed commit by commit.

Fixes https://github.com/rust-lang/rust/issues/147276
Fixes https://github.com/rust-lang/rust/issues/143930
r? fmease

23 files changed, 213 insertions, 134 deletions

diff --git a/src/librustdoc/doctest.rs b/src/librustdoc/doctest.rs
index 9499258f983..adaba733bf4 100644
--- a/src/librustdoc/doctest.rs
+++ b/src/librustdoc/doctest.rs
@@ -173,6 +173,8 @@ pub(crate) fn run(dcx: DiagCtxtHandle<'_>, input: Input, options: RustdocOptions
         target_triple: options.target.clone(),
         crate_name: options.crate_name.clone(),
         remap_path_prefix: options.remap_path_prefix.clone(),
+        unstable_opts: options.unstable_opts.clone(),
+        error_format: options.error_format.clone(),
         ..config::Options::default()
     };
 
diff --git a/tests/rustdoc-ui/doctest/check-attr-test.rs b/tests/rustdoc-ui/doctest/check-attr-test.rs
index 81281db624b..d69dae63860 100644
--- a/tests/rustdoc-ui/doctest/check-attr-test.rs
+++ b/tests/rustdoc-ui/doctest/check-attr-test.rs
@@ -2,6 +2,9 @@
 
 #![deny(rustdoc::invalid_codeblock_attributes)]
 
+//~vvv ERROR unknown attribute `compile-fail`
+//~| ERROR unknown attribute `compilefail`
+//~| ERROR unknown attribute `comPile_fail`
 /// foo
 ///
 /// ```compile-fail,compilefail,comPile_fail
@@ -9,6 +12,9 @@
 /// ```
 pub fn foo() {}
 
+//~vvv ERROR unknown attribute `should-panic`
+//~| ERROR unknown attribute `shouldpanic`
+//~| ERROR unknown attribute `shOuld_panic`
 /// bar
 ///
 /// ```should-panic,shouldpanic,shOuld_panic
@@ -16,6 +22,9 @@ pub fn foo() {}
 /// ```
 pub fn bar() {}
 
+//~vvv ERROR unknown attribute `no-run`
+//~| ERROR unknown attribute `norun`
+//~| ERROR unknown attribute `nO_run`
 /// foobar
 ///
 /// ```no-run,norun,nO_run
@@ -23,6 +32,9 @@ pub fn bar() {}
 /// ```
 pub fn foobar() {}
 
+//~vvv ERROR unknown attribute `test-harness`
+//~| ERROR unknown attribute `testharness`
+//~| ERROR unknown attribute `tesT_harness`
 /// b
 ///
 /// ```test-harness,testharness,tesT_harness
diff --git a/tests/rustdoc-ui/doctest/check-attr-test.stderr b/tests/rustdoc-ui/doctest/check-attr-test.stderr
index 257136d1633..1fc7ab592de 100644
--- a/tests/rustdoc-ui/doctest/check-attr-test.stderr
+++ b/tests/rustdoc-ui/doctest/check-attr-test.stderr
@@ -1,159 +1,159 @@
 error: unknown attribute `compile-fail`
- --> $DIR/check-attr-test.rs:5:1
-  |
-5 | / /// foo
-6 | | ///
-7 | | /// ```compile-fail,compilefail,comPile_fail
-8 | | /// boo
-9 | | /// ```
-  | |_______^
-  |
-  = help: use `compile_fail` to invert the results of this test, so that it passes if it cannot be compiled and fails if it can
-  = help: this code block may be skipped during testing, because unknown attributes are treated as markers for code samples written in other programming languages, unless it is also explicitly marked as `rust`
+  --> $DIR/check-attr-test.rs:8:1
+   |
+LL | / /// foo
+LL | | ///
+LL | | /// ```compile-fail,compilefail,comPile_fail
+LL | | /// boo
+LL | | /// ```
+   | |_______^
+   |
+   = help: use `compile_fail` to invert the results of this test, so that it passes if it cannot be compiled and fails if it can
+   = help: this code block may be skipped during testing, because unknown attributes are treated as markers for code samples written in other programming languages, unless it is also explicitly marked as `rust`
 note: the lint level is defined here
- --> $DIR/check-attr-test.rs:3:9
-  |
-3 | #![deny(rustdoc::invalid_codeblock_attributes)]
-  |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  --> $DIR/check-attr-test.rs:3:9
+   |
+LL | #![deny(rustdoc::invalid_codeblock_attributes)]
+   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: unknown attribute `compilefail`
- --> $DIR/check-attr-test.rs:5:1
-  |
-5 | / /// foo
-6 | | ///
-7 | | /// ```compile-fail,compilefail,comPile_fail
-8 | | /// boo
-9 | | /// ```
-  | |_______^
-  |
-  = help: use `compile_fail` to invert the results of this test, so that it passes if it cannot be compiled and fails if it can
-  = help: this code block may be skipped during testing, because unknown attributes are treated as markers for code samples written in other programming languages, unless it is also explicitly marked as `rust`
+  --> $DIR/check-attr-test.rs:8:1
+   |
+LL | / /// foo
+LL | | ///
+LL | | /// ```compile-fail,compilefail,comPile_fail
+LL | | /// boo
+LL | | /// ```
+   | |_______^
+   |
+   = help: use `compile_fail` to invert the results of this test, so that it passes if it cannot be compiled and fails if it can
+   = help: this code block may be skipped during testing, because unknown attributes are treated as markers for code samples written in other programming languages, unless it is also explicitly marked as `rust`
 
