make writes_through_immutable_pointer a hard error#129199
make writes_through_immutable_pointer a hard error#129199bors merged 1 commit intorust-lang:masterfrom
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…inter, r=<try> make writes_through_immutable_pointer a hard error This turns the lint added in rust-lang#118324 into a hard error. This has been reported in cargo's future-compat reports since Rust 1.76 (released in February). Given that const_mut_refs is still unstable, it should be impossible to even hit this error on stable: we did accidentally stabilize some functions that can cause this error, but that got reverted in rust-lang#117905. Still, let's do a crater run just to be sure. Given that this should only affect unstable code, I don't think it needs an FCP, but let's Cc `@rust-lang/lang` anyway -- any objection to making this unambiguous UB into a hard error during const-eval? This can be viewed as part of rust-lang#129195 which is already nominated for discussion.
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i'm happy to approve this if crater results are unremarkable. I agree that if the lint is truly unreachable on stable, then it doesn't need to be FCP'd.
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We have one
That's on them for adding `deny(renamed_and_removed_lints), they are basically asking to have breaking changes. 🤷 The rest seems spurious. :) @bors r=compiler-errors |
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Let's try rerunning crater to see if the strange spurious errors reproduce. @craterbot run mode=check-only crates=https://crater-reports.s3.amazonaws.com/pr-129199/retry-regressed-list.txt p=1 |
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👌 Experiment ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more |
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🚧 Experiment ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more |
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🎉 Experiment
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…pointer, r=compiler-errors make writes_through_immutable_pointer a hard error This turns the lint added in rust-lang#118324 into a hard error. This has been reported in cargo's future-compat reports since Rust 1.76 (released in February). Given that const_mut_refs is still unstable, it should be impossible to even hit this error on stable: we did accidentally stabilize some functions that can cause this error, but that got reverted in rust-lang#117905. Still, let's do a crater run just to be sure. Given that this should only affect unstable code, I don't think it needs an FCP, but let's Cc `@rust-lang/lang` anyway -- any objection to making this unambiguous UB into a hard error during const-eval? This can be viewed as part of rust-lang#129195 which is already nominated for discussion.
…iaskrgr Rollup of 10 pull requests Successful merges: - rust-lang#128596 (stabilize const_fn_floating_point_arithmetic) - rust-lang#129199 (make writes_through_immutable_pointer a hard error) - rust-lang#129246 (Retroactively feature gate `ConstArgKind::Path`) - rust-lang#129290 (Pin `cc` to 1.0.105) - rust-lang#129323 (Implement `ptr::fn_addr_eq`) - rust-lang#129500 (remove invalid `TyCompat` relation for effects) - rust-lang#129501 (panicking: improve hint for Miri's RUST_BACKTRACE behavior) - rust-lang#129505 (interpret: ImmTy: tighten sanity checks in offset logic) - rust-lang#129509 (Add a hack to workaround MSVC CI issues) - rust-lang#129510 (Fix `elided_named_lifetimes` in code) r? `@ghost` `@rustbot` modify labels: rollup
…iaskrgr Rollup of 9 pull requests Successful merges: - rust-lang#128596 (stabilize const_fn_floating_point_arithmetic) - rust-lang#129199 (make writes_through_immutable_pointer a hard error) - rust-lang#129246 (Retroactively feature gate `ConstArgKind::Path`) - rust-lang#129290 (Pin `cc` to 1.0.105) - rust-lang#129323 (Implement `ptr::fn_addr_eq`) - rust-lang#129500 (remove invalid `TyCompat` relation for effects) - rust-lang#129501 (panicking: improve hint for Miri's RUST_BACKTRACE behavior) - rust-lang#129505 (interpret: ImmTy: tighten sanity checks in offset logic) - rust-lang#129510 (Fix `elided_named_lifetimes` in code) r? `@ghost` `@rustbot` modify labels: rollup
…iaskrgr Rollup of 9 pull requests Successful merges: - rust-lang#128596 (stabilize const_fn_floating_point_arithmetic) - rust-lang#129199 (make writes_through_immutable_pointer a hard error) - rust-lang#129246 (Retroactively feature gate `ConstArgKind::Path`) - rust-lang#129290 (Pin `cc` to 1.0.105) - rust-lang#129323 (Implement `ptr::fn_addr_eq`) - rust-lang#129500 (remove invalid `TyCompat` relation for effects) - rust-lang#129501 (panicking: improve hint for Miri's RUST_BACKTRACE behavior) - rust-lang#129505 (interpret: ImmTy: tighten sanity checks in offset logic) - rust-lang#129510 (Fix `elided_named_lifetimes` in code) r? `@ghost` `@rustbot` modify labels: rollup
…iaskrgr Rollup of 9 pull requests Successful merges: - rust-lang#128596 (stabilize const_fn_floating_point_arithmetic) - rust-lang#129199 (make writes_through_immutable_pointer a hard error) - rust-lang#129246 (Retroactively feature gate `ConstArgKind::Path`) - rust-lang#129290 (Pin `cc` to 1.0.105) - rust-lang#129323 (Implement `ptr::fn_addr_eq`) - rust-lang#129500 (remove invalid `TyCompat` relation for effects) - rust-lang#129501 (panicking: improve hint for Miri's RUST_BACKTRACE behavior) - rust-lang#129505 (interpret: ImmTy: tighten sanity checks in offset logic) - rust-lang#129510 (Fix `elided_named_lifetimes` in code) r? `@ghost` `@rustbot` modify labels: rollup
Rollup merge of rust-lang#129199 - RalfJung:writes_through_immutable_pointer, r=compiler-errors make writes_through_immutable_pointer a hard error This turns the lint added in rust-lang#118324 into a hard error. This has been reported in cargo's future-compat reports since Rust 1.76 (released in February). Given that const_mut_refs is still unstable, it should be impossible to even hit this error on stable: we did accidentally stabilize some functions that can cause this error, but that got reverted in rust-lang#117905. Still, let's do a crater run just to be sure. Given that this should only affect unstable code, I don't think it needs an FCP, but let's Cc ``@rust-lang/lang`` anyway -- any objection to making this unambiguous UB into a hard error during const-eval? This can be viewed as part of rust-lang#129195 which is already nominated for discussion.
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https://crater-reports.s3.amazonaws.com/pr-129199-1/full.html shows there were 24 crates tested... so probably just a bug in the queue display? |
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After completion we clean up the database entries, so 0/0 is expected. |

This turns the lint added in #118324 into a hard error. This has been reported in cargo's future-compat reports since Rust 1.76 (released in February). Given that const_mut_refs is still unstable, it should be impossible to even hit this error on stable: we did accidentally stabilize some functions that can cause this error, but that got reverted in #117905. Still, let's do a crater run just to be sure.
Given that this should only affect unstable code, I don't think it needs an FCP, but let's Cc @rust-lang/lang anyway -- any objection to making this unambiguous UB into a hard error during const-eval? This can be viewed as part of #129195 which is already nominated for discussion.