jiebi/CodeConvo huggingface dataset:
Code change:
: <details<summaryerror output</summary</details
Rust playground:
Have you been able to reproduce this ICE with the latest nightly?
Playground link is not failing, I guess it's a good sign.
No longer ICEs since

Related discussion:
text: <ins> #![feature(generic_const_exprs, array_map)] #![allow(incomplete_features)] pub struct ConstCheck<const CHECK: bool>; pub trait True {} impl True for ConstCheck<true> {} pub trait OrdesDec { type Newlen; type Output; fn pop(self) -> (Self::Newlen, Self::Output); } impl<T, const N: usize> OrdesDec for [T; N] where ConstCheck<{N > 1}>: True, [T; N - 1]: Sized, { type Newlen = [T; N - 1]; type Output = T; fn pop(self) -> (Self::Newlen, Self::Output) { let mut iter = IntoIter::new(self); //~^ ERROR: failed to resolve: use of undeclared type `IntoIter` let end = iter.next_back().unwrap(); let new = [(); N - 1].map(move |()| iter.next().unwrap()); (new, end) } } fn main() {} </ins>
Code change:
: <details<summaryerror output</summary</details
Rust playground:
Have you been able to reproduce this ICE with the latest nightly?
Playground link is not failing, I guess it's a good sign.
No longer ICEs since

Related discussion:
text: <ins> error[E0433]: failed to resolve: use of undeclared type `IntoIter` --> $DIR/issue-82956.rs:25:24 | LL |         let mut iter = IntoIter::new(self); |                        ^^^^^^^^ not found in this scope | help: consider importing one of these items | LL | use std::array::IntoIter; | LL | use std::collections::binary_heap::IntoIter; | LL | use std::collections::btree_map::IntoIter; | LL | use std::collections::btree_set::IntoIter; | and 8 other candidates error: aborting due to previous error For more information about this error, try `rustc --explain E0433`. </ins>
Code change:
: <details<summaryerror output</summary</details
Rust playground:
Have you been able to reproduce this ICE with the latest nightly?
Playground link is not failing, I guess it's a good sign.
No longer ICEs since

Related discussion:
text: <ins> #![allow(incomplete_features)] #![feature(generic_const_exprs)] trait Bar<const N: usize> {} trait Foo<'a> { const N: usize; type Baz: Bar<{ Self::N }>; //~^ ERROR: unconstrained generic constant } fn main() {} </ins>
Code change:
: <details<summaryerror output</summary</details
Rust playground:
Have you been able to reproduce this ICE with the latest nightly?
Playground link is not failing, I guess it's a good sign.
No longer ICEs since

Related discussion:
text: <ins> error: unconstrained generic constant --> $DIR/issue-84659.rs:8:15 | LL |     type Baz: Bar<{ Self::N }>; |               ^^^^^^^^^^^^^^^^ | = help: try adding a `where` bound using this expression: `where [(); { Self::N }]:` error: aborting due to previous error </ins>
Code change:
: <details<summaryerror output</summary</details
Rust playground:
Have you been able to reproduce this ICE with the latest nightly?
Playground link is not failing, I guess it's a good sign.
No longer ICEs since

Related discussion:
text: <ins> #![feature(generic_const_exprs)] #![allow(incomplete_features)] pub trait X { const Y: usize; } fn z<T>(t: T) where T: X, [(); T::Y]: , { } fn unit_literals() { z(" "); //~^ ERROR: the trait bound `&str: X` is not satisfied } fn main() {} </ins>
Code change:
: <details<summaryerror output</summary</details
Rust playground:
Have you been able to reproduce this ICE with the latest nightly?
Playground link is not failing, I guess it's a good sign.
No longer ICEs since

