ci: updates for Rust 1.75

Author: davidhewitt

tests/ui/abi3_nativetype_inheritance.stderr

@@ -7,3 +7,17 @@ error[E0277]: the trait bound `PyDict: PyClass` is not satisfied
   = help: the trait `PyClass` is implemented for `TestClass`
   = note: required for `PyDict` to implement `PyClassBaseType`
   = note: this error originates in the attribute macro `pyclass` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error[E0277]: the trait bound `PyDict: PyClass` is not satisfied
+ --> tests/ui/abi3_nativetype_inheritance.rs:5:19
+  |
+5 | #[pyclass(extends=PyDict)]
+  |                   ^^^^^^ the trait `PyClass` is not implemented for `PyDict`
+  |
+  = help: the trait `PyClass` is implemented for `TestClass`
+  = note: required for `PyDict` to implement `PyClassBaseType`
+note: required by a bound in `PyClassImpl::BaseType`
+ --> src/impl_/pyclass.rs
+  |
+  |     type BaseType: PyTypeInfo + PyClassBaseType;
+  |                                 ^^^^^^^^^^^^^^^ required by this bound in `PyClassImpl::BaseType`

tests/ui/pyclass_send.stderr

@@ -16,3 +16,24 @@ note: required by a bound in `SendablePyClass`
   | pub struct SendablePyClass<T: Send>(PhantomData<T>);
   |                               ^^^^ required by this bound in `SendablePyClass`
   = note: this error originates in the attribute macro `pyclass` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error[E0277]: `Rc<i32>` cannot be sent between threads safely
+ --> tests/ui/pyclass_send.rs:4:1
+  |
+4 | #[pyclass]
+  | ^^^^^^^^^^ `Rc<i32>` cannot be sent between threads safely
+  |
+  = help: within `NotThreadSafe`, the trait `Send` is not implemented for `Rc<i32>`
+  = help: the trait `pyo3::impl_::pyclass::PyClassThreadChecker<T>` is implemented for `SendablePyClass<T>`
+note: required because it appears within the type `NotThreadSafe`
+ --> tests/ui/pyclass_send.rs:5:8
+  |
+5 | struct NotThreadSafe {
+  |        ^^^^^^^^^^^^^
+  = note: required for `SendablePyClass<NotThreadSafe>` to implement `pyo3::impl_::pyclass::PyClassThreadChecker<NotThreadSafe>`
+note: required by a bound in `PyClassImpl::ThreadChecker`
+ --> src/impl_/pyclass.rs
+  |
+  |     type ThreadChecker: PyClassThreadChecker<Self>;
+  |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `PyClassImpl::ThreadChecker`
+  = note: this error originates in the attribute macro `pyclass` (in Nightly builds, run with -Z macro-backtrace for more info)