Rollup of 21 pull requests #145192

Zalathar · 2025-08-10T02:43:19Z

Successful merges:

unstable-book: Add stubs for environment variables; document some of the important ones #141624 (unstable-book: Add stubs for environment variables; document some of the important ones)
Simplify polonius location-sensitive analysis #143093 (Simplify polonius location-sensitive analysis)
Constify remaining traits/impls for const_ops #143949 (Constify remaining traits/impls for const_ops)
Stabilize loongarch32 inline asm #144402 (Stabilize loongarch32 inline asm)
tests/ui/issues/: The Issues Strike Back [4/N] #144403 (tests/ui/issues/: The Issues Strike Back [4/N])
Start reporting future breakage for ILL_FORMED_ATTRIBUTE_INPUT in dependencies #144544 (Start reporting future breakage for ILL_FORMED_ATTRIBUTE_INPUT in dependencies)
Use new public libtest ERROR_EXIT_CODE constant in rustdoc #144739 (Use new public libtest ERROR_EXIT_CODE constant in rustdoc)
Improve error output when a command fails in bootstrap #145089 (Improve error output when a command fails in bootstrap)
[win][arm64ec] Partial fix for raw-dylib-link-ordinal on Arm64EC #145112 ([win][arm64ec] Partial fix for raw-dylib-link-ordinal on Arm64EC)
[win][arm64ec] Add /machine:arm64ec when linking LLVM as Arm64EC #145129 ([win][arm64ec] Add /machine:arm64ec when linking LLVM as Arm64EC)
improve "Documentation problem" issue template. #145130 (improve "Documentation problem" issue template.)
Stabilize duration_constructors_lite feature #145135 (Stabilize duration_constructors_lite feature)
some derive_more refactors #145145 (some derive_more refactors)
rename TraitRef::from_method to from_assoc #145147 (rename TraitRef::from_method to from_assoc)
Use eq_ignore_ascii_case to avoid heap alloc in detect_confuse_type #145152 (Use to_ascii_lowercase to avoid heap alloc in detect_confuse_type)
Port #[allow_internal_unsafe] to the new attribute system (attempt 2) #145155 (Port #[allow_internal_unsafe] to the new attribute system (attempt 2))
Override custom Cargo build-dir in bootstrap #145156 (Override custom Cargo build-dir in bootstrap)
Change days-threshold to 28 in [behind-upstream] #145160 (Change days-threshold to 28 in [behind-upstream])
{BTree,Hash}Map: add "Entry API" section heading #145162 ({BTree,Hash}Map: add "Entry API" section heading)
Enable limit_rdylib_exports on Solaris #145175 (Enable limit_rdylib_exports on Solaris)
Fix an unstable feature comment that wasn't a doc comment #145187 (Fix an unstable feature comment that wasn't a doc comment)

r? @ghost
@rustbot modify labels: rollup

This uses a very hacky regex that will probably miss some variables. But having some docs seems better than none at all. This uses a very hacky regex that will probably miss some variables. But having some docs seems better than none at all. In particular, this generates stubs for the following env vars: - COLORTERM - QNX_TARGET - RUST_BACKTRACE - RUSTC_BLESS - RUSTC_BOOTSTRAP - RUSTC_BREAK_ON_ICE - RUSTC_CTFE_BACKTRACE - RUSTC_FORCE_RUSTC_VERSION - RUSTC_GRAPHVIZ_FONT - RUSTC_ICE - RUSTC_LOG - RUSTC_OVERRIDE_VERSION_STRING - RUSTC_RETRY_LINKER_ON_SEGFAULT - RUSTC_TRANSLATION_NO_DEBUG_ASSERT - RUST_DEP_GRAPH_FILTER - RUST_DEP_GRAPH - RUST_FORBID_DEP_GRAPH_EDGE - RUST_MIN_STACK - RUST_TARGET_PATH - SDKROOT - TERM - UNSTABLE_RUSTDOC_TEST_LINE - UNSTABLE_RUSTDOC_TEST_PATH [rendered](![screenshot of unstable-book running locally, with 14 environment variables shown in the sidebar](https://github.com/user-attachments/assets/8238d094-fb7a-456f-ad43-7c07aa2c44dd))

…ependencies Signed-off-by: Jonathan Brouwer <jonathantbrouwer@gmail.com>

…ibutes explicitly

The suboptimal error only appears with NLLs due to liveness differences where polonius cannot have as many boring locals. Sometimes this causes NLLs to emit a duplicate error as well.