Related discussion:
text: <ins> error[E0277]: the trait bound `&str: X` is not satisfied --> $DIR/issue-86530.rs:16:7 | LL |     z(" "); |       ^^^ the trait `X` is not implemented for `&str` | note: required by a bound in `z` --> $DIR/issue-86530.rs:10:8 | LL | fn z<T>(t: T) |    - required by a bound in this LL | where LL |     T: X, |        ^ required by this bound in `z` error: aborting due to previous error For more information about this error, try `rustc --explain E0277`. </ins>
Code change:
: <details<summaryerror output</summary</details
Rust playground:
Have you been able to reproduce this ICE with the latest nightly?
Playground link is not failing, I guess it's a good sign.
No longer ICEs since

Related discussion:
text: <ins> // run-pass #![feature(adt_const_params, generic_const_exprs)] #![allow(incomplete_features)] pub trait Foo { const ASSOC_C: usize; fn foo() where [(); Self::ASSOC_C]:; } struct Bar<const N: &'static ()>; impl<const N: &'static ()> Foo for Bar<N> { const ASSOC_C: usize = 3; fn foo() where [u8; Self::ASSOC_C]: { let _: [u8; Self::ASSOC_C] = loop {}; } } fn main() {} </ins>
Code change:
: <details<summaryerror output</summary</details
Rust playground:
Have you been able to reproduce this ICE with the latest nightly?
Playground link is not failing, I guess it's a good sign.
No longer ICEs since

Related discussion:
text: <ins> // run-pass #![feature(adt_const_params, generic_const_exprs)] #![allow(incomplete_features, unused_variables)] struct F<const S: &'static str>; impl<const S: &'static str> X for F<{ S }> { const W: usize = 3; fn d(r: &[u8; Self::W]) -> F<{ S }> { let x: [u8; Self::W] = [0; Self::W]; F } } pub trait X { const W: usize; fn d(r: &[u8; Self::W]) -> Self; } fn main() {} </ins>
Code change:
: <details<summaryerror output</summary</details
Rust playground:
Have you been able to reproduce this ICE with the latest nightly?
Playground link is not failing, I guess it's a good sign.
No longer ICEs since

Related discussion:
text: <ins> trait Trait<const N: usize> { const Assoc: usize; } impl<const N: usize> Trait<N> for () { const Assoc: usize = 1; } pub const fn foo<const N: usize>() where (): Trait<N> { let bar = [(); <()>::Assoc]; //~^ error: constant expression depends on a generic parameter } trait Trait2<const N: usize> { const Assoc2: usize; } impl<const N: usize> Trait2<N> for () { const Assoc2: usize = N - 1; } pub const fn foo2<const N: usize>() where (): Trait2<N> { let bar2 = [(); <()>::Assoc2]; //~^ error: constant expression depends on a generic parameter } fn main() { foo::<0>(); foo2::<0>(); } </ins>
Code change:
: <details<summaryerror output</summary</details
Rust playground:
Have you been able to reproduce this ICE with the latest nightly?
Playground link is not failing, I guess it's a good sign.
No longer ICEs since

Related discussion:
text: <ins> error: constant expression depends on a generic parameter --> $DIR/sneaky-array-repeat-expr.rs:11:20 | LL |     let bar = [(); <()>::Assoc]; |                    ^^^^^^^^^^^ | = note: this may fail depending on what value the parameter takes error: constant expression depends on a generic parameter --> $DIR/sneaky-array-repeat-expr.rs:25:21 | LL |     let bar2 = [(); <()>::Assoc2]; |                     ^^^^^^^^^^^^ | = note: this may fail depending on what value the parameter takes error: aborting due to 2 previous errors </ins>
Code change:
Given the following code: The current output is: Ideally the output should look like: Right now, cargo and rustc operate basically independently of each other. The summary ("aborting ..." and "could not compile ...") is repeated twice, and both have different, incompatible ways to get more info about what went wrong. There's no reason to repeat these twice; we could include all the same information in half the space if we can get cargo and rustc to cooperate. I suggest the way this be implemented is by keeping rustc's output the same when run standalone, but omitting "aborting due to ..." and "for more information ..." when run with . Then cargo can aggregate the info it used to print into its own errors by using the JSON output. cc (meta note: I thought of this while working on , which has fully 12 lines of "metadata" after the 5 line error. Most builds are not that bad in comparison, but I do think it shows that it needs support from all the tools in the stack to keep the verbosity down.)
I'm not sure whether making the decision on the error format scheme is the right way to go. I can't think of any reason not to do it, unless the implementation is messy, so

