Compile error in recent nightly version

[zhangxuan2011]

In recent of Rust compiler (2026-07-09), if we compile this crate, it will report this error:

    Checking x86_64 v0.15.4
error[E0046]: not all trait items implemented, missing: `forward_overflowing`, `backward_overflowing`
   --> /home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/x86_64-0.15.4/src/addr.rs:474:1
    |
474 | impl Step for VirtAddr {
    | ^^^^^^^^^^^^^^^^^^^^^^ missing `forward_overflowing`, `backward_overflowing` in implementation
    |
    = help: implement the missing item: `fn forward_overflowing(_: Self, _: usize) -> (Self, bool) { todo!() }`
    = help: implement the missing item: `fn backward_overflowing(_: Self, _: usize) -> (Self, bool) { todo!() }`

error[E0046]: not all trait items implemented, missing: `forward_overflowing`, `backward_overflowing`
   --> /home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/x86_64-0.15.4/src/structures/paging/page.rs:306:1
    |
306 | impl<S: PageSize> Step for Page<S> {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `forward_overflowing`, `backward_overflowing` in implementation
    |
    = help: implement the missing item: `fn forward_overflowing(_: Self, _: usize) -> (Self, bool) { todo!() }`
    = help: implement the missing item: `fn backward_overflowing(_: Self, _: usize) -> (Self, bool) { todo!() }`

error[E0046]: not all trait items implemented, missing: `forward_overflowing`, `backward_overflowing`
   --> /home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/x86_64-0.15.4/src/structures/paging/page_table.rs:374:1
    |
374 | impl Step for PageTableIndex {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `forward_overflowing`, `backward_overflowing` in implementation
    |
    = help: implement the missing item: `fn forward_overflowing(_: Self, _: usize) -> (Self, bool) { todo!() }`
    = help: implement the missing item: `fn backward_overflowing(_: Self, _: usize) -> (Self, bool) { todo!() }`

Yes, a compile error. So that means i cannot compile this correctly in the latest compiler.

I checked the error, and looked up the official docs, the latest nightly added 2 required methods, which are called forward_overflowing and backward_overflowing, and current version doesn't adapt it.

Current worked version: 2026-07-07

That is critical. please fix this as quickly as possible.

[tpdenk]

When relying on nightly, it's always good to pin a nightly version.

You can do that by creating a rust-toolchain.toml file in your crate root with the following content:

[toolchain]
channel = "nightly-2026-07-08"

That should also fix your project.

[zhangxuan2011]

When relying on nightly, it's always good to pin a nightly version.

You can do that by creating a rust-toolchain.toml file in your crate root with the following content:

[toolchain]
channel = "nightly-2026-07-08"
That should also fix your project.

Yep, I did this just now, but i am using 2026-07-07 one, that might be a great resolution for now.

The most important one, is to adapt the latest nightly API. That's why I open this issue.

[zhangxuan2011]

Fixed by #595