Remove incomplete handling of kills during traversal for loan liveness to get to a simpler and actionable prototype. This handles the cases, on sufficiently simple examples, that were deferred from NLLs (NLL problem case 3, lending iterators), and is still a good step to put in people's hands without needing to wait for another full implementation. This is a practical cut in scope, but it also shows where are the areas of improvement, that we will explore in the future.

These are just some sanity checks to ensure NLLs, the polonius alpha analysis, and the datalog implementation behave the same on these common examples.

This test showcases the same imprecision as NLLs, unlike the datalog implementation, when using reachability as a liveness approximation.

This is an example similar to the linked-list cursor examples where the alpha shows the same imprecision as NLLs, but that can work due to the loans not being live after the loop, or the constraint graph being simple enough that the cfg/subset relationships are the same for reachability and liveness.

- linked-list cursor-like patterns - issue-46589 These are known-bugs for the polonius alpha, where they show the same imprecision as NLLs, but are supported by the old datalog implementation.

also add a note to `GenericArgs::truncate_to`

Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>

some clauses can be merged together without requiring an attribute for each trait derived. also manually impl `Eq` because the `derive_where` generated code is too much for my comfort

Co-authored-by: Florian Bartels <108917393+flba-eb@users.noreply.github.com> Co-authored-by: Mads Marquart <mads@marquart.dk>

This (poorly named) target option controls whether or not cdylibs will export mangled rust symbols rather than just unmangled symbols. Presumably at some point in the past support for this wasn't implemented yet for Solaris, but cg_ssa::back::linker does have handling for this on Solaris now. And one of the Solaris target maintainers confirmed that building Rust with this option enabled works fine for them on Solaris.

rustdoc has its own issue template now, mention that. swap the order of the last two sentances so it reads more like a typical if/else chain (base case listed last). adjust some labels and descriptions

Zalathar · 2025-08-10T02:43:41Z

@bors r+ rollup=never p=5

bors · 2025-08-10T02:43:44Z

📌 Commit f0ea3bf has been approved by Zalathar

It is now in the queue for this repository.

Zalathar · 2025-08-10T02:47:28Z

@bors try jobs=test-various,dist-ohos-x86_64

rust-bors · 2025-08-10T02:47:32Z

⌛ Trying commit f0ea3bf with merge 9fe0b47…

To cancel the try build, run the command @bors try cancel.

Rollup of 21 pull requests try-job: test-various try-job: dist-ohos-x86_64

rust-log-analyzer · 2025-08-10T02:48:50Z

The job tidy failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot)

Diff in /checkout/library/core/src/num/nonzero.rs:313:
 #[rustc_const_unstable(feature = "const_ops", issue = "143802")]
 impl<T> const BitOr for NonZero<T>
 where
-    T: ZeroablePrimitive + ~const BitOr<Output = T>,
+    T: ZeroablePrimitive + [const] BitOr<Output = T>,
 {
     type Output = Self;
 
Diff in /checkout/library/core/src/num/nonzero.rs:328:
 #[rustc_const_unstable(feature = "const_ops", issue = "143802")]
 impl<T> const BitOr<T> for NonZero<T>
 where
-    T: ZeroablePrimitive + ~const BitOr<Output = T>,
+    T: ZeroablePrimitive + [const] BitOr<Output = T>,
 {
     type Output = Self;
 
