error: cross-crate traits with a default impl, like `Send`, should not be specialized --> $DIR/suspicious-impls-lint.rs:9:1 | LL | unsafe impl<T: Send> Send for MayImplementSendErr<&T> {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = warning: this will change its meaning in a future release! = note: for more information, see issue #93367 <https://github.com/rust-lang/rust/issues/93367> = note: `&T` is not a generic parameter note: try using the same sequence of generic parameters as the struct definition --> $DIR/suspicious-impls-lint.rs:8:1 | LL | struct MayImplementSendErr<T>(T); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: the lint level is defined here --> $DIR/suspicious-impls-lint.rs:1:9 | LL | #![deny(suspicious_auto_trait_impls)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: cross-crate traits with a default impl, like `Send`, should not be specialized --> $DIR/suspicious-impls-lint.rs:21:1 | LL | unsafe impl Send for ContainsVec<i32> {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = warning: this will change its meaning in a future release! = note: for more information, see issue #93367 <https://github.com/rust-lang/rust/issues/93367> = note: `i32` is not a generic parameter note: try using the same sequence of generic parameters as the struct definition --> $DIR/suspicious-impls-lint.rs:20:1 | LL | struct ContainsVec<T>(Vec<T>); | ^^^^^^^^^^^^^^^^^^^^^ error: cross-crate traits with a default impl, like `Send`, should not be specialized --> $DIR/suspicious-impls-lint.rs:32:1 | LL | unsafe impl<T: Send> Send for TwoParamsSame<T, T> {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = warning: this will change its meaning in a future release! = note: for more information, see issue #93367 <https://github.com/rust-lang/rust/issues/93367> = note: `T` is mentioned multiple times note: try using the same sequence of generic parameters as the struct definition --> $DIR/suspicious-impls-lint.rs:31:1 | LL | struct TwoParamsSame<T, U>(T, U); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ error: cross-crate traits with a default impl, like `Send`, should not be specialized --> $DIR/suspicious-impls-lint.rs:40:1 | LL | unsafe impl<T> Send for WithPhantomDataSend<*const T, i8> {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = warning: this will change its meaning in a future release! = note: for more information, see issue #93367 <https://github.com/rust-lang/rust/issues/93367> = note: `*const T` is not a generic parameter note: try using the same sequence of generic parameters as the struct definition --> $DIR/suspicious-impls-lint.rs:39:1 | LL | pub struct WithPhantomDataSend<T, U>(PhantomData<T>, U); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: cross-crate traits with a default impl, like `Sync`, should not be specialized --> $DIR/suspicious-impls-lint.rs:46:1 | LL | unsafe impl<T> Sync for WithLifetime<'static, Vec<T>> {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = warning: this will change its meaning in a future release! = note: for more information, see issue #93367 <https://github.com/rust-lang/rust/issues/93367> = note: `Vec<T>` is not a generic parameter note: try using the same sequence of generic parameters as the struct definition --> $DIR/suspicious-impls-lint.rs:44:1 | LL | pub struct WithLifetime<'a, T>(&'a (), T); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to 5 previous errors