`pin-utils` is unmaintained

The [upstream repository] was archived on October 1, 2026, after the
release of version 0.1.1.

For local pinning, replace `pin_mut!` with [`core::pin::pin!`], available
since Rust 1.68. For pin projection, replace `unsafe_pinned!` and
`unsafe_unpinned!` with [`pin-project`] or [`pin-project-lite`].

[upstream repository]: https://github.com/rust-lang/pin-utils
[`core::pin::pin!`]: https://doc.rust-lang.org/core/pin/macro.pin.html
[`pin-project`]: https://crates.io/crates/pin-project
[`pin-project-lite`]: https://crates.io/crates/pin-project-lite