Related discussion:
text: pub mod c_str; pub mod os; pub mod path; <ins> pub mod path2; </ins> pub mod rand; pub mod run; pub mod sys;
Code change:
Compare to This is almost certainly caused by <!-- TRIAGEBOTSTART --<!-- TRIAGEBOTASSIGNSTART --<!-- TRIAGEBOTASSIGNDATASTARTTRIAGEBOTASSIGNDATAEND --<!-- TRIAGEBOTASSIGNEND --<!-- TRIAGEBOTEND --
claim

Related discussion:
text: } macro_rules! tool_doc { <del> ($tool: ident, $should_run: literal, $path: literal, [$($krate: literal),+ $(,)?] $(, binary=$bin:expr)?) => { </del> <ins> ($tool: ident, $should_run: literal, $path: literal, [$($krate: literal),+ $(,)?], binary=$bin:expr) => { </ins> #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)] pub struct $tool { stage: u32,
Code change:
Compare to This is almost certainly caused by <!-- TRIAGEBOTSTART --<!-- TRIAGEBOTASSIGNSTART --<!-- TRIAGEBOTASSIGNDATASTARTTRIAGEBOTASSIGNDATAEND --<!-- TRIAGEBOTASSIGNEND --<!-- TRIAGEBOTEND --
claim

Related discussion:
text: cargo.arg("-p").arg($krate); )+ <del> $(if !$bin { </del> <ins> if !$bin { </ins> cargo.rustdocflag("--document-private-items"); <del> })? </del> <ins> } </ins> cargo.rustdocflag("--enable-index-page"); cargo.rustdocflag("--show-type-layout"); cargo.rustdocflag("-Zunstable-options");
Code change:
Compare to This is almost certainly caused by <!-- TRIAGEBOTSTART --<!-- TRIAGEBOTASSIGNSTART --<!-- TRIAGEBOTASSIGNDATASTARTTRIAGEBOTASSIGNDATAEND --<!-- TRIAGEBOTASSIGNEND --<!-- TRIAGEBOTEND --
claim

Related discussion:
text: } } <del> tool_doc!(Rustdoc, "rustdoc-tool", "src/tools/rustdoc", ["rustdoc", "rustdoc-json-types"]); </del> <ins> tool_doc!( Rustdoc, "rustdoc-tool", "src/tools/rustdoc", ["rustdoc", "rustdoc-json-types"], binary = false ); </ins> tool_doc!( Rustfmt, "rustfmt-nightly",
Code change:
Ayu-only. The summary in the search results is now blue, when it used to be white. ! ! Ayu-only. The color of impls in Ayu has changed from white to yellow. This may be intentional, but it looked off when I saw it. Note that this happens for all impls, not just foreign impls. ! ! All themes. Certain auto-trait, foreign, unconditional impls have underlines. ! ! All themes. The phrase next to in the search results is now red in addition to itself being red, whereas used to be gray. ! ! All of the regressions seem to have occurred in beta (1.54.0).
Regression 3 is fixed in
Sending a fix for the three others.
Regressions 1 and 4 are fixed in .

