CI: split x86_64-msvc-ext job

[MarcoIeni]

I'm splitting this job into two so that we can use free runners instead of large runners.

try-job: x86_64-msvc-ext
try-job: x86_64-msvc-ext3

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[MarcoIeni]

@bors try

[bors]

⌛ Trying commit 72ec288 with merge 8ad199b...

[bors]

☀️ Try build successful - checks-actions
Build commit: 8ad199b (8ad199b7aeebfb192b2783e893dc21a0d5af88a3)

[MarcoIeni]

trying again to check if there are cache misses somewhere.

[MarcoIeni]

@bors try

[bors]

⌛ Trying commit 72ec288 with merge 943ae67e679e84b9a5e8c398662783e1cefcba29...

[bors]

☀️ Try build successful - checks-actions
Build commit: 943ae67 (943ae67e679e84b9a5e8c398662783e1cefcba29)

[ChrisDenton]

Oh btw I would like to rejoin it with msvc-ext2. Splitting them was only intended to be a temporary hack. If we do want them split long term then there's hopefully a more principled way to do it.

[MarcoIeni]

We're trying to remove work from large runners, so I would prefer not joining the two jobs.
For example, I'm trying to split another job as well in #132721

If we do want them split long term then there's hopefully a more principled way to do it.

Yes, hopefully, I don't have a good solution. There's some discussion in zulip.

I asked the bootstrap team to hopefully find a better solution. I'm open to suggestions.

[MarcoIeni]

I have a question Chris, I see that the following env variables are different:

      HOST_TARGET: x86_64-pc-windows-msvc
      RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc --enable-lld --save-toolstates=/tmp/toolstate/toolstates.json
      DEPLOY_TOOLSTATES_JSON: toolstates-windows.json

should the second job have the same env variables as the first one? If not, why?

[MarcoIeni]

For the reviewer of this PR: I tried splitting the job because it took too long: 2h 52m

So I introduced a third job. Let's see how it goes!

[MarcoIeni]

@bors try

[bors]

⌛ Trying commit 395a386 with merge ee813ac...

[bors]

☀️ Try build successful - checks-actions
Build commit: ee813ac (ee813acbc208f312e5f18899fb6b5af67e31d3b5)

[MarcoIeni]

Nice, the timings look reasonable!