Remove suspicious auto trait lint

8 files changed, 8 insertions, 216 deletions

diff --git a/tests/ui/auto-traits/issue-117789.rs b/tests/ui/auto-traits/issue-117789.rs
index 0c30931a1b5..63f796771db 100644
--- a/tests/ui/auto-traits/issue-117789.rs
+++ b/tests/ui/auto-traits/issue-117789.rs
@@ -1,5 +1,3 @@
-#![deny(suspicious_auto_trait_impls)]
-
 auto trait Trait<P> {} //~ ERROR auto traits cannot have generic parameters
 //~^ ERROR auto traits are experimental and possibly buggy
 impl<P> Trait<P> for () {}
diff --git a/tests/ui/auto-traits/issue-117789.stderr b/tests/ui/auto-traits/issue-117789.stderr
index 1f8880b1ef4..99efb213417 100644
--- a/tests/ui/auto-traits/issue-117789.stderr
+++ b/tests/ui/auto-traits/issue-117789.stderr
@@ -1,5 +1,5 @@
 error[E0567]: auto traits cannot have generic parameters
-  --> $DIR/issue-117789.rs:3:17
+  --> $DIR/issue-117789.rs:1:17
    |
 LL | auto trait Trait<P> {}
    |            -----^^^ help: remove the parameters
@@ -7,7 +7,7 @@ LL | auto trait Trait<P> {}
    |            auto trait cannot have generic parameters
 
 error[E0658]: auto traits are experimental and possibly buggy
-  --> $DIR/issue-117789.rs:3:1
+  --> $DIR/issue-117789.rs:1:1
    |
 LL | auto trait Trait<P> {}
    | ^^^^^^^^^^^^^^^^^^^^^^
diff --git a/tests/ui/auto-traits/issue-83857-ub.rs b/tests/ui/auto-traits/issue-83857-ub.rs
index f9b47d2b0c6..20abfdd851a 100644
--- a/tests/ui/auto-traits/issue-83857-ub.rs
+++ b/tests/ui/auto-traits/issue-83857-ub.rs
@@ -1,4 +1,3 @@
-#![allow(suspicious_auto_trait_impls)]
 // Tests that we don't incorrectly allow overlap between a builtin auto trait
 // impl and a user written one. See #83857 for more details
 
diff --git a/tests/ui/auto-traits/issue-83857-ub.stderr b/tests/ui/auto-traits/issue-83857-ub.stderr
index 6372bdfe762..20bfe7e36ca 100644
--- a/tests/ui/auto-traits/issue-83857-ub.stderr
+++ b/tests/ui/auto-traits/issue-83857-ub.stderr
@@ -1,12 +1,12 @@
 error[E0277]: `Foo<T, U>` cannot be sent between threads safely
-  --> $DIR/issue-83857-ub.rs:22:38
+  --> $DIR/issue-83857-ub.rs:21:38
    |
 LL | fn generic<T, U>(v: Foo<T, U>, f: fn(<Foo<T, U> as WithAssoc>::Output) -> i32) {
    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `Foo<T, U>` cannot be sent between threads safely
    |
    = help: the trait `Send` is not implemented for `Foo<T, U>`, which is required by `Foo<T, U>: WithAssoc`
 note: required for `Foo<T, U>` to implement `WithAssoc`
-  --> $DIR/issue-83857-ub.rs:15:15
+  --> $DIR/issue-83857-ub.rs:14:15
    |
 LL | impl<T: Send> WithAssoc for T {
    |         ----  ^^^^^^^^^     ^
@@ -18,7 +18,7 @@ LL | fn generic<T, U>(v: Foo<T, U>, f: fn(<Foo<T, U> as WithAssoc>::Output) -> i
    |                                                                                +++++++++++++++++++++
 