Related discussion:
text: background: rgba(0, 0, 0, 0); } <del> code { </del> <ins> .docblock code { </ins> color: #ffb454; } h3 > code, h4 > code, h5 > code {
Code change:
Ayu-only. The summary in the search results is now blue, when it used to be white. ! ! Ayu-only. The color of impls in Ayu has changed from white to yellow. This may be intentional, but it looked off when I saw it. Note that this happens for all impls, not just foreign impls. ! ! All themes. Certain auto-trait, foreign, unconditional impls have underlines. ! ! All themes. The phrase next to in the search results is now red in addition to itself being red, whereas used to be gray. ! ! All of the regressions seem to have occurred in beta (1.54.0).
Regression 3 is fixed in
Sending a fix for the three others.
Regressions 1 and 4 are fixed in .

Related discussion:
text: <ins> // The ayu theme has a different color for the "<code>" tags in the doc blocks. We need to // check that the rule isn't applied on other "<code>" elements. goto: file://|DOC_PATH|/test_docs/enum.AnEnum.html // We need to show the text, otherwise the colors aren't "computed" by the web browser. show-text: true // We set the theme to ayu. local-storage: {"rustdoc-theme": "ayu", "rustdoc-preferred-dark-theme": "ayu", "rustdoc-use-system-theme": "false"} // We reload to get the text appearing and the theme applied. reload: assert-css: (".docblock code", {"color": "rgb(255, 180, 84)"}, ALL) // It includes variants and the "titles" as well (for example: "impl RefUnwindSafe for AnEnum"). assert-css: ("div:not(.docblock) > code", {"color": "rgb(197, 197, 197)"}, ALL) </ins>
Code change:
Ayu-only. The summary in the search results is now blue, when it used to be white. ! ! Ayu-only. The color of impls in Ayu has changed from white to yellow. This may be intentional, but it looked off when I saw it. Note that this happens for all impls, not just foreign impls. ! ! All themes. Certain auto-trait, foreign, unconditional impls have underlines. ! ! All themes. The phrase next to in the search results is now red in addition to itself being red, whereas used to be gray. ! ! All of the regressions seem to have occurred in beta (1.54.0).
Regression 3 is fixed in
Sending a fix for the three others.
Regressions 1 and 4 are fixed in .

Related discussion:
text: #[doc(cfg(unix))] pub fn replaced_function() {} <ins> /// Some doc with `code`! </ins> pub enum AnEnum { WithVariants { and: usize, sub: usize, variants: usize }, }
Code change:
This was reported by on Zulip: https://rust- Demo:
I think the fix should be as simple as using instead of as the type of - that will work regardless of whether or not the memory is initialized.
The other option is just removing the case entirely. Llvm is smart enough to turn that loop in the branch into a memset.
It does help the gcc codgen backend at least as it can't manage to produce a memset for u64 so I assume it would fail to do the same for u8 if it weren't for that specialization.
It also fails for the case:
It does call memset if you don't pass an array.
I'd think the intrinsic could easily have its type changed to take a , which would let one solve this problem. The stable function of course cannot be changed, though...
Reopening to track adding a test. (That's the standard procedure for this, isn't it?)
I would like to try working on adding the test, though this will be my first contribution so I'd need some guidance. I'm assuming this would be a miri test as it's related to correctness--may I DM you on Zulip? (or would someone else be more suitable?)
great. :) Miri runs the libcore test suite via So adding it as a test in libcore makes most sense, IMO.

Related discussion:
text: <del> use crate::mem::{size_of, transmute_copy}; use crate::ptr::write_bytes; </del> pub(super) trait SpecFill<T> { fn spec_fill(&mut self, value: T); }
Code change:
This was reported by on Zulip: https://rust- Demo:
I think the fix should be as simple as using instead of as the type of - that will work regardless of whether or not the memory is initialized.
The other option is just removing the case entirely. Llvm is smart enough to turn that loop in the branch into a memset.
It does help the gcc codgen backend at least as it can't manage to produce a memset for u64 so I assume it would fail to do the same for u8 if it weren't for that specialization.
It also fails for the case:
It does call memset if you don't pass an array.
I'd think the intrinsic could easily have its type changed to take a , which would let one solve this problem. The stable function of course cannot be changed, though...
Reopening to track adding a test. (That's the standard procedure for this, isn't it?)
I would like to try working on adding the test, though this will be my first contribution so I'd need some guidance. I'm assuming this would be a miri test as it's related to correctness--may I DM you on Zulip? (or would someone else be more suitable?)
great. :) Miri runs the libcore test suite via So adding it as a test in libcore makes most sense, IMO.

