Rollup of 8 pull requests

[frewsxcv]

• Successful merges: Introduce 'run-pass' header to 'ui' tests in compiletest. Fix issue #36516. #41968, Lower ? to Try instead of Carrier #42275, rustdoc: Cleanup associated const value rendering #42286, Upgrade ProjectionTy's Name to a DefId #42297, New error codes next #42302, Add the RLS to .exe, .msi, and .pkg installers #42306, ARMv5 needs +strict-align #42314, associated_consts: check trait obligations and regionck for associated consts #42324
• Failed merges:

[rust-highfive]

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[frewsxcv]

@bors r+ p=10

[bors]

📌 Commit 7d99b09 has been approved by frewsxcv

[bors]

⌛ Testing commit 7d99b09 with merge a2b9d82...

[bors]

💔 Test failed - status-travis