Diff in /checkout/library/core/src/num/nonzero.rs:343:
 #[rustc_const_unstable(feature = "const_ops", issue = "143802")]
 impl<T> const BitOr<NonZero<T>> for T
 where
-    T: ZeroablePrimitive + ~const BitOr<Output = T>,
+    T: ZeroablePrimitive + [const] BitOr<Output = T>,
 {
     type Output = NonZero<T>;
 
Diff in /checkout/library/core/src/num/nonzero.rs:359:
 impl<T> const BitOrAssign for NonZero<T>
 where
     T: ZeroablePrimitive,
-    Self: ~const BitOr<Output = Self>,
+    Self: [const] BitOr<Output = Self>,
 {
     #[inline]
     fn bitor_assign(&mut self, rhs: Self) {
Diff in /checkout/library/core/src/num/nonzero.rs:372:
 impl<T> const BitOrAssign<T> for NonZero<T>
 where
     T: ZeroablePrimitive,
-    Self: ~const BitOr<T, Output = Self>,
+    Self: [const] BitOr<T, Output = Self>,
 {
     #[inline]
     fn bitor_assign(&mut self, rhs: T) {
fmt: checked 6297 files
Build completed unsuccessfully in 0:00:54

Zalathar · 2025-08-10T02:51:22Z

Huh, something is failing tidy.

@bors r-

rust-log-analyzer · 2025-08-10T03:52:25Z

The job test-various failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot)

Saved the actual stderr to `/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/attributes/malformed-attrs/malformed-attrs.stderr`
diff of stderr:

665 For more information about an error, try `rustc --explain E0308`.
666 Future incompatibility report: Future breakage diagnostic:
667 error: valid forms for the attribute are `#[doc(hidden|inline|...)]` and `#[doc = "string"]`
-   --> $DIR/malformed-attrs.rs:44:1
669    |
670 LL | #[doc]
671    | ^^^^^^

676 
677 Future breakage diagnostic:
678 error: valid forms for the attribute are `#[doc(hidden|inline|...)]` and `#[doc = "string"]`
-   --> $DIR/malformed-attrs.rs:77:1
680    |
681 LL | #[doc]
682    | ^^^^^^

687 
688 Future breakage diagnostic:
689 error: attribute must be of the form `#[link(name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ wasm_import_module = "...", /*opt*/ import_name_type = "decorated|noprefix|undecorated")]`
-   --> $DIR/malformed-attrs.rs:84:1
691    |
692 LL | #[link]
693    | ^^^^^^^

698 
699 Future breakage diagnostic:
700 error: valid forms for the attribute are `#[inline(always|never)]` and `#[inline]`
-   --> $DIR/malformed-attrs.rs:54:1
702    |
703 LL | #[inline = 5]
704    | ^^^^^^^^^^^^^

709 
710 Future breakage diagnostic:
711 error: valid forms for the attribute are `#[ignore = "reason"]` and `#[ignore]`
-   --> $DIR/malformed-attrs.rs:95:1
713    |
714 LL | #[ignore()]
715    | ^^^^^^^^^^^

720 
721 Future breakage diagnostic:
722 error: valid forms for the attribute are `#[ignore = "reason"]` and `#[ignore]`
-   --> $DIR/malformed-attrs.rs:224:1
724    |
725 LL | #[ignore = 1]
726    | ^^^^^^^^^^^^^


The actual stderr differed from the expected stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args attributes/malformed-attrs.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/attributes/malformed-attrs.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=wasm32-wasip1" "--check-cfg" "cfg(test,FALSE)" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/attributes/malformed-attrs" "-A" "unused" "-A" "internal_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/wasm32-wasip1/native/rust-test-helpers"
stdout: none
--- stderr -------------------------------
error[E0539]: malformed `cfg` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:99:1
   |
LL | #[cfg]
   | ^^^^^^
   | |
   | expected this to be a list
   | help: must be of the form: `#[cfg(predicate)]`

error: malformed `cfg_attr` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:101:1
   |
LL | #[cfg_attr]
---

