Prevent duplicate caller bounds candidates by exposing default substs in Unevaluated#90266
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bors merged 2 commits intorust-lang:masterfrom Oct 26, 2021
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Prevent duplicate caller bounds candidates by exposing default substs in Unevaluated#90266bors merged 2 commits intorust-lang:masterfrom
bors merged 2 commits intorust-lang:masterfrom
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gj on figuring out the the issue isn't @bors r+ rollup |
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📌 Commit 0199a81 has been approved by |
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…askrgr Rollup of 4 pull requests Successful merges: - rust-lang#89581 (Add -Z no-unique-section-names to reduce ELF header bloat.) - rust-lang#90196 (Fix and extent ControlFlow `traverse_inorder` example) - rust-lang#90255 (:arrow_up: rust-analyzer) - rust-lang#90266 (Prevent duplicate caller bounds candidates by exposing default substs in Unevaluated) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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this PR fixes #90195 so we should probably backport this |
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[beta] backports - Fix assertion failures in OwnedHandle with windows_subsystem. rust-lang#88798 - Ensure that pushing empty path works as before on verbatim paths rust-lang#89665 - Feature gate + make must_not_suspend allow-by-default rust-lang#89826 - Only use clone3 when needed for pidfd rust-lang#89930 - Fix documentation header sizes rust-lang#90186 - Fixes incorrect handling of ADT's drop requirements rust-lang#90218 - Fix ICE when forgetting to Box a parameter to a Self::func call rust-lang#90221 - Prevent duplicate caller bounds candidates by exposing default substs in Unevaluated rust-lang#90266 - Update odht crate to 0.3.1 (big-endian bugfix) rust-lang#90403 - rustdoc: Go back to loading all external crates unconditionally rust-lang#90489 - Split doc_cfg and doc_auto_cfg features rust-lang#90502 - Apply adjustments for field expression even if inaccessible rust-lang#90508 - Warn for variables that are no longer captured rust-lang#90597 - Properly register text_direction_codepoint_in_comment lint. rust-lang#90626 - CI: Use ubuntu image to download openssl, curl sources, cacert.pem for x86 dist builds rust-lang#90457 - Android is not GNU rust-lang#90834 - Update llvm submodule rust-lang#90954 Additionally, this bumps the stage 0 compiler from beta to stable 1.56.1. r? `@Mark-Simulacrum`
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Fixes #89334
The changes introduced in #87280 allowed for "duplicate" caller bounds candidates to be assembled that only differed in their default substs having been "exposed" or not and resulted in an ambiguity error during trait selection. To fix this we expose the defaults substs during the creation of the ParamEnv.
r? @lcnr