 error: unknown attribute `comPile_fail`
- --> $DIR/check-attr-test.rs:5:1
-  |
-5 | / /// foo
-6 | | ///
-7 | | /// ```compile-fail,compilefail,comPile_fail
-8 | | /// boo
-9 | | /// ```
-  | |_______^
-  |
-  = help: use `compile_fail` to invert the results of this test, so that it passes if it cannot be compiled and fails if it can
-  = help: this code block may be skipped during testing, because unknown attributes are treated as markers for code samples written in other programming languages, unless it is also explicitly marked as `rust`
+  --> $DIR/check-attr-test.rs:8:1
+   |
+LL | / /// foo
+LL | | ///
+LL | | /// ```compile-fail,compilefail,comPile_fail
+LL | | /// boo
+LL | | /// ```
+   | |_______^
+   |
+   = help: use `compile_fail` to invert the results of this test, so that it passes if it cannot be compiled and fails if it can
+   = help: this code block may be skipped during testing, because unknown attributes are treated as markers for code samples written in other programming languages, unless it is also explicitly marked as `rust`
 
 error: unknown attribute `should-panic`
-  --> $DIR/check-attr-test.rs:12:1
+  --> $DIR/check-attr-test.rs:18:1
    |
-12 | / /// bar
-13 | | ///
-14 | | /// ```should-panic,shouldpanic,shOuld_panic
-15 | | /// boo
-16 | | /// ```
+LL | / /// bar
+LL | | ///
+LL | | /// ```should-panic,shouldpanic,shOuld_panic
+LL | | /// boo
+LL | | /// ```
    | |_______^
    |
    = help: use `should_panic` to invert the results of this test, so that if passes if it panics and fails if it does not
    = help: this code block may be skipped during testing, because unknown attributes are treated as markers for code samples written in other programming languages, unless it is also explicitly marked as `rust`
 
 error: unknown attribute `shouldpanic`
-  --> $DIR/check-attr-test.rs:12:1
+  --> $DIR/check-attr-test.rs:18:1
    |
-12 | / /// bar
-13 | | ///
-14 | | /// ```should-panic,shouldpanic,shOuld_panic
-15 | | /// boo
-16 | | /// ```
+LL | / /// bar
+LL | | ///
+LL | | /// ```should-panic,shouldpanic,shOuld_panic
+LL | | /// boo
+LL | | /// ```
    | |_______^
    |
    = help: use `should_panic` to invert the results of this test, so that if passes if it panics and fails if it does not
    = help: this code block may be skipped during testing, because unknown attributes are treated as markers for code samples written in other programming languages, unless it is also explicitly marked as `rust`
 