error: malformed `windows_subsystem` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:26:1
   |
LL | #![windows_subsystem]
   | ^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#![windows_subsystem = "windows|console"]`

error: malformed `crate_name` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:71:1
   |
LL | #[crate_name]
   | ^^^^^^^^^^^^^ help: must be of the form: `#[crate_name = "name"]`

error: malformed `no_sanitize` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:89:1
   |
LL | #[no_sanitize]
   | ^^^^^^^^^^^^^^ help: must be of the form: `#[no_sanitize(address, kcfi, memory, thread)]`

error: malformed `instruction_set` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:103:1
   |
LL | #[instruction_set]
   | ^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[instruction_set(set)]`

error: malformed `patchable_function_entry` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:105:1
   |
LL | #[patchable_function_entry]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[patchable_function_entry(prefix_nops = m, entry_nops = n)]`

error: malformed `must_not_suspend` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:129:1
   |
LL | #[must_not_suspend()]
   | ^^^^^^^^^^^^^^^^^^^^^
   |
help: the following are the possible correct uses
   |
LL - #[must_not_suspend()]
LL + #[must_not_suspend = "reason"]
   |
LL - #[must_not_suspend()]
LL + #[must_not_suspend]
   |

error: malformed `cfi_encoding` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:131:1
   |
LL | #[cfi_encoding]
   | ^^^^^^^^^^^^^^^ help: must be of the form: `#[cfi_encoding = "encoding"]`

error: malformed `linkage` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:170:5
   |
LL |     #[linkage]
   |     ^^^^^^^^^^ help: must be of the form: `#[linkage = "external|internal|..."]`

error: malformed `allow` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:175:1
   |
LL | #[allow]
   | ^^^^^^^^ help: must be of the form: `#[allow(lint1, lint2, ..., /*opt*/ reason = "...")]`

error: malformed `expect` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:177:1
   |
LL | #[expect]
   | ^^^^^^^^^ help: must be of the form: `#[expect(lint1, lint2, ..., /*opt*/ reason = "...")]`

error: malformed `warn` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:179:1
   |
LL | #[warn]
   | ^^^^^^^ help: must be of the form: `#[warn(lint1, lint2, ..., /*opt*/ reason = "...")]`

error: malformed `deny` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:181:1
   |
LL | #[deny]
   | ^^^^^^^ help: must be of the form: `#[deny(lint1, lint2, ..., /*opt*/ reason = "...")]`

error: malformed `forbid` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:183:1
   |
LL | #[forbid]
   | ^^^^^^^^^ help: must be of the form: `#[forbid(lint1, lint2, ..., /*opt*/ reason = "...")]`

error: malformed `debugger_visualizer` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:185:1
   |
LL | #[debugger_visualizer]
   | ^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[debugger_visualizer(natvis_file = "...", gdb_script_file = "...")]`

error: malformed `thread_local` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:200:1
   |
LL | #[thread_local()]
   | ^^^^^^^^^^^^^^^^^ help: must be of the form: `#[thread_local]`

error: malformed `no_link` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:204:1
   |
LL | #[no_link()]
   | ^^^^^^^^^^^^ help: must be of the form: `#[no_link]`

error: malformed `macro_export` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:211:1
   |
LL | #[macro_export = 18]
---
LL - #[macro_export = 18]
LL + #[macro_export]
   |

error: the `#[proc_macro]` attribute is only usable with crates of the `proc-macro` crate type
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:96:1
   |
LL | #[proc_macro = 18]
   | ^^^^^^^^^^^^^^^^^^

error: the `#[proc_macro_attribute]` attribute is only usable with crates of the `proc-macro` crate type
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:113:1
   |
LL | #[proc_macro_attribute = 19]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: the `#[proc_macro_derive]` attribute is only usable with crates of the `proc-macro` crate type
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:120:1
   |
LL | #[proc_macro_derive]
   | ^^^^^^^^^^^^^^^^^^^^

