Rollup of 7 pull requests #42336
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Rollup of 7 pull requests #42336
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This makes the size_hint from things like `take` more precise.
Clarify docs on implementing Into. This was suggested by @dtolnay in rust-lang#40380. This explicitly clarifies in what circumstances you should implement `Into` instead of `From`.
…matsakis Explain why a closure is `FnOnce` in closure errors. Issue: rust-lang#42065 @nikomatsakis Am I going the right direction with this? ~~I am stuck in a few bits:~~ ~~1. How to trace the code to get the upvar instead of the original variable's span?~~ ~~2. How to find the node id of the upvar where the move occured?~~
…komatsakis Clarify the docs for align_of and its variants It's okay to have unaligned raw pointers and then use `ptr::write_unaligned` and `ptr::read_unaligned`. However, using unaligned `&T` and `&mut T` would be undefined behavior. The current documentation seems to indicate that everything has to be aligned, but in reality only references do. This PR changes the text of docs accordingly. r? @sfackler
…ta, r=nikomatsakis Remove --crate-type=metadata deprecation warning Fixes rust-lang#38640
…crichton RangeFrom should have an infinite size_hint Before, ```rust (0..).take(4).size_hint() == (0, Some(4)) ``` With this change, ```rust (0..).take(4).size_hint() == (4, Some(4)) ```
fix links to "module-level documentation" see rust-lang#42267
…chenkov Parse macros named "default" correctly. Fixes rust-lang#42292.
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r? @eddyb (rust_highfive has picked a reviewer for you, use r? to override) |
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@bors r+ p=10 |
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📌 Commit 7f286a8 has been approved by |
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☀️ Test successful - status-appveyor, status-travis |
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FnOncein closure errors. #42196, Clarify the docs for align_of and its variants #42252, Remove --crate-type=metadata deprecation warning #42277, RangeFrom should have an infinite size_hint #42315, fix links to "module-level documentation" #42329, Parse macros named "default" correctly. #42330