Jonathan Brouwer d42d8e0453 Rollup merge of #156146 - lqd:new-solver-ci-std, r=marcoieni
test new solver on CI until stabilization

We need the new solver to be able to build the stdlib, and this has regressed in the recent past. Things are broken right now, and we want to ensure this keeps working until stabilization later this year.

I've added this to the `x86_64-gnu-llvm-XX` job (note no `-1/2/3` suffix) so it's run on PR and auto CI, and because it's roughly the fastest of these builders, though maybe the aarch64 llvm 1 and 2 are slightly faster.

Building the stage 1 `./x build library/` is generally quite quick, a couple minutes at most.

The new solver fix to build std is from @lcnr [on zulip](https://rust-lang.zulipchat.com/#narrow/channel/364551-t-types.2Ftrait-system-refactor/topic/weekly.20sync.2Fupdates/near/591998234).
r? @marcoieni
2026-05-18 23:17:16 +02:00
2026-04-22 20:30:52 +08:00
2026-05-13 19:53:10 +02:00

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