Check no pointee attribute pos

[gangov]

takes on the example from #128552 and refactors it so we have correct usage of #[pointee]

[rustbot]

Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @estebank (or someone else) some time within the next two weeks.

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[rust-log-analyzer]

The job x86_64-gnu-llvm-17 failed! Check out the build log: (web) (plain)

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

------
 > importing cache manifest from ghcr.io/rust-lang/rust-ci-cache:3aacb9c90579defe09351ac5e8ee504359f8054da6326ff19038f1b7c90e3cb2aafe33685c6d9b76ee8d2ccbd187ca80c46ab5380485abdd8c0ce7d69cd8d8fd:
------
##[endgroup]
Setting extra environment values for docker:  --env ENABLE_GCC_CODEGEN=1 --env GCC_EXEC_PREFIX=/usr/lib/gcc/
[CI_JOB_NAME=x86_64-gnu-llvm-17]
---
sccache: Starting the server...
##[group]Configure the build
configure: processing command line
configure: 
configure: build.configure-args := ['--build=x86_64-unknown-linux-gnu', '--llvm-root=/usr/lib/llvm-17', '--enable-llvm-link-shared', '--set', 'rust.thin-lto-import-instr-limit=10', '--set', 'change-id=99999999', '--enable-verbose-configure', '--enable-sccache', '--disable-manage-submodules', '--enable-locked-deps', '--enable-cargo-native-static', '--set', 'rust.codegen-units-std=1', '--set', 'dist.compression-profile=balanced', '--dist-compression-formats=xz', '--set', 'rust.lld=false', '--disable-dist-src', '--release-channel=nightly', '--enable-debug-assertions', '--enable-overflow-checks', '--enable-llvm-assertions', '--set', 'rust.verify-llvm-ir', '--set', 'rust.codegen-backends=llvm,cranelift,gcc', '--set', 'llvm.static-libstdcpp', '--enable-new-symbol-mangling']
configure: target.x86_64-unknown-linux-gnu.llvm-config := /usr/lib/llvm-17/bin/llvm-config
configure: llvm.link-shared     := True
configure: rust.thin-lto-import-instr-limit := 10
configure: change-id            := 99999999
---
- error: aborting due to 6 previous errors
+ error[E0635]: unknown feature `pointee`
+   --> $DIR/pointee.rs:1:12
+    |
+ LL | #![feature(pointee)]
+ 
+ error: aborting due to 7 previous errors
+ 
+ For more information about this error, try `rustc --explain E0635`.
---
To only update this specific test, also pass `--test-args attributes/pointee.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/pointee.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=x86_64-unknown-linux-gnu" "--check-cfg" "cfg(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/pointee" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/attributes/pointee/auxiliary"
--- stderr -------------------------------
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/attributes/pointee.rs:8:5
   |
   |
LL |       #[pointee] //~ ERROR attribute should be applied to a function definition
LL | /     {
LL | |         1
LL | |     };
   | |_____- not a function definition
   | |_____- not a function definition

error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/attributes/pointee.rs:14:1
   |
LL | #[pointee] //~ ERROR attribute should be applied to a function definition
LL | type InvalidTy = ();
   | -------------------- not a function definition

error: attribute should be applied to a function definition
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/attributes/pointee.rs:17:1
   |
LL | #[pointee] //~ ERROR attribute should be applied to a function definition
LL | mod invalid_module {}
   | --------------------- not a function definition

error: attribute should be applied to a function definition
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/attributes/pointee.rs:21:13
   |
LL |     let _ = #[pointee] //~ ERROR attribute should be applied to a function definition
   |             ^^^^^^^^^^
LL |     (|| 1);

error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/attributes/pointee.rs:25:1
   |
   |
LL | #[pointee] //~ ERROR attribute should be applied to a function definition
LL | struct F;
   | --------- not a function definition

error: attribute should be applied to a function definition
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/attributes/pointee.rs:28:1
   |
LL |   #[pointee] //~ ERROR attribute should be applied to a function definition
LL | / impl F {
LL | / impl F {
LL | |     #[pointee]
LL | |     fn valid(&self) {}
   | |_- not a function definition

error[E0635]: unknown feature `pointee`
##[error]  --> /checkout/tests/ui/attributes/pointee.rs:1:12
---

---- [ui] tests/ui/deriving/deriving-smart-pointer-neg.rs stdout ----
diff of stderr:

