error[E0658]: trait bounds other than Sized on const fn parameters are unstable

[ArunGust]

Compile error

Compiling crossbeam-epoch v0.9.8
error[E0658]: trait bounds other than Sized on const fn parameters are unstable
--> C:\SYSTEM\RUST\CARGO\registry\src\github.com-1ecc6299db9ec823\crossbeam-epoch-0.9.8\src\atomic.rs:314:6
|
314 | impl<T: ?Sized + Pointable> Atomic {
| ^
...
346 | pub const fn null() -> Atomic {
| -------------------------------- function declared as const here
|
= note: see issue #93706 rust-lang/rust#93706 for more information
= help: add #![feature(const_fn_trait_bound)] to the crate attributes to enable

For more information about this error, try rustc --explain E0658.
error: could not compile crossbeam-epoch due to previous error
warning: build failed, waiting for other jobs to finish...
error: build failed

[taiki-e]

This can be fixed by using nightly-2022-03-08 or later.

There is no guarantee that crossbeam can be compiled with the old nightly compiler, so I'm going to close this.

[Aidiakapi]

This is incredibly annoying, because these nightly versions are currently having various components broken.

[taiki-e]

Users of the old nightly toolchains can downgrade crossbeam-epoch.

cargo update -p crossbeam-epoch:0.9.8 --precise 0.9.7