error[E0658]: allow_internal_unsafe side-steps the unsafe_code lint
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:213:1
   |
LL | #[allow_internal_unsafe = 1]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: add `#![feature(allow_internal_unsafe)]` 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: valid forms for the attribute are `#[doc(hidden|inline|...)]` and `#[doc = "string"]`
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:40:1
   |
LL | #[doc]
   | ^^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
   = note: `#[deny(ill_formed_attribute_input)]` on by default

error: valid forms for the attribute are `#[doc(hidden|inline|...)]` and `#[doc = "string"]`
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:73:1
   |
LL | #[doc]
   | ^^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>

error: attribute must be of the form `#[link(name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ wasm_import_module = "...", /*opt*/ import_name_type = "decorated|noprefix|undecorated")]`
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:80:1
   |
LL | #[link]
   | ^^^^^^^
   |
---

error[E0539]: malformed `export_name` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:29:1
   |
LL | #[unsafe(export_name)]
   | ^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[export_name = "name"]`

error: `rustc_allow_const_fn_unstable` expects a list of feature names
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:31:1
   |
LL | #[rustc_allow_const_fn_unstable]
---
LL | #[rustc_confusables]
   | ^^^^^^^^^^^^^^^^^^^^
   | |
   | expected this to be a list
   | help: must be of the form: `#[rustc_confusables("name1", "name2", ...)]`

error[E0539]: malformed `deprecated` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:38:1
   |
LL | #[deprecated = 5]
   | ^^^^^^^^^^^^^^^-^
   |                |
   |                expected a string literal here
   |
help: try changing it to one of the following valid forms of the attribute
   |
LL - #[deprecated = 5]
LL + #[deprecated = "reason"]
   |
LL - #[deprecated = 5]
LL + #[deprecated(/*opt*/ since = "version", /*opt*/ note = "reason")]
   |
LL - #[deprecated = 5]
LL + #[deprecated]
   |

error[E0539]: malformed `rustc_macro_transparency` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:43:1
   |
LL | #[rustc_macro_transparency]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[rustc_macro_transparency = "transparent|semitransparent|opaque"]`

error[E0539]: malformed `repr` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:45:1
   |
LL | #[repr]
   | ^^^^^^^
   | |
   | expected this to be a list
   | help: must be of the form: `#[repr(C | Rust | align(...) | packed(...) | <integer type> | transparent)]`

error[E0565]: malformed `rustc_as_ptr` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:48:1
   |
LL | #[rustc_as_ptr = 5]
   | ^^^^^^^^^^^^^^^---^
   | |              |
   | |              didn't expect any arguments here
   | help: must be of the form: `#[rustc_as_ptr]`

error[E0539]: malformed `rustc_align` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:53:1
   |
LL | #[rustc_align]
   | ^^^^^^^^^^^^^^
   | |
   | expected this to be a list
   | help: must be of the form: `#[rustc_align(<alignment in bytes>)]`

error[E0539]: malformed `optimize` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:55:1
   |
LL | #[optimize]
   | ^^^^^^^^^^^
   | |
   | expected this to be a list
   | help: must be of the form: `#[optimize(size|speed|none)]`

error[E0565]: malformed `cold` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:57:1
   |
LL | #[cold = 1]
   | ^^^^^^^---^
   | |      |
   | |      didn't expect any arguments here
   | help: must be of the form: `#[cold]`

error: valid forms for the attribute are `#[must_use = "reason"]` and `#[must_use]`
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:59:1
   |
LL | #[must_use()]
   | ^^^^^^^^^^^^^

