Stabilize slice::element_offset
#150777
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Stabilize slice::element_offset
#150777
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Seems reasonable to split this out given the concern. @bors r+ rollup |
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Stabilize `slice::element_offset` related: rust-lang#145899 (comment) print error from EnzymeWrapper::get_or_init(sysroot) as a note r? @ZuseZ4 e.g. 1. when libEnzyme not found ```shell $ rustc +stage1 -Z autodiff=Enable -C lto=fat src/main.rs error: autodiff backend not found in the sysroot: failed to find a `libEnzyme-21` folder in the sysroot candidates: * /Volumes/WD_BLACK_SN850X_HS_1TB/rust-lang/rust/build/aarch64-apple-darwin/stage1/lib | = note: it will be distributed via rustup in the future ``` 2. when could not load libEnzyme successfully ```shell rustc +stage1 -Z autodiff=Enable -C lto=fat src/main.rs error: failed to load our autodiff backend: DlOpen { source: "dlopen(/Volumes/WD_BLACK_SN850X_HS_1TB/rust-lang/rust/build/aarch64-apple-darwin/stage1/lib/rustlib/aarch64-apple-darwin/lib/libEnzyme-21.dylib, 0x0005): tried: \'/Volumes/WD_BLACK_SN850X_HS_1TB/rust-lang/rust/build/aarch64-apple-darwin/stage1/lib/rustlib/aarch64-apple-darwin/lib/libEnzyme-21.dylib\' (slice is not valid mach-o file), \'/System/Volumes/Preboot/Cryptexes/OS/Volumes/WD_BLACK_SN850X_HS_1TB/rust-lang/rust/build/aarch64-apple-darwin/stage1/lib/rustlib/aarch64-apple-darwin/lib/libEnzyme-21.dylib\' (no such file), \'/Volumes/WD_BLACK_SN850X_HS_1TB/rust-lang/rust/build/aarch64-apple-darwin/stage1/lib/rustlib/aarch64-apple-darwin/lib/libEnzyme-21.dylib\' (slice is not valid mach-o file)" } ```
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Stabilize `slice::element_offset` In rust-lang#127273 I added a test and a FIXME comment pointing out how it does the wrong thing. In the next commit I fixed the problem but forgot to remove the FIXME comment, whoops.
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Stabilize `slice::element_offset` [slice::element_offset](https://doc.rust-lang.org/std/primitive.slice.html#method.element_offset) Partially stabilizes rust-lang#126769 (substr_range). [FCP completed](rust-lang#126769 (comment)) The other methods are [stalled because of the new range types](rust-lang#126769 (comment)), but this method doesn't use ranges.
This was referenced Jan 8, 2026
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Rollup of 6 pull requests Successful merges: - #150675 (MGCA: Support tuple expressions as direct const arguments) - #150696 (enrich error info when tries to dlopen Enzyme) - #150747 (tests/ui/runtime/on-broken-pipe/with-rustc_main.rs: Not needed so remove) - #150757 (Fix `alloc_error_handler` signature mismatch) - #150777 (Stabilize `slice::element_offset`) - #150791 (Remove out of date FIXME comment.) r? @ghost
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Rollup merge of #150777 - stabilize_elem_offset, r=jhpratt Stabilize `slice::element_offset` [slice::element_offset](https://doc.rust-lang.org/std/primitive.slice.html#method.element_offset) Partially stabilizes #126769 (substr_range). [FCP completed](#126769 (comment)) The other methods are [stalled because of the new range types](#126769 (comment)), but this method doesn't use ranges.
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slice::element_offset
Partially stabilizes #126769 (substr_range).
FCP completed
The other methods are stalled because of the new range types, but this method doesn't use ranges.
@rustbot label +relnotes