In 1.64 split-debuginfo = "unpacked" was ignored on Windows while in 1.65 it fails to build

[Yatekii]

Code

I tried this code:

[profile.dev]
split-debuginfo = "unpacked"

I expected to see this happen: The compilation on windows succeds but does not actually use the feature.

Instead, this happened: The compilation on windows lets me know this feature is unavailable.

Version it worked on

It most recently worked on: Rust 1.64

Version with regression

rustc --version --verbose:

rustc 1.65.0 (897e37553 2022-11-02)

This is the Cargo.toml in question: https://github.com/probe-rs/probe-rs/blob/master/Cargo.toml#L21.
This is the CI pipeline that started to fail with th 1.65 release: https://github.com/probe-rs/probe-rs/actions/runs/3390410063/jobs/5634519715

I am not sure if this would be a cargo or rustc issue. Pardon my ignorance.

Best,
Noah

[kpreid]

I hit this in my CI too.

Here are some other (not Windows-specific) reports of new failures when using split-debuginfo: #100657, #103932

[Jules-Bertholet]

@rustbot label -regression-untriaged +regression-from-stable-to-stable