`rustc.exe -vV` didn't exit successfully (exit code: 0xc000007b) on `i686-pc-windows-gnu`

[tgross35]

I am seeing a new CI failure with the latest nightly rust version 1.86.0-nightly (43ca9d18e 2025-02-08):

 + cargo check -p libm --no-default-features
error: process didn't exit successfully: `C:\Users\runneradmin\.rustup\toolchains\nightly-i686-pc-windows-gnu\bin\rustc.exe -vV` (exit code: 0xc000007b)

rust version 1.86.0-nightly (43ca9d18e 2025-02-08) works correctly.

This happened attempting to build the libm crate; however, it looks like this is just failing to run rustc.exe -vV so it doesn't seem crate-specific. I am still investigating, some work at rust-lang/libm#506.

[tgross35]

Out of this range https://github.com/rust-lang/rust/pulls?page=1&q=is%3Apr+merged%3A2025-02-07..2025-02-09+is%3Aclosed+-label%3Arollup, #136588 seems like a possible candidate

[tgross35]

Zulip discussion https://rust-lang.zulipchat.com/#narrow/channel/122651-general/topic/Changes.20to.20i686-pc-windows-gnu

[tgross35]

Reproduces just running rustc -vV with an i686-pc-windows-gnu host toolchain.

@rustbot label -S-needs-repro