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merged 1 commit into from
Jun 11, 2025

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tgross35
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@tgross35 tgross35 commented Jun 6, 2025

Since 1, this will come automatically from rustc-std-workspace-core and the crates.io dependency should no longer be specified.

Since [1], this will come automatically from `rustc-std-workspace-core`
and the crates.io dependency should no longer be specified.

[1]: rust-lang/rust#141993
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tgross35 commented Jun 6, 2025

This needs to wait for rust-lang/rust#141993 to merge, like the other PRs there.

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BurntSushi commented Jun 6, 2025

Is there any risk of removing this causing memchr to stop working with older versions of Rust or stop working when building older versions of Rust? (I don't think so, but I wanted to ask. I think the reason why it will still work is that older versions should use older versions of memchr.)

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tgross35 commented Jun 6, 2025

Indeed, that's the tradeoff here - once a new version is published, that will prevent it from being used in older versions of Rust. This shouldn't be a problem because of the lockfile, but it does mean things would get a bit weird if we need to do something unusual like backport a memchr bump (which I don't foresee since the next beta bump is ~2 weeks away, hopefully this will all be merged by then, and then we'd only ever be backporting versions that do have this change).

matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Jun 8, 2025
…jorn3

Use the in-tree `compiler-builtins` for the sysroot

Many of `std`'s dependency have a dependency on the crates.io `compiler-builtins` when used with the feature `rustc-std-workspace-core`. Use a Cargo patch to select the in-tree version instead.

`compiler-builtins` is also added as a dependency of `rustc-std-workspace-core` so these crates can remove their crates.io dependency in the future.

Zulip discussion: [#t-compiler > Using in-tree compiler-builtins](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/Using.20in-tree.20compiler-builtins/with/522445336)

Once this merges, the following PRs will need to make it to a release for the relevant crates:

- rust-lang/getopts#119 (can merge at any time)
- rust-lang/hashbrown#625 (can merge at any time)
- rust-lang/stdarch#1825
- rust-lang/rustc-demangle#80
- rust-lang/cfg-if#84
- unicode-rs/unicode-width#77

The above should cover all tier 1 targets with no `std` features enabled. The remaining cover the rest:

- alexcrichton/dlmalloc-rs#50 (wasm, xous, sgx)
- gimli-rs/gimli#769
- r-efi/r-efi#89 (efi)
- r-efi/r-efi-alloc#9 (efi)
- fortanix/rust-sgx#770 (sgx)
- hermit-os/hermit-rs#718 (hermit)
- bytecodealliance/wasi-rs#108 (wasi)
- gimli-rs/addr2line#345
- oyvindln/adler2#2
- BurntSushi/memchr#180
- Frommi/miniz_oxide#173
- gimli-rs/object#777

try-job: dist-x86_64-linux
try-job: x86_64-gnu
try-job: x86_64-gnu-aux
try-job: test-various
rust-bors bot added a commit to rust-lang/rust that referenced this pull request Jun 8, 2025
Use the in-tree `compiler-builtins` for the sysroot

Many of `std`'s dependency have a dependency on the crates.io `compiler-builtins` when used with the feature `rustc-std-workspace-core`. Use a Cargo patch to select the in-tree version instead.

`compiler-builtins` is also added as a dependency of `rustc-std-workspace-core` so these crates can remove their crates.io dependency in the future.

Zulip discussion: [#t-compiler > Using in-tree compiler-builtins](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/Using.20in-tree.20compiler-builtins/with/522445336)

Once this merges, the following PRs will need to make it to a release for the relevant crates:

- rust-lang/getopts#119 (can merge at any time)
- rust-lang/hashbrown#625 (can merge at any time)
- rust-lang/stdarch#1825
- rust-lang/rustc-demangle#80
- rust-lang/cfg-if#84
- unicode-rs/unicode-width#77

The above should cover all tier 1 targets with no `std` features enabled. The remaining cover the rest:

- alexcrichton/dlmalloc-rs#50 (wasm, xous, sgx)
- gimli-rs/gimli#769
- r-efi/r-efi#89 (efi)
- r-efi/r-efi-alloc#9 (efi)
- fortanix/rust-sgx#770 (sgx)
- hermit-os/hermit-rs#718 (hermit)
- bytecodealliance/wasi-rs#108 (wasi)
- gimli-rs/addr2line#345
- oyvindln/adler2#2
- BurntSushi/memchr#180
- Frommi/miniz_oxide#173
- gimli-rs/object#777

try-job: dist-x86_64-linux
try-job: x86_64-gnu
try-job: x86_64-gnu-aux
try-job: test-various
try-job: `*android*`
bors added a commit to rust-lang/rust that referenced this pull request Jun 8, 2025
Use the in-tree `compiler-builtins` for the sysroot

Many of `std`'s dependency have a dependency on the crates.io `compiler-builtins` when used with the feature `rustc-std-workspace-core`. Use a Cargo