44 LL | struct NoMaybeSized<'a, #[pointee] T> {
46 
+ error: attribute should be applied to a function definition
+   --> $DIR/deriving-smart-pointer-neg.rs:22:20
+    |
+    |
+ LL | struct NoField<'a, #[pointee] T: ?Sized> {}
+    |                    ^^^^^^^^^^ - not a function definition
+ error: attribute should be applied to a function definition
+   --> $DIR/deriving-smart-pointer-neg.rs:29:24
+    |
+    |
+ LL | struct NoFieldUnit<'a, #[pointee] T: ?Sized>();
+    |                        ^^^^^^^^^^ - not a function definition
+ error: attribute should be applied to a function definition
+   --> $DIR/deriving-smart-pointer-neg.rs:35:27
+    |
+    |
+ LL | struct NotTransparent<'a, #[pointee] T: ?Sized> {
+    |                           ^^^^^^^^^^ - not a function definition
+ error: attribute should be applied to a function definition
+   --> $DIR/deriving-smart-pointer-neg.rs:41:25
+    |
+    |
+ LL | struct NoMaybeSized<'a, #[pointee] T> {
+    |                         ^^^^^^^^^^ - not a function definition
+ error: attribute should be applied to a function definition
+   --> $DIR/deriving-smart-pointer-neg.rs:49:40
+    |
+    |
+ LL | struct ThisIsAPossibleSmartPointer<'a, #[pointee] T: ?Sized> {
+    |                                        ^^^^^^^^^^ - not a function definition
+ error: attribute should be applied to a function definition
+   --> $DIR/deriving-smart-pointer-neg.rs:56:21
+    |
+    |
+ LL | struct StdSized<'a, #[pointee] T: ?std::marker::Sized> {
+    |                     ^^^^^^^^^^ - not a function definition
+ error: attribute should be applied to a function definition
+   --> $DIR/deriving-smart-pointer-neg.rs:61:22
+    |
+    |
+ LL | struct CoreSized<'a, #[pointee] T: ?core::marker::Sized> {
+    |                      ^^^^^^^^^^ - not a function definition
+ error: attribute should be applied to a function definition
+   --> $DIR/deriving-smart-pointer-neg.rs:66:27
+    |
+    |
+ LL | struct GlobalStdSized<'a, #[pointee] T: ?::std::marker::Sized> {
+    |                           ^^^^^^^^^^ - not a function definition
+ error: attribute should be applied to a function definition
+   --> $DIR/deriving-smart-pointer-neg.rs:71:28
+    |
+    |
+ LL | struct GlobalCoreSized<'a, #[pointee] T: ?::core::marker::Sized> {
+    |                            ^^^^^^^^^^ - not a function definition
+ 
47 error[E0392]: lifetime parameter `'a` is never used
49    |

76    |
76    |
77    = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
- error: aborting due to 10 previous errors
+ error: aborting due to 19 previous errors
80 
81 For more information about this error, try `rustc --explain E0392`.
---
To only update this specific test, also pass `--test-args deriving/deriving-smart-pointer-neg.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/deriving/deriving-smart-pointer-neg.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=x86_64-unknown-linux-gnu" "--check-cfg" "cfg(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/deriving/deriving-smart-pointer-neg" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/deriving/deriving-smart-pointer-neg/auxiliary"
--- stderr -------------------------------
--- stderr -------------------------------
error: `SmartPointer` can only be derived on `struct`s with `#[repr(transparent)]`
   |
LL | #[derive(SmartPointer)]
   |          ^^^^^^^^^^^^
   |
   |
   = note: this error originates in the derive macro `SmartPointer` (in Nightly builds, run with -Z macro-backtrace for more info)

error: At least one generic type should be designated as `#[pointee]` in order to derive `SmartPointer` traits
   |
LL | #[derive(SmartPointer)]
   |          ^^^^^^^^^^^^
   |
   |
   = note: this error originates in the derive macro `SmartPointer` (in Nightly builds, run with -Z macro-backtrace for more info)

error: `SmartPointer` can only be derived on `struct`s with at least one field
   |
LL | #[derive(SmartPointer)]
   |          ^^^^^^^^^^^^
   |
   |
   = note: this error originates in the derive macro `SmartPointer` (in Nightly builds, run with -Z macro-backtrace for more info)

error: `SmartPointer` can only be derived on `struct`s with at least one field
   |
LL | #[derive(SmartPointer)]
   |          ^^^^^^^^^^^^
   |
   |
   = note: this error originates in the derive macro `SmartPointer` (in Nightly builds, run with -Z macro-backtrace for more info)

error: `SmartPointer` can only be derived on `struct`s with `#[repr(transparent)]`
   |
LL | #[derive(SmartPointer)]
   |          ^^^^^^^^^^^^
   |
   |
   = note: this error originates in the derive macro `SmartPointer` (in Nightly builds, run with -Z macro-backtrace for more info)

error: `derive(SmartPointer)` requires T to be marked `?Sized`
   |
   |
LL | struct NoMaybeSized<'a, #[pointee] T> {

