Update to new bootstrap compiler

[Mark-Simulacrum]

r? @pietroalbini

[pietroalbini]

@bors r+

[bors]

📌 Commit ee20c205db5cec1002cd270cb00dcddff7e1942d has been approved by pietroalbini

[bors]

☔ The latest upstream changes (presumably #86272) made this pull request unmergeable. Please resolve the merge conflicts.

[bors]

🔒 Merge conflict

This pull request and the master branch diverged in a way that cannot be automatically merged. Please rebase on top of the latest master branch, and let the reviewer approve again.

How do I rebase?

Assuming self is your fork and upstream is this repository, you can resolve the conflict following these steps:

1. git checkout stage-step (switch to your branch)
2. git fetch upstream master (retrieve the latest master)
3. git rebase upstream/master -p (rebase on top of it)
4. Follow the on-screen instruction to resolve conflicts (check git status if you got lost).
5. git push self stage-step --force-with-lease (update this PR)

You may also read Git Rebasing to Resolve Conflicts by Drew Blessing for a short tutorial.

Please avoid the "Resolve conflicts" button on GitHub. It uses git merge instead of git rebase which makes the PR commit history more difficult to read.

Sometimes step 4 will complete without asking for resolution. This is usually due to difference between how Cargo.lock conflict is handled during merge and rebase. This is normal, and you should still perform step 5 to update this PR.

Error message

Auto-merging src/tools/compiletest/src/main.rs
CONFLICT (content): Merge conflict in src/tools/compiletest/src/main.rs
Removing src/doc/unstable-book/src/library-features/try-trait.md
Removing library/core/src/ops/try.rs
Automatic merge failed; fix conflicts and then commit the result.

[Mark-Simulacrum]

@bors r=pietroalbini

[bors]

📌 Commit 06661ba has been approved by pietroalbini

[bors]

⌛ Testing commit 06661ba with merge 6e0b554...

[bors]

☀️ Test successful - checks-actions
Approved by: pietroalbini
Pushing 6e0b554 to master...