 error: unknown attribute `shOuld_panic`
-  --> $DIR/check-attr-test.rs:12:1
+  --> $DIR/check-attr-test.rs:18:1
    |
-12 | / /// bar
-13 | | ///
-14 | | /// ```should-panic,shouldpanic,shOuld_panic
-15 | | /// boo
-16 | | /// ```
+LL | / /// bar
+LL | | ///
+LL | | /// ```should-panic,shouldpanic,shOuld_panic
+LL | | /// boo
+LL | | /// ```
    | |_______^
    |
    = help: use `should_panic` to invert the results of this test, so that if passes if it panics and fails if it does not
    = help: this code block may be skipped during testing, because unknown attributes are treated as markers for code samples written in other programming languages, unless it is also explicitly marked as `rust`
 
 error: unknown attribute `no-run`
-  --> $DIR/check-attr-test.rs:19:1
+  --> $DIR/check-attr-test.rs:28:1
    |
-19 | / /// foobar
-20 | | ///
-21 | | /// ```no-run,norun,nO_run
-22 | | /// boo
-23 | | /// ```
+LL | / /// foobar
+LL | | ///
+LL | | /// ```no-run,norun,nO_run
+LL | | /// boo
+LL | | /// ```
    | |_______^
    |
    = help: use `no_run` to compile, but not run, the code sample during testing
    = help: this code block may be skipped during testing, because unknown attributes are treated as markers for code samples written in other programming languages, unless it is also explicitly marked as `rust`
 
 error: unknown attribute `norun`
-  --> $DIR/check-attr-test.rs:19:1
+  --> $DIR/check-attr-test.rs:28:1
    |
-19 | / /// foobar
-20 | | ///
-21 | | /// ```no-run,norun,nO_run
-22 | | /// boo
-23 | | /// ```
+LL | / /// foobar
+LL | | ///
+LL | | /// ```no-run,norun,nO_run
+LL | | /// boo
+LL | | /// ```
    | |_______^
    |
    = help: use `no_run` to compile, but not run, the code sample during testing
    = help: this code block may be skipped during testing, because unknown attributes are treated as markers for code samples written in other programming languages, unless it is also explicitly marked as `rust`
 
 error: unknown attribute `nO_run`
-  --> $DIR/check-attr-test.rs:19:1
+  --> $DIR/check-attr-test.rs:28:1
    |
-19 | / /// foobar
-20 | | ///
-21 | | /// ```no-run,norun,nO_run
-22 | | /// boo
-23 | | /// ```
+LL | / /// foobar
+LL | | ///
+LL | | /// ```no-run,norun,nO_run
+LL | | /// boo
+LL | | /// ```
    | |_______^
    |
    = help: use `no_run` to compile, but not run, the code sample during testing
    = help: this code block may be skipped during testing, because unknown attributes are treated as markers for code samples written in other programming languages, unless it is also explicitly marked as `rust`
 
 error: unknown attribute `test-harness`
-  --> $DIR/check-attr-test.rs:26:1
+  --> $DIR/check-attr-test.rs:38:1
    |
-26 | / /// b
-27 | | ///
-28 | | /// ```test-harness,testharness,tesT_harness
-29 | | /// boo
-30 | | /// ```
+LL | / /// b
+LL | | ///
+LL | | /// ```test-harness,testharness,tesT_harness
+LL | | /// boo
+LL | | /// ```
    | |_______^
    |
    = help: use `test_harness` to run functions marked `#[test]` instead of a potentially-implicit `main` function
    = help: this code block may be skipped during testing, because unknown attributes are treated as markers for code samples written in other programming languages, unless it is also explicitly marked as `rust`
 
 error: unknown attribute `testharness`
-  --> $DIR/check-attr-test.rs:26:1
+  --> $DIR/check-attr-test.rs:38:1
    |
-26 | / /// b
-27 | | ///
-28 | | /// ```test-harness,testharness,tesT_harness
-29 | | /// boo
-30 | | /// ```
+LL | / /// b
+LL | | ///
+LL | | /// ```test-harness,testharness,tesT_harness
+LL | | /// boo
+LL | | /// ```
    | |_______^
    |
    = help: use `test_harness` to run functions marked `#[test]` instead of a potentially-implicit `main` function
    = help: this code block may be skipped during testing, because unknown attributes are treated as markers for code samples written in other programming languages, unless it is also explicitly marked as `rust`
 