error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/deriving/deriving-smart-pointer-neg.rs:22:20
   |
   |
LL | struct NoField<'a, #[pointee] T: ?Sized> {}
   |                    ^^^^^^^^^^ - not a function definition
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/deriving/deriving-smart-pointer-neg.rs:29:24
   |
   |
LL | struct NoFieldUnit<'a, #[pointee] T: ?Sized>();
   |                        ^^^^^^^^^^ - not a function definition
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/deriving/deriving-smart-pointer-neg.rs:35:27
   |
   |
LL | struct NotTransparent<'a, #[pointee] T: ?Sized> {
   |                           ^^^^^^^^^^ - not a function definition
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/deriving/deriving-smart-pointer-neg.rs:41:25
   |
   |
LL | struct NoMaybeSized<'a, #[pointee] T> {
   |                         ^^^^^^^^^^ - not a function definition
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/deriving/deriving-smart-pointer-neg.rs:49:40
   |
   |
LL | struct ThisIsAPossibleSmartPointer<'a, #[pointee] T: ?Sized> {
   |                                        ^^^^^^^^^^ - not a function definition
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/deriving/deriving-smart-pointer-neg.rs:56:21
   |
   |
LL | struct StdSized<'a, #[pointee] T: ?std::marker::Sized> {
   |                     ^^^^^^^^^^ - not a function definition
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/deriving/deriving-smart-pointer-neg.rs:61:22
   |
   |
LL | struct CoreSized<'a, #[pointee] T: ?core::marker::Sized> {
   |                      ^^^^^^^^^^ - not a function definition
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/deriving/deriving-smart-pointer-neg.rs:66:27
   |
   |
LL | struct GlobalStdSized<'a, #[pointee] T: ?::std::marker::Sized> {
   |                           ^^^^^^^^^^ - not a function definition
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/deriving/deriving-smart-pointer-neg.rs:71:28
   |
   |
LL | struct GlobalCoreSized<'a, #[pointee] T: ?::core::marker::Sized> {
   |                            ^^^^^^^^^^ - not a function definition

error[E0392]: lifetime parameter `'a` is never used
   |
   |
LL | struct NoField<'a, #[pointee] T: ?Sized> {}
   |                ^^ unused lifetime parameter
   |
   = help: consider removing `'a`, referring to it in a field, or using a marker such as `PhantomData`
error[E0392]: type parameter `T` is never used
##[error]  --> /checkout/tests/ui/deriving/deriving-smart-pointer-neg.rs:22:31
   |
   |
LL | struct NoField<'a, #[pointee] T: ?Sized> {}
   |                               ^ unused type parameter
   |
   = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`

error[E0392]: lifetime parameter `'a` is never used
   |
   |
LL | struct NoFieldUnit<'a, #[pointee] T: ?Sized>();
   |                    ^^ unused lifetime parameter
   |
   = help: consider removing `'a`, referring to it in a field, or using a marker such as `PhantomData`
error[E0392]: type parameter `T` is never used
##[error]  --> /checkout/tests/ui/deriving/deriving-smart-pointer-neg.rs:29:35
   |
   |
LL | struct NoFieldUnit<'a, #[pointee] T: ?Sized>();
   |                                   ^ unused type parameter
   |
   = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
error: aborting due to 19 previous errors

For more information about this error, try `rustc --explain E0392`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/deriving/deriving-smart-pointer.rs stdout ----

error: test compilation failed although it shouldn't!
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/deriving/deriving-smart-pointer.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=x86_64-unknown-linux-gnu" "--check-cfg" "cfg(FALSE)" "-O" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/deriving/deriving-smart-pointer/a" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/deriving/deriving-smart-pointer/auxiliary"
--- stderr -------------------------------
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/deriving/deriving-smart-pointer.rs:8:22
   |
   |
LL | struct MyPointer<'a, #[pointee] T: ?Sized> {
   |                      ^^^^^^^^^^ - not a function definition
error: aborting due to 1 previous error
------------------------------------------



