cargo test --no-default-features fails: no longer possible to disable alloc feature?

[dancerj]

I've tried with multiple versions and it seems like test doesn't pass with out 'alloc' feature ? spot checked
4ce4dd3 and 185d613 and it seems like never passed.
CI config suggests this case wasn't covered?
Does anybody use non-alloc since alloc is no longer nightly?

$ rustc --version
rustc 1.63.0

$ rustc --version
rustc 1.48.0

$ cargo test --no-default-features

some snippets:

error[E0277]: the trait bound Arc<dyn Debug>: IntrusivePointer<_> is not satisfied
--> src/intrusive_pointer.rs:224:48
|
224 | let r = IntrusivePointer::into_raw(p);
| -------------------------- ^ expected an implementor of trait IntrusivePointer<_>
| |
| required by a bound introduced by this call
|
help: consider borrowing here
|
224 | let r = IntrusivePointer::into_raw(&p);
| +

error[E0277]: the trait bound Arc<dyn Debug>: IntrusivePointer<dyn Debug> is not satisfied
--> src/intrusive_pointer.rs:227:34
|
227 | let p2: Arc = IntrusivePointer::from_raw(r);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait IntrusivePointer<dyn Debug> is not implemented for Arc<dyn Debug>
|
= help: the following other types implement trait IntrusivePointer<T>:
&'a T
UnsafeRef

error[E0277]: the trait bound Rc<dyn Debug>: IntrusivePointer<_> is not satisfied
--> src/intrusive_pointer.rs:208:48
|
208 | let r = IntrusivePointer::into_raw(p);
| -------------------------- ^ expected an implementor of trait IntrusivePointer<_>
| |
| required by a bound introduced by this call
|
help: consider borrowing here
|
208 | let r = IntrusivePointer::into_raw(&p);
| +

error[E0277]: the trait bound Rc<dyn Debug>: IntrusivePointer<dyn Debug> is not satisfied
--> src/intrusive_pointer.rs:211:33
|
211 | let p2: Rc = IntrusivePointer::from_raw(r);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait IntrusivePointer<dyn Debug> is not implemented for Rc<dyn Debug>
|
= help: the following other types implement trait IntrusivePointer<T>:
&'a T
UnsafeRef

error[E0277]: the trait bound Box<dyn Debug>: IntrusivePointer<_> is not satisfied
--> src/intrusive_pointer.rs:192:48
|
192 | let r = IntrusivePointer::into_raw(p);
| -------------------------- ^ expected an implementor of trait IntrusivePointer<_>
| |
| required by a bound introduced by this call
|
help: consider borrowing here
|
192 | let r = IntrusivePointer::into_raw(&p);
| +

error[E0277]: the trait bound Box<dyn Debug>: IntrusivePointer<dyn Debug> is not satisfied
--> src/intrusive_pointer.rs:195:34
|
195 | let p2: Box = IntrusivePointer::from_raw(r);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait IntrusivePointer<dyn Debug> is not implemented for Box<dyn Debug>
|
= help: the following other types implement trait IntrusivePointer<T>:
&'a T
UnsafeRef

[Amanieu]

The tests were never designed to work without the alloc feature. We could add a check in CI that the crate builds (cargo check --no-default-features) though.