Builds on Windows with the Beta branch are broken

[redfire75369]

It's very similar to the issue in #327. rustc is unable to read the archive file.

Action Report on spiderfire: https://github.com/Redfire75369/spiderfire/actions/runs/3860919044/jobs/6581558820
Action Report on mozjs: https://github.com/Redfire75369/mozjs/actions/runs/3861092537/jobs/6581850000

error: failed to add native library D:\a\mozjs\mozjs\target\debug\build\mozjs_sys-4062d5cd7cbc7110\out\build/js/src/build\js_static.lib: Unsupported archive identifier

This really seems to imply that something recent in the object crate is causing this.
It also seems likely that the reason the UWP builds were failing is because they were built with nightly.

[jdm]

Want to experiment with a local rustc build to test that theory?

[redfire75369]

I'll try with nightly, since I don't have a beta toolchain installed. Give me a while

[redfire75369]

I get exactly the same issue:

error: failed to add native library C:\Users\Redfire\software\github\mozjs\target\debug\build\mozjs_sys-9909ed28f55c17ac\out\build/js/src/build\js_static.lib: Unsupported archive identifier

Weird thing is dumpbin can't read it and neither can 7-zip

[sagudev]

I rerun CI on the branch where I scripted UWP CI support. The new build is failing so it's rust issue or something changed in GitHub actions hosting environment.

Here is original build: https://github.com/sagudev/mozjs/actions/runs/3516546682/jobs/5893248783
Here is failing build: https://github.com/sagudev/mozjs/actions/runs/3973814272/jobs/6812706164

[sagudev]

Hm, I noticed when doing diff between outputs that even though we have hard-coded nightly install we ste used latest nightly for the process. Now that I fixed it in UWP branch we still get some errors (on al windows targets but arm64-uwp). https://github.com/sagudev/mozjs/actions/runs/3973906984/jobs/6812850087

[sagudev]

I am currently doing bisection.
Last know working nightly: 2022-12-03.
First known broken nightly: 2022-12-04.

[sagudev]

I believe I found the problematic push in rust: rust-lang/rust#97485

[jdm]

Thank you for tracking that down! I have filed rust-lang/rust#107162.

[sagudev]

This was fixed in rust and we are using latest rust version for some time now.