 error: unknown attribute `tesT_harness`
-  --> $DIR/check-attr-test.rs:26:1
+  --> $DIR/check-attr-test.rs:38:1
    |
-26 | / /// b
-27 | | ///
-28 | | /// ```test-harness,testharness,tesT_harness
-29 | | /// boo
-30 | | /// ```
+LL | / /// b
+LL | | ///
+LL | | /// ```test-harness,testharness,tesT_harness
+LL | | /// boo
+LL | | /// ```
    | |_______^
    |
    = help: use `test_harness` to run functions marked `#[test]` instead of a potentially-implicit `main` function
diff --git a/tests/rustdoc-ui/doctest/failed-doctest-extra-semicolon-on-item.rs b/tests/rustdoc-ui/doctest/failed-doctest-extra-semicolon-on-item.rs
index ca5dd787467..05e4a348d11 100644
--- a/tests/rustdoc-ui/doctest/failed-doctest-extra-semicolon-on-item.rs
+++ b/tests/rustdoc-ui/doctest/failed-doctest-extra-semicolon-on-item.rs
@@ -9,6 +9,7 @@
 /// <https://github.com/rust-lang/rust/issues/91014>
 ///
 /// ```rust
+//~^ WARN the `main` function of this doctest won't be run
 /// struct S {};
 ///
 /// fn main() {
diff --git a/tests/rustdoc-ui/doctest/failed-doctest-extra-semicolon-on-item.stderr b/tests/rustdoc-ui/doctest/failed-doctest-extra-semicolon-on-item.stderr
index 113fb7ccb60..cffda43ba1c 100644
--- a/tests/rustdoc-ui/doctest/failed-doctest-extra-semicolon-on-item.stderr
+++ b/tests/rustdoc-ui/doctest/failed-doctest-extra-semicolon-on-item.stderr
@@ -1,7 +1,7 @@
 warning: the `main` function of this doctest won't be run as it contains expressions at the top level, meaning that the whole doctest code will be wrapped in a function
   --> $DIR/failed-doctest-extra-semicolon-on-item.rs:11:1
    |
-11 | /// ```rust
+LL | /// ```rust
    | ^^^^^^^^^^^
 
 warning: 1 warning emitted
diff --git a/tests/rustdoc-ui/doctest/main-alongside-stmts.rs b/tests/rustdoc-ui/doctest/main-alongside-stmts.rs
index 5965f928cdd..595de133932 100644
--- a/tests/rustdoc-ui/doctest/main-alongside-stmts.rs
+++ b/tests/rustdoc-ui/doctest/main-alongside-stmts.rs
@@ -14,6 +14,7 @@
 //@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
 //@ check-pass
 
+//~v WARN the `main` function of this doctest won't be run
 //! ```
 //! # if cfg!(miri) { return; }
 //! use std::ops::Deref;
@@ -22,6 +23,7 @@
 //!     assert!(false);
 //! }
 //! ```
+//~v WARN the `main` function of this doctest won't be run
 //!
 //! ```
 //! let x = 2;
diff --git a/tests/rustdoc-ui/doctest/main-alongside-stmts.stderr b/tests/rustdoc-ui/doctest/main-alongside-stmts.stderr
index d90a289ca69..b7a5421f8f7 100644
--- a/tests/rustdoc-ui/doctest/main-alongside-stmts.stderr
+++ b/tests/rustdoc-ui/doctest/main-alongside-stmts.stderr
@@ -1,14 +1,14 @@
 warning: the `main` function of this doctest won't be run as it contains expressions at the top level, meaning that the whole doctest code will be wrapped in a function
-  --> $DIR/main-alongside-stmts.rs:17:1
+  --> $DIR/main-alongside-stmts.rs:18:1
    |
-17 | //! ```
+LL | //! ```
    | ^^^^^^^
 
 warning: the `main` function of this doctest won't be run as it contains expressions at the top level, meaning that the whole doctest code will be wrapped in a function
-  --> $DIR/main-alongside-stmts.rs:26:1
+  --> $DIR/main-alongside-stmts.rs:27:1
    |
-26 | //! ```
-   | ^^^^^^^
+LL | //!
+   | ^^^
 
 warning: 2 warnings emitted
 
diff --git a/tests/rustdoc-ui/doctest/main-alongside-stmts.stdout b/tests/rustdoc-ui/doctest/main-alongside-stmts.stdout
index 9b9a3fe8a68..bebaeb49c5a 100644
--- a/tests/rustdoc-ui/doctest/main-alongside-stmts.stdout
+++ b/tests/rustdoc-ui/doctest/main-alongside-stmts.stdout
@@ -1,7 +1,7 @@
 