---

error[E0539]: malformed `export_name` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:67:1
   |
LL | #[export_name()]
   | ^^^^^^^^^^^^^^^^ help: must be of the form: `#[export_name = "name"]`

error[E0805]: malformed `used` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:69:1
   |
LL | #[used()]
   | ^^^^^^--^
   |       |
   |       expected a single argument here
   |
help: try changing it to one of the following valid forms of the attribute
   |
LL | #[used(compiler|linker)]
   |        +++++++++++++++
LL - #[used()]
LL + #[used]
   |

error[E0539]: malformed `target_feature` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:76:1
   |
LL | #[target_feature]
   | ^^^^^^^^^^^^^^^^^
   | |
   | expected this to be a list
   | help: must be of the form: `#[target_feature(enable = "feat1, feat2")]`

error[E0565]: malformed `export_stable` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:78:1
   |
LL | #[export_stable = 1]
---
error[E0539]: malformed `link_name` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:83:1
   |
LL | #[link_name]
   | ^^^^^^^^^^^^ help: must be of the form: `#[link_name = "name"]`

error[E0539]: malformed `link_section` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:85:1
   |
LL | #[link_section]
   | ^^^^^^^^^^^^^^^ help: must be of the form: `#[link_section = "name"]`

error[E0539]: malformed `coverage` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:87:1
   |
LL | #[coverage]
   | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument
   |
help: try changing it to one of the following valid forms of the attribute
   |
LL | #[coverage(off)]
   |           +++++
---
   |
LL | #[no_implicit_prelude = 23]
   | ^^^^^^^^^^^^^^^^^^^^^^----^
   | |                     |
   | |                     didn't expect any arguments here
   | help: must be of the form: `#[no_implicit_prelude]`

error[E0565]: malformed `proc_macro` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:96:1
   |
LL | #[proc_macro = 18]
   | ^^^^^^^^^^^^^----^
   | |            |
   | |            didn't expect any arguments here
   | help: must be of the form: `#[proc_macro]`

error[E0565]: malformed `coroutine` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:108:5
   |
LL |     #[coroutine = 63] || {}
---
   |
LL | #[proc_macro_attribute = 19]
   | ^^^^^^^^^^^^^^^^^^^^^^^----^
   | |                      |
   | |                      didn't expect any arguments here
   | help: must be of the form: `#[proc_macro_attribute]`

error[E0539]: malformed `must_use` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:116:1
   |
LL | #[must_use = 1]
   | ^^^^^^^^^^^^^-^
   |              |
   |              expected a string literal here
   |
help: try changing it to one of the following valid forms of the attribute
   |
LL - #[must_use = 1]
LL + #[must_use = "reason"]
   |
LL - #[must_use = 1]
LL + #[must_use]
   |

error[E0539]: malformed `proc_macro_derive` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:120:1
   |
LL | #[proc_macro_derive]
   | ^^^^^^^^^^^^^^^^^^^^
   | |
   | expected this to be a list
   | help: must be of the form: `#[proc_macro_derive(TraitName, /*opt*/ attributes(name1, name2, ...))]`

error[E0539]: malformed `rustc_layout_scalar_valid_range_start` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:125:1
   |
LL | #[rustc_layout_scalar_valid_range_start]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   | |
   | expected this to be a list
   | help: must be of the form: `#[rustc_layout_scalar_valid_range_start(start)]`

error[E0539]: malformed `rustc_layout_scalar_valid_range_end` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:127:1
   |
LL | #[rustc_layout_scalar_valid_range_end]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   | |
   | expected this to be a list
   | help: must be of the form: `#[rustc_layout_scalar_valid_range_end(end)]`

error[E0565]: malformed `marker` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:152:1
   |
LL | #[marker = 3]
   | ^^^^^^^^^---^
   | |        |
   | |        didn't expect any arguments here
   | help: must be of the form: `#[marker]`

error[E0565]: malformed `fundamental` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:154:1
   |
LL | #[fundamental()]
   | ^^^^^^^^^^^^^--^
   | |            |
   | |            didn't expect any arguments here
   | help: must be of the form: `#[fundamental]`

error[E0565]: malformed `ffi_pure` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:162:5
   |
LL |     #[unsafe(ffi_pure = 1)]
   |     ^^^^^^^^^^^^^^^^^^---^^
   |     |                 |
   |     |                 didn't expect any arguments here
   |     help: must be of the form: `#[ffi_pure]`

