Cargo supply chain crashes on Windows with "could not find `BaseDirectories` in `xdg`"

[Ygg01]

Environment

Info	My environment
OS	Windows 10
Rustc	rustc 1.88.0 (6b00bc388 2025-06-23)
Cargo	cargo 1.88.0 (873a06493 2025-05-10)

Steps to reproduce

1. Run cargo install cargo-supply-chain
2. Expected it to finish, instead got

error[E0433]: failed to resolve: could not find `BaseDirectories` in `xdg`                                                      
   --> C:\Users\_____\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\cargo-supply-chain-0.3.4\src\crates_cache.rs:116:14
    |
116 |         xdg::BaseDirectories::with_prefix("cargo-supply-chain")
    |              ^^^^^^^^^^^^^^^ could not find `BaseDirectories` in `xdg`

For more information about this error, try `rustc --explain E0433`.                                                             
error: could not compile `cargo-supply-chain` (bin "cargo-supply-chain") due to 1 previous error                                

[modinis76swear]

This worked last time.

[Shnatsel]

Could you try cargo install --locked --force cargo-supply-chain just to make sure it's not a regression in one of the dependencies?

[Ygg01]

Could you try cargo install --locked --force cargo-supply-chain just to make sure it's not a regression in one of the dependencies?

The error remains the same.

It seems that xdg::BaseDirectories doesn't exist for non-Unix OS.

[Ygg01]

In fact see whitequark/rust-xdg#28

[Shnatsel]

we should probably migrate to https://crates.io/crates/dirs