Adds regression test for #16223: fixed by NLL #49780
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ef8804b addressed rust-lang#30170 by rejecting huge alignments at the allocator API level, transforming a specific platform bug/limitation into an enforced API limitation on all platforms. This change essentially reverts that commit, and instead makes alloc() itself return AllocErr::Unsupported when receiving huge alignments. This was discussed in rust-lang#32838 (comment) and following.
Ideally I'd like to soon enable sccache for rustbuild itself and some of the stage0 tools, but for that to work we'll need some better Rust support than the pretty old version we were previously using!
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Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @kennytm (or someone else) soon. If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes. Please see the contribution instructions for more information. |
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Adds regression test for #16223 which NLL fixes.
The current downside of this test is that it uses the
#![feature(box_patterns)]and I haven't come up with a proper test that only uses the#![feature(nll)]- however, I don't know if this is even possible to test without#![feature(box_syntax)]or#![feature(box_patterns)].