---- [ui] tests/ui/deriving/smart-pointer-bounds-issue-127647.rs stdout ----

error: test compilation failed although it shouldn't!
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/deriving/smart-pointer-bounds-issue-127647.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=x86_64-unknown-linux-gnu" "--check-cfg" "cfg(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/deriving/smart-pointer-bounds-issue-127647" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/deriving/smart-pointer-bounds-issue-127647/auxiliary"
--- stderr -------------------------------
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/deriving/smart-pointer-bounds-issue-127647.rs:7:20
   |
   |
LL | pub struct Ptr<'a, #[pointee] T: OnDrop + ?Sized, X> {
   |                    ^^^^^^^^^^ - not a function definition
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/deriving/smart-pointer-bounds-issue-127647.rs:18:21
   |
   |
LL | pub struct Ptr2<'a, #[pointee] T: ?Sized, X>
   |                     ^^^^^^^^^^ - not a function definition
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/deriving/smart-pointer-bounds-issue-127647.rs:30:21
   |
   |
LL | pub struct Ptr3<'a, #[pointee] T: ?Sized, X>
   |                     ^^^^^^^^^^ - not a function definition
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/deriving/smart-pointer-bounds-issue-127647.rs:40:21
   |
   |
LL | pub struct Ptr4<'a, #[pointee] T: MyTrait<T> + ?Sized, X> {
   |                     ^^^^^^^^^^ - not a function definition
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/deriving/smart-pointer-bounds-issue-127647.rs:47:21
   |
   |
LL | pub struct Ptr5<'a, #[pointee] T: ?Sized, X>
   |                     ^^^^^^^^^^ - not a function definition
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/deriving/smart-pointer-bounds-issue-127647.rs:61:21
   |
   |
LL | pub struct Ptr6<'a, #[pointee] T: ?Sized, X: MyTrait<T> = (), const PARAM: usize = 0> {
   |                     ^^^^^^^^^^ - not a function definition
error: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/deriving/smart-pointer-bounds-issue-127647.rs:69:20
   |
   |
LL | pub struct ListArc<#[pointee] T, const ID: u64 = 0>
   |                    ^^^^^^^^^^ - not a function definition
error: aborting due to 7 previous errors
------------------------------------------



---- [ui] tests/ui/feature-gates/feature-gate-derive-smart-pointer.rs stdout ----
diff of stderr:

18    = help: add `#![feature(derive_smart_pointer)]` to the crate attributes to enable
19    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
+ error: attribute should be applied to a function definition
+   --> $DIR/feature-gate-derive-smart-pointer.rs:5:22
+    |
+    |
+ LL | struct MyPointer<'a, #[pointee] T: ?Sized> {
+    |                      ^^^^^^^^^^ - not a function definition
21 error[E0658]: use of unstable library feature 'derive_smart_pointer'
22   --> $DIR/feature-gate-derive-smart-pointer.rs:1:5
23    |


28    = help: add `#![feature(derive_smart_pointer)]` to the crate attributes to enable
29    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
- error: aborting due to 3 previous errors
+ error: aborting due to 4 previous errors
32 
33 For more information about this error, try `rustc --explain E0658`.
---
To only update this specific test, also pass `--test-args feature-gates/feature-gate-derive-smart-pointer.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/feature-gates/feature-gate-derive-smart-pointer.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=x86_64-unknown-linux-gnu" "--check-cfg" "cfg(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/feature-gates/feature-gate-derive-smart-pointer" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/feature-gates/feature-gate-derive-smart-pointer/auxiliary"
--- stderr -------------------------------
error[E0658]: use of unstable library feature 'derive_smart_pointer'
##[error]  --> /checkout/tests/ui/feature-gates/feature-gate-derive-smart-pointer.rs:3:10
   |
   |
LL | #[derive(SmartPointer)] //~ ERROR use of unstable library feature 'derive_smart_pointer'
   |
   = note: see issue #123430 <https://github.com/rust-lang/rust/issues/123430> for more information
   = help: add `#![feature(derive_smart_pointer)]` to the crate attributes to enable
   = help: add `#![feature(derive_smart_pointer)]` 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[E0658]: the `#[pointee]` attribute is an experimental feature
   |
   |
LL | struct MyPointer<'a, #[pointee] T: ?Sized> {
   |
   = note: see issue #123430 <https://github.com/rust-lang/rust/issues/123430> for more information
   = help: add `#![feature(derive_smart_pointer)]` to the crate attributes to enable
   = help: add `#![feature(derive_smart_pointer)]` 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: attribute should be applied to a function definition
##[error]  --> /checkout/tests/ui/feature-gates/feature-gate-derive-smart-pointer.rs:5:22
   |
   |
LL | struct MyPointer<'a, #[pointee] T: ?Sized> {
   |                      ^^^^^^^^^^ - not a function definition
error[E0658]: use of unstable library feature 'derive_smart_pointer'
##[error]  --> /checkout/tests/ui/feature-gates/feature-gate-derive-smart-pointer.rs:1:5
   |
   |
LL | use std::marker::SmartPointer; //~ ERROR use of unstable library feature 'derive_smart_pointer'
   |
   = note: see issue #123430 <https://github.com/rust-lang/rust/issues/123430> for more information
   = help: add `#![feature(derive_smart_pointer)]` to the crate attributes to enable
   = help: add `#![feature(derive_smart_pointer)]` 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 4 previous errors

For more information about this error, try `rustc --explain E0658`.
------------------------------------------

[bors]

☔ The latest upstream changes (presumably #128672) made this pull request unmergeable. Please resolve the merge conflicts.

[Darksonn]

@rustbot label F-derive_smart_pointer

[Darksonn]

Possible duplicate of #128721.

[gangov]

duplicate, closing