 error[E0277]: `Foo<T, U>` cannot be sent between threads safely
-  --> $DIR/issue-83857-ub.rs:22:80
+  --> $DIR/issue-83857-ub.rs:21:80
    |
 LL |   fn generic<T, U>(v: Foo<T, U>, f: fn(<Foo<T, U> as WithAssoc>::Output) -> i32) {
    |  ________________________________________________________________________________^
@@ -31,7 +31,7 @@ LL | | }
    |
    = help: the trait `Send` is not implemented for `Foo<T, U>`, which is required by `Foo<T, U>: WithAssoc`
 note: required for `Foo<T, U>` to implement `WithAssoc`
-  --> $DIR/issue-83857-ub.rs:15:15
+  --> $DIR/issue-83857-ub.rs:14:15
    |
 LL | impl<T: Send> WithAssoc for T {
    |         ----  ^^^^^^^^^     ^
@@ -43,7 +43,7 @@ LL | fn generic<T, U>(v: Foo<T, U>, f: fn(<Foo<T, U> as WithAssoc>::Output) -> i
    |                                                                                +++++++++++++++++++++
 
 error[E0277]: `Foo<T, U>` cannot be sent between threads safely
-  --> $DIR/issue-83857-ub.rs:25:11
+  --> $DIR/issue-83857-ub.rs:24:11
    |
 LL |     f(foo(v));
    |       --- ^ `Foo<T, U>` cannot be sent between threads safely
@@ -52,7 +52,7 @@ LL |     f(foo(v));
    |
    = help: the trait `Send` is not implemented for `Foo<T, U>`
 note: required by a bound in `foo`
-  --> $DIR/issue-83857-ub.rs:29:11
+  --> $DIR/issue-83857-ub.rs:28:11
    |
 LL | fn foo<T: Send>(x: T) -> <T as WithAssoc>::Output {
    |           ^^^^ required by this bound in `foo`
diff --git a/tests/ui/auto-traits/suspicious-impls-lint.rs b/tests/ui/auto-traits/suspicious-impls-lint.rs
deleted file mode 100644
index 7712e84f4a2..00000000000
--- a/tests/ui/auto-traits/suspicious-impls-lint.rs
+++ /dev/null
@@ -1,50 +0,0 @@
-#![deny(suspicious_auto_trait_impls)]
-
-use std::marker::PhantomData;
-
-struct MayImplementSendOk<T>(T);
-unsafe impl<T: Send> Send for MayImplementSendOk<T> {} // ok
-
-struct MayImplementSendErr<T>(T);
-unsafe impl<T: Send> Send for MayImplementSendErr<&T> {}
-//~^ ERROR
-//~| WARNING this will change its meaning
-
-struct ContainsNonSendDirect<T>(*const T);
-unsafe impl<T: Send> Send for ContainsNonSendDirect<&T> {} // ok
-
-struct ContainsPtr<T>(*const T);
-struct ContainsIndirectNonSend<T>(ContainsPtr<T>);
-unsafe impl<T: Send> Send for ContainsIndirectNonSend<&T> {} // ok
-
-struct ContainsVec<T>(Vec<T>);
-unsafe impl Send for ContainsVec<i32> {}
-//~^ ERROR
-//~| WARNING this will change its meaning
-
-struct TwoParams<T, U>(T, U);
-unsafe impl<T: Send, U: Send> Send for TwoParams<T, U> {} // ok
-
-struct TwoParamsFlipped<T, U>(T, U);
-unsafe impl<T: Send, U: Send> Send for TwoParamsFlipped<U, T> {} // ok
-
-struct TwoParamsSame<T, U>(T, U);
-unsafe impl<T: Send> Send for TwoParamsSame<T, T> {}
-//~^ ERROR
-//~| WARNING this will change its meaning
-
-pub struct WithPhantomDataNonSend<T, U>(PhantomData<*const T>, U);
-unsafe impl<T> Send for WithPhantomDataNonSend<T, i8> {} // ok
-
-pub struct WithPhantomDataSend<T, U>(PhantomData<T>, U);
-unsafe impl<T> Send for WithPhantomDataSend<*const T, i8> {}
-//~^ ERROR
-//~| WARNING this will change its meaning
-
-pub struct WithLifetime<'a, T>(&'a (), T);
-unsafe impl<T> Send for WithLifetime<'static, T> {} // ok