 running 2 tests
-test $DIR/main-alongside-stmts.rs - (line 17) ... ok
-test $DIR/main-alongside-stmts.rs - (line 26) ... ok
+test $DIR/main-alongside-stmts.rs - (line 18) ... ok
+test $DIR/main-alongside-stmts.rs - (line 27) ... ok
 
 test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
diff --git a/tests/rustdoc-ui/doctest/standalone-warning-2024.rs b/tests/rustdoc-ui/doctest/standalone-warning-2024.rs
index c53a8b48749..3bb0083d849 100644
--- a/tests/rustdoc-ui/doctest/standalone-warning-2024.rs
+++ b/tests/rustdoc-ui/doctest/standalone-warning-2024.rs
@@ -9,6 +9,8 @@
 #![deny(warnings)]
 
 //! ```standalone
+//~^ ERROR unknown attribute `standalone`
+//~| ERROR unknown attribute `standalone-crate`
 //! bla
 //! ```
 //!
diff --git a/tests/rustdoc-ui/doctest/standalone-warning-2024.stderr b/tests/rustdoc-ui/doctest/standalone-warning-2024.stderr
index ce65557c2c4..db0d53a204c 100644
--- a/tests/rustdoc-ui/doctest/standalone-warning-2024.stderr
+++ b/tests/rustdoc-ui/doctest/standalone-warning-2024.stderr
@@ -1,13 +1,13 @@
 error: unknown attribute `standalone`
   --> $DIR/standalone-warning-2024.rs:11:1
    |
-11 | / //! ```standalone
-12 | | //! bla
-13 | | //! ```
-14 | | //!
-15 | | //! ```standalone-crate
-16 | | //! bla
-17 | | //! ```
+LL | / //! ```standalone
+LL | |
+LL | |
+LL | | //! bla
+...  |
+LL | | //! bla
+LL | | //! ```
    | |_______^
    |
    = help: use `standalone_crate` to compile this code block separately
@@ -15,20 +15,20 @@ error: unknown attribute `standalone`
 note: the lint level is defined here
   --> $DIR/standalone-warning-2024.rs:9:9
    |
- 9 | #![deny(warnings)]
+LL | #![deny(warnings)]
    |         ^^^^^^^^
    = note: `#[deny(rustdoc::invalid_codeblock_attributes)]` implied by `#[deny(warnings)]`
 
 error: unknown attribute `standalone-crate`
   --> $DIR/standalone-warning-2024.rs:11:1
    |
-11 | / //! ```standalone
-12 | | //! bla
-13 | | //! ```
-14 | | //!
-15 | | //! ```standalone-crate
-16 | | //! bla
-17 | | //! ```
+LL | / //! ```standalone
+LL | |
+LL | |
+LL | | //! bla
+...  |
+LL | | //! bla
+LL | | //! ```
    | |_______^
    |
    = help: use `standalone_crate` to compile this code block separately
diff --git a/tests/rustdoc-ui/doctest/test-compile-fail1.rs b/tests/rustdoc-ui/doctest/test-compile-fail1.rs
index 278f01f4c83..c692c4c61bc 100644
--- a/tests/rustdoc-ui/doctest/test-compile-fail1.rs
+++ b/tests/rustdoc-ui/doctest/test-compile-fail1.rs
@@ -6,3 +6,4 @@
 pub fn f() {}
 
 pub fn f() {}
+//~^ ERROR the name `f` is defined multiple times
diff --git a/tests/rustdoc-ui/doctest/test-compile-fail1.stderr b/tests/rustdoc-ui/doctest/test-compile-fail1.stderr
index 02f4d8d754f..aa5cc2e14d6 100644
--- a/tests/rustdoc-ui/doctest/test-compile-fail1.stderr
+++ b/tests/rustdoc-ui/doctest/test-compile-fail1.stderr
@@ -1,13 +1,13 @@
 error[E0428]: the name `f` is defined multiple times
- --> $DIR/test-compile-fail1.rs:8:1
-  |
-6 | pub fn f() {}
-  | ---------- previous definition of the value `f` here
-7 |
-8 | pub fn f() {}
-  | ^^^^^^^^^^ `f` redefined here
-  |
-  = note: `f` must be defined only once in the value namespace of this module
+  --> $DIR/test-compile-fail1.rs:8:1
+   |
+LL | pub fn f() {}
+   | ---------- previous definition of the value `f` here
+LL |
+LL | pub fn f() {}
+   | ^^^^^^^^^^ `f` redefined here
+   |
+   = note: `f` must be defined only once in the value namespace of this module
 