Related discussion:
text: impl<T: Copy> SpecFill<T> for [T] { fn spec_fill(&mut self, value: T) { <del> if size_of::<T>() == 1 { // SAFETY: The size_of check above ensures that values are 1 byte wide, as required // for the transmute and write_bytes unsafe { let value: u8 = transmute_copy(&value); write_bytes(self.as_mut_ptr(), value, self.len()); } } else { for item in self.iter_mut() { *item = value; } </del> <ins> for item in self.iter_mut() { *item = value; </ins> } } }
Code change:
This was reported by on Zulip: https://rust- Demo:
I think the fix should be as simple as using instead of as the type of - that will work regardless of whether or not the memory is initialized.
The other option is just removing the case entirely. Llvm is smart enough to turn that loop in the branch into a memset.
It does help the gcc codgen backend at least as it can't manage to produce a memset for u64 so I assume it would fail to do the same for u8 if it weren't for that specialization.
It also fails for the case:
It does call memset if you don't pass an array.
I'd think the intrinsic could easily have its type changed to take a , which would let one solve this problem. The stable function of course cannot be changed, though...
Reopening to track adding a test. (That's the standard procedure for this, isn't it?)
I would like to try working on adding the test, though this will be my first contribution so I'd need some guidance. I'm assuming this would be a miri test as it's related to correctness--may I DM you on Zulip? (or would someone else be more suitable?)
great. :) Miri runs the libcore test suite via So adding it as a test in libcore makes most sense, IMO.

Related discussion:
text: use core::cell::Cell; use core::cmp::Ordering; <ins> use core::mem::MaybeUninit; </ins> use core::result::Result::{Err, Ok}; #[test]
Code change:
This was reported by on Zulip: https://rust- Demo:
I think the fix should be as simple as using instead of as the type of - that will work regardless of whether or not the memory is initialized.
The other option is just removing the case entirely. Llvm is smart enough to turn that loop in the branch into a memset.
It does help the gcc codgen backend at least as it can't manage to produce a memset for u64 so I assume it would fail to do the same for u8 if it weren't for that specialization.
It also fails for the case:
It does call memset if you don't pass an array.
I'd think the intrinsic could easily have its type changed to take a , which would let one solve this problem. The stable function of course cannot be changed, though...
Reopening to track adding a test. (That's the standard procedure for this, isn't it?)
I would like to try working on adding the test, though this will be my first contribution so I'd need some guidance. I'm assuming this would be a miri test as it's related to correctness--may I DM you on Zulip? (or would someone else be more suitable?)
great. :) Miri runs the libcore test suite via So adding it as a test in libcore makes most sense, IMO.

Related discussion:
text: assert_eq!(x.get(), 1); } <ins> #[test] fn test_slice_fill_with_uninit() { // This should not UB. See #87891 let mut a = [MaybeUninit::<u8>::uninit(); 10]; a.fill(MaybeUninit::uninit()); } </ins>
Code change:
More information on
To be clear, I'm not actually sure that's a private link, I didn't look at it in detail. It might just be doc(hidden) or something.
I didn't either. Just that most of weird things happening are in .