error[E0539]: malformed `link_ordinal` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:164:5
   |
LL |     #[link_ordinal]
   |     ^^^^^^^^^^^^^^^
   |     |
   |     expected this to be a list
   |     help: must be of the form: `#[link_ordinal(ordinal)]`

error[E0565]: malformed `ffi_const` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:168:5
   |
LL |     #[unsafe(ffi_const = 1)]
   |     ^^^^^^^^^^^^^^^^^^^---^^
   |     |                  |
   |     |                  didn't expect any arguments here
   |     help: must be of the form: `#[ffi_const]`

error[E0565]: malformed `automatically_derived` attribute input
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:188:1
   |
LL | #[automatically_derived = 18]
---
   | |                |
   | |                didn't expect any arguments here
   | help: must be of the form: `#[non_exhaustive]`

error: valid forms for the attribute are `#[macro_use(name1, name2, ...)]` and `#[macro_use]`
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:206:1
   |
LL | #[macro_use = 1]
   | ^^^^^^^^^^^^^^^^

---
   |
LL |     #[type_const = 1]
   |     ^^^^^^^^^^^^^---^
   |     |            |
   |     |            didn't expect any arguments here
   |     help: must be of the form: `#[type_const]`

error: attribute should be applied to `const fn`
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:31:1
   |
LL |   #[rustc_allow_const_fn_unstable]
---
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid option found here
   |
   = help: only `message`, `note` and `label` are allowed as options

error: valid forms for the attribute are `#[inline(always|never)]` and `#[inline]`
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:50:1
   |
LL | #[inline = 5]
   | ^^^^^^^^^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>

error: valid forms for the attribute are `#[ignore = "reason"]` and `#[ignore]`
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:91:1
   |
LL | #[ignore()]
   | ^^^^^^^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>

error: valid forms for the attribute are `#[ignore = "reason"]` and `#[ignore]`
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:220:1
   |
LL | #[ignore = 1]
   | ^^^^^^^^^^^^^
   |
---
LL |     #[coroutine = 63] || {}
   |                       ^^^^^ expected `()`, found coroutine
   |
   = note: expected unit type `()`
              found coroutine `{coroutine@/checkout/tests/ui/attributes/malformed-attrs.rs:108:23: 108:25}`

error: aborting due to 74 previous errors; 3 warnings emitted

Some errors have detailed explanations: E0308, E0463, E0539, E0565, E0658, E0805.
For more information about an error, try `rustc --explain E0308`.
Future incompatibility report: Future breakage diagnostic:
error: valid forms for the attribute are `#[doc(hidden|inline|...)]` and `#[doc = "string"]`
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:40:1
   |
LL | #[doc]
   | ^^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
   = note: `#[deny(ill_formed_attribute_input)]` on by default

Future breakage diagnostic:
error: valid forms for the attribute are `#[doc(hidden|inline|...)]` and `#[doc = "string"]`
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:73:1
   |
LL | #[doc]
   | ^^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
   = note: `#[deny(ill_formed_attribute_input)]` on by default

Future breakage diagnostic:
error: attribute must be of the form `#[link(name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ wasm_import_module = "...", /*opt*/ import_name_type = "decorated|noprefix|undecorated")]`
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:80:1
   |
LL | #[link]
   | ^^^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
   = note: `#[deny(ill_formed_attribute_input)]` on by default

Future breakage diagnostic:
error: valid forms for the attribute are `#[inline(always|never)]` and `#[inline]`
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:50:1
   |
LL | #[inline = 5]
   | ^^^^^^^^^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
   = note: `#[deny(ill_formed_attribute_input)]` on by default

Future breakage diagnostic:
error: valid forms for the attribute are `#[ignore = "reason"]` and `#[ignore]`
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:91:1
   |
LL | #[ignore()]
   | ^^^^^^^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
   = note: `#[deny(ill_formed_attribute_input)]` on by default