 error: aborting due to 1 previous error
 
diff --git a/tests/rustdoc-ui/doctest/test-compile-fail2.rs b/tests/rustdoc-ui/doctest/test-compile-fail2.rs
index 7432cc9f826..8239440262d 100644
--- a/tests/rustdoc-ui/doctest/test-compile-fail2.rs
+++ b/tests/rustdoc-ui/doctest/test-compile-fail2.rs
@@ -1,3 +1,4 @@
 //@ compile-flags:--test
 
 fail
+//~^ ERROR
diff --git a/tests/rustdoc-ui/doctest/test-compile-fail2.stderr b/tests/rustdoc-ui/doctest/test-compile-fail2.stderr
index f0ad40eb6ca..9f50c857275 100644
--- a/tests/rustdoc-ui/doctest/test-compile-fail2.stderr
+++ b/tests/rustdoc-ui/doctest/test-compile-fail2.stderr
@@ -1,8 +1,8 @@
 error: expected one of `!` or `::`, found `<eof>`
- --> $DIR/test-compile-fail2.rs:3:1
-  |
-3 | fail
-  | ^^^^ expected one of `!` or `::`
+  --> $DIR/test-compile-fail2.rs:3:1
+   |
+LL | fail
+   | ^^^^ expected one of `!` or `::`
 
 error: aborting due to 1 previous error
 
diff --git a/tests/rustdoc-ui/doctest/test-compile-fail3.rs b/tests/rustdoc-ui/doctest/test-compile-fail3.rs
index a2486d9dc6f..272ba95396c 100644
--- a/tests/rustdoc-ui/doctest/test-compile-fail3.rs
+++ b/tests/rustdoc-ui/doctest/test-compile-fail3.rs
@@ -1,3 +1,4 @@
 //@ compile-flags:--test
 
 "fail
+//~^ ERROR
diff --git a/tests/rustdoc-ui/doctest/test-compile-fail3.stderr b/tests/rustdoc-ui/doctest/test-compile-fail3.stderr
index 09d78b2f346..8061097e73a 100644
--- a/tests/rustdoc-ui/doctest/test-compile-fail3.stderr
+++ b/tests/rustdoc-ui/doctest/test-compile-fail3.stderr
@@ -1,8 +1,9 @@
 error[E0765]: unterminated double quote string
- --> $DIR/test-compile-fail3.rs:3:1
-  |
-3 | "fail
-  | ^^^^^
+  --> $DIR/test-compile-fail3.rs:3:1
+   |
+LL | / "fail
+LL | |
+   | |___________^
 