Related discussion:
text: // of a macro that is not vendored by Rust and included in the toolchain. // See https://github.com/rust-analyzer/rust-analyzer/issues/6038. <ins> // On certain platforms right now the "main modules" modules that are // documented don't compile (missing things in `libc` which is empty), // so just omit them with an empty module and add the "unstable" attribute. // Unix, linux, wasi and windows are handled a bit differently. </ins> #[cfg(all( doc, <del> not(any( </del> <ins> any( </ins> all(target_arch = "wasm32", not(target_os = "wasi")), all(target_vendor = "fortanix", target_env = "sgx") <del> )) </del> <ins> ) </ins> ))] <del> #[path = "."] mod doc { // When documenting std we want to show the `unix`, `windows`, `linux` and `wasi` // modules as these are the "main modules" that are used across platforms, // so these modules are enabled when `cfg(doc)` is set. // This should help show platform-specific functionality in a hopefully cross-platform // way in the documentation. pub mod unix; pub mod linux; pub mod wasi; pub mod windows; } </del> <ins> #[unstable(issue = "none", feature = "std_internals")] pub mod unix {} </ins> #[cfg(all( doc, any(
Code change:
More information on
To be clear, I'm not actually sure that's a private link, I didn't look at it in detail. It might just be doc(hidden) or something.
I didn't either. Just that most of weird things happening are in .

Related discussion:
text: pub const PATH_BUF_AS_PATH: [&str; 4] = ["std", "path", "PathBuf", "as_path"]; pub const PATH_TO_PATH_BUF: [&str; 4] = ["std", "path", "Path", "to_path_buf"]; pub const PERMISSIONS: [&str; 3] = ["std", "fs", "Permissions"]; <del> pub const PERMISSIONS_FROM_MODE: [&str; 7] = ["std", "os", "imp", "unix", "fs", "PermissionsExt", "from_mode"]; </del> <ins> pub const PERMISSIONS_FROM_MODE: [&str; 6] = ["std", "os", "unix", "fs", "PermissionsExt", "from_mode"]; </ins> pub const POLL: [&str; 4] = ["core", "task", "poll", "Poll"]; pub const POLL_PENDING: [&str; 5] = ["core", "task", "poll", "Poll", "Pending"]; pub const POLL_READY: [&str; 5] = ["core", "task", "poll", "Poll", "Ready"];
Code change:
The following ICE was found migrating . cc which was very similar, but has been fixed. Also found in: - https://crater- <!-- If you're using the stable version of the compiler, you should also check if the bug also exists in the beta or nightly versions. --: <details<summary<strongBacktrace</strong</summary<p</p</details<!-- TRIAGEBOTSTART --<!-- TRIAGEBOTASSIGNSTART --<!-- TRIAGEBOTASSIGNDATASTARTTRIAGEBOTASSIGNDATAEND --<!-- TRIAGEBOTASSIGNEND --<!-- TRIAGEBOTEND --
cc
claim

Related discussion:
text: //! normal visitor, which just walks the entire body in one shot, the //! `ExprUseVisitor` determines how expressions are being used. <ins> use hir::def::DefKind; </ins> // Export these here so that Clippy can use them. pub use rustc_middle::hir::place::{Place, PlaceBase, PlaceWithHirId, Projection};
Code change:
The following ICE was found migrating . cc which was very similar, but has been fixed. Also found in: - https://crater- <!-- If you're using the stable version of the compiler, you should also check if the bug also exists in the beta or nightly versions. --: <details<summary<strongBacktrace</strong</summary<p</p</details<!-- TRIAGEBOTSTART --<!-- TRIAGEBOTASSIGNSTART --<!-- TRIAGEBOTASSIGNDATASTARTTRIAGEBOTASSIGNDATAEND --<!-- TRIAGEBOTASSIGNEND --<!-- TRIAGEBOTEND --
cc
claim

Related discussion:
text: use rustc_infer::infer::InferCtxt; use rustc_middle::hir::place::ProjectionKind; use rustc_middle::mir::FakeReadCause; <del> use rustc_middle::ty::{self, adjustment, TyCtxt}; </del> <ins> use rustc_middle::ty::{self, adjustment, Ty, TyCtxt}; </ins> use rustc_target::abi::VariantIdx; use std::iter;