-unsafe impl<T> Sync for WithLifetime<'static, Vec<T>> {}
-//~^ ERROR
-//~| WARNING this will change its meaning
-
-fn main() {}
diff --git a/tests/ui/auto-traits/suspicious-impls-lint.stderr b/tests/ui/auto-traits/suspicious-impls-lint.stderr
deleted file mode 100644
index 9cd4e79f851..00000000000
--- a/tests/ui/auto-traits/suspicious-impls-lint.stderr
+++ /dev/null
@@ -1,82 +0,0 @@
-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
-
diff --git a/tests/ui/auto-traits/suspicious-negative-impls-lint.rs b/tests/ui/auto-traits/suspicious-negative-impls-lint.rs
deleted file mode 100644
index 34842e5944b..00000000000
--- a/tests/ui/auto-traits/suspicious-negative-impls-lint.rs
+++ /dev/null
@@ -1,21 +0,0 @@
-#![feature(negative_impls)]
-#![deny(suspicious_auto_trait_impls)]
-
-use std::marker::PhantomData;
-
-struct ContainsVec<T>(Vec<T>);
-impl !Send for ContainsVec<u32> {}
-//~^ ERROR
-//~| WARNING this will change its meaning
-
-pub struct WithPhantomDataSend<T, U>(PhantomData<T>, U);
-impl<T> !Send for WithPhantomDataSend<*const T, u8> {}
-//~^ ERROR
-//~| WARNING this will change its meaning
-
-pub struct WithLifetime<'a, T>(&'a (), T);
-impl<T> !Sync for WithLifetime<'static, Option<T>> {}
-//~^ ERROR
-//~| WARNING this will change its meaning
-
-fn main() {}
diff --git a/tests/ui/auto-traits/suspicious-negative-impls-lint.stderr b/tests/ui/auto-traits/suspicious-negative-impls-lint.stderr
deleted file mode 100644
index ee03ea12557..00000000000
--- a/tests/ui/auto-traits/suspicious-negative-impls-lint.stderr
+++ /dev/null
@@ -1,52 +0,0 @@
-error: cross-crate traits with a default impl, like `Send`, should not be specialized
-  --> $DIR/suspicious-negative-impls-lint.rs:7:1
-   |
-LL | impl !Send for ContainsVec<u32> {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = 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: `u32` is not a generic parameter
-note: try using the same sequence of generic parameters as the struct definition
-  --> $DIR/suspicious-negative-impls-lint.rs:6:1
-   |
-LL | struct ContainsVec<T>(Vec<T>);
-   | ^^^^^^^^^^^^^^^^^^^^^
-note: the lint level is defined here
-  --> $DIR/suspicious-negative-impls-lint.rs:2:9
-   |
-LL | #![deny(suspicious_auto_trait_impls)]
-   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-error: cross-crate traits with a default impl, like `Send`, should not be specialized
-  --> $DIR/suspicious-negative-impls-lint.rs:12:1
-   |
-LL | impl<T> !Send for WithPhantomDataSend<*const T, u8> {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = 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-negative-impls-lint.rs:11:1
-   |
-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-negative-impls-lint.rs:17:1
-   |
-LL | impl<T> !Sync for WithLifetime<'static, Option<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: `Option<T>` is not a generic parameter
-note: try using the same sequence of generic parameters as the struct definition
-  --> $DIR/suspicious-negative-impls-lint.rs:16:1
-   |
-LL | pub struct WithLifetime<'a, T>(&'a (), T);
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-error: aborting due to 3 previous errors
-