Future breakage diagnostic:
error: valid forms for the attribute are `#[ignore = "reason"]` and `#[ignore]`
##[error]  --> /checkout/tests/ui/attributes/malformed-attrs.rs:220:1
   |
LL | #[ignore = 1]
   | ^^^^^^^^^^^^^
   |

rust-bors · 2025-08-10T03:52:51Z

💔 Test failed (CI). Failed jobs:

bors build finished (web logs, extended logs)
try - dist-ohos-x86_64 (web logs, extended logs)
try - test-various (web logs, extended logs)

jyn514 and others added 30 commits May 26, 2025 20:22

asm: Stabilize loongarch32

a383fb0

moved 34 tests to organized locations

90bb5ca

Start reporting future breakage for ILL_FORMED_ATTRIBUTE_INPUT in d…

7bd902d

…ependencies Signed-off-by: Jonathan Brouwer <jonathantbrouwer@gmail.com>

Let forward_ref_* macros accept multiple attributes, and require attr…

06fa28a

…ibutes explicitly

Constify remaining operators

59a69c7

Improve error output when a command fails in bootstrap

d9b725a

switch polonius compare-mode to polonius=next

43327b5

update test expectations for boring locals + dropckoutlives interactions

f4094ea

The suboptimal error only appears with NLLs due to liveness differences where polonius cannot have as many boring locals. Sometimes this causes NLLs to emit a duplicate error as well.

new impl fixes crash test

1330898

turn expensive assert into debug assertion

d4bbd68

add some test cases for overlapping yielded items

b172980

These are just some sanity checks to ensure NLLs, the polonius alpha analysis, and the datalog implementation behave the same on these common examples.

add NLL-like imprecision example

48ebae9

This test showcases the same imprecision as NLLs, unlike the datalog implementation, when using reachability as a liveness approximation.

mark polonius=next's NLL imprecisions as known-bugs

b99fe2b

- linked-list cursor-like patterns - issue-46589 These are known-bugs for the polonius alpha, where they show the same imprecision as NLLs, but are supported by the old datalog implementation.

[win][arm64ec] Partial fix for raw-dylib-link-ordinal on Arm64EC

dcc1605

[win][arm64ec] Add '/machine:arm64ec' when linking LLVM as Arm64EC

87a09b2

Use new public libtest ERROR_EXIT_CODE constant in rustdoc

339be84

rename TraitRef::from_method to from_assoc

2736d66

also add a note to `GenericArgs::truncate_to`

Use to_ascii_lowercase to avoid heap alloc in detect_confuse_type

a8b0f75

Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>

Stabilize feature

b5e2ba6

Port #[allow_internal_unsafe] to the new attribute system (attempt 2)

f777067

Override custom Cargo build-dir in bootstrap

a5ddf5d

comments

1676563

Change days-threshold to 28 in [behind-upstream]

ca1e464

Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>

some derive_more refactors

71f6e53

some clauses can be merged together without requiring an attribute for each trait derived. also manually impl `Eq` because the `derive_where` generated code is too much for my comfort

Apply suggestions from code review

f4d3dd0

Co-authored-by: Florian Bartels <108917393+flba-eb@users.noreply.github.com> Co-authored-by: Mads Marquart <mads@marquart.dk>

improve "Documentation problem" issue template.

a59842e

rustdoc has its own issue template now, mention that. swap the order of the last two sentances so it reads more like a typical if/else chain (base case listed last). adjust some labels and descriptions

bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Aug 10, 2025

rust-bors bot added a commit that referenced this pull request Aug 10, 2025

Auto merge of #145192 - Zalathar:rollup-ig4prp9, r=<try>

9fe0b47

Rollup of 21 pull requests try-job: test-various try-job: dist-ohos-x86_64

bors added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Aug 10, 2025

Zalathar mentioned this pull request Aug 10, 2025

Constify remaining traits/impls for const_ops #143949

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rustbot removed the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. label Aug 10, 2025

Zalathar deleted the rollup-ig4prp9 branch August 10, 2025 03:01

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