Rollup of 5 pull requests #81035
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Rollup of 5 pull requests #81035
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Fixes rust-lang#80233 We already have logic in `evaluate_predicates` that tries to add unimplemented predicates to our `ParamEnv`. Trying to add a predicate that already holds can lead to errors later on, since projection will prefer trait candidates from the `ParamEnv` to predicates from an impl.
…=estebank Don't try to add nested predicate to Rustdoc auto-trait `ParamEnv` Fixes rust-lang#80233 We already have logic in `evaluate_predicates` that tries to add unimplemented predicates to our `ParamEnv`. Trying to add a predicate that already holds can lead to errors later on, since projection will prefer trait candidates from the `ParamEnv` to predicates from an impl.
Remove unreachable panics from VecDeque::{front/back}[_mut]
`VecDeque`'s `front`, `front_mut`, `back` and `back_mut` methods are implemented in terms of the index operator, which causes these functions to contain [unreachable panic calls](https://rust.godbolt.org/z/MTnq1o).
This PR reimplements these methods in terms of `get[_mut]` instead.
Use Option::map_or instead of `.map(..).unwrap_or(..)` ``@rustbot`` modify labels +C-cleanup +T-compiler
…ndry Don't ICE when computing a layout of a generator tainted by errors Fixes rust-lang#80998.
… r=jyn514 Remove doctree::Variant This was easy, probably was missed when whatever used it was removed
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@bors r+ p=5 rollup=never |
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📌 Commit 7286be1 has been approved by |
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☀️ Test successful - checks-actions |
This was referenced Jan 15, 2021
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Successful merges:
ParamEnv#80254 (Don't try to add nested predicate to Rustdoc auto-traitParamEnv).map(..).unwrap_or(..)#80944 (Use Option::map_or instead of.map(..).unwrap_or(..))Failed merges:
clean::Variantstruct #81033 (Remove uselessclean::Variantstruct)r? @ghost
@rustbot modify labels: rollup
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