 error: aborting due to 1 previous error
 
diff --git a/tests/rustdoc-ui/doctest/unstable-opts-143930.rs b/tests/rustdoc-ui/doctest/unstable-opts-143930.rs
new file mode 100644
index 00000000000..30c47f5b7e9
--- /dev/null
+++ b/tests/rustdoc-ui/doctest/unstable-opts-143930.rs
@@ -0,0 +1,14 @@
+// This test verifies that unstable options like `-Zcrate-attr` are respected when `--test` is
+// passed.
+//
+// <https://github.com/rust-lang/rust/issues/143930>
+//
+// NOTE: If any of these command line arguments or features get stabilized, please replace with
+// another unstable one.
+
+//@ check-pass
+//@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
+//@ compile-flags: --test -Zcrate-attr=feature(register_tool) -Zcrate-attr=register_tool(rapx)
+
+#[rapx::tag]
+fn f() {}
diff --git a/tests/rustdoc-ui/doctest/unstable-opts-143930.stdout b/tests/rustdoc-ui/doctest/unstable-opts-143930.stdout
new file mode 100644
index 00000000000..7326c0a25a0
--- /dev/null
+++ b/tests/rustdoc-ui/doctest/unstable-opts-143930.stdout
@@ -0,0 +1,5 @@
+
+running 0 tests
+
+test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
+
diff --git a/tests/rustdoc-ui/doctest/unstable-opts-147276.crate_attr.stdout b/tests/rustdoc-ui/doctest/unstable-opts-147276.crate_attr.stdout
new file mode 100644
index 00000000000..7326c0a25a0
--- /dev/null
+++ b/tests/rustdoc-ui/doctest/unstable-opts-147276.crate_attr.stdout
@@ -0,0 +1,5 @@
+
+running 0 tests
+
+test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
+
diff --git a/tests/rustdoc-ui/doctest/unstable-opts-147276.normal.stderr b/tests/rustdoc-ui/doctest/unstable-opts-147276.normal.stderr
new file mode 100644
index 00000000000..eebf4f307f1
--- /dev/null
+++ b/tests/rustdoc-ui/doctest/unstable-opts-147276.normal.stderr
@@ -0,0 +1,13 @@
+error[E0658]: `#[used(linker)]` is currently unstable
+  --> $DIR/unstable-opts-147276.rs:15:1
+   |
+LL | #[used(linker)]
+   | ^^^^^^^^^^^^^^^
+   |
+   = note: see issue #93798 <https://github.com/rust-lang/rust/issues/93798> for more information
+   = help: add `#![feature(used_with_arg)]` to the crate attributes to enable
+   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0658`.
diff --git a/tests/rustdoc-ui/doctest/unstable-opts-147276.rs b/tests/rustdoc-ui/doctest/unstable-opts-147276.rs
new file mode 100644
index 00000000000..64cafcaaff4
--- /dev/null
+++ b/tests/rustdoc-ui/doctest/unstable-opts-147276.rs
@@ -0,0 +1,17 @@
+// This test verifies that unstable options like `-Zcrate-attr` are respected when `--test` is
+// passed.
+//
+// <https://github.com/rust-lang/rust/issues/147276>
+//
+// NOTE: If any of these command line arguments or features get stabilized, please replace with
+// another unstable one.
+
+//@ revisions: normal crate_attr
+//@ compile-flags: --test
+//@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
+//@[crate_attr] check-pass
+//@[crate_attr] compile-flags: -Zcrate-attr=feature(used_with_arg)
+
+#[used(linker)]
+//[normal]~^ ERROR `#[used(linker)]` is currently unstable
+static REPRO: isize = 1;
diff --git a/tests/rustdoc-ui/doctest/warn-main-not-called.rs b/tests/rustdoc-ui/doctest/warn-main-not-called.rs
index 25d92e9cee9..ec762486d5d 100644
--- a/tests/rustdoc-ui/doctest/warn-main-not-called.rs
+++ b/tests/rustdoc-ui/doctest/warn-main-not-called.rs
@@ -8,6 +8,7 @@
 // won't be called.
 
 //! ```
+//~^ WARN the `main` function of this doctest won't be run
 //! macro_rules! bla {
 //!     ($($x:tt)*) => {}
 //! }
@@ -17,6 +18,7 @@
 //! ```
 //!
 //! ```
+//~^^ WARN the `main` function of this doctest won't be run
 //! let x = 12;
 //! fn main() {}
 //! ```
diff --git a/tests/rustdoc-ui/doctest/warn-main-not-called.stderr b/tests/rustdoc-ui/doctest/warn-main-not-called.stderr
index 3a079f47555..5feca6f9175 100644
--- a/tests/rustdoc-ui/doctest/warn-main-not-called.stderr
+++ b/tests/rustdoc-ui/doctest/warn-main-not-called.stderr
@@ -1,14 +1,14 @@
 warning: the `main` function of this doctest won't be run as it contains expressions at the top level, meaning that the whole doctest code will be wrapped in a function
   --> $DIR/warn-main-not-called.rs:10:1
    |
-10 | //! ```
+LL | //! ```
    | ^^^^^^^
 
 warning: the `main` function of this doctest won't be run as it contains expressions at the top level, meaning that the whole doctest code will be wrapped in a function
   --> $DIR/warn-main-not-called.rs:19:1
    |
-19 | //! ```
-   | ^^^^^^^
+LL | //!
+   | ^^^
 
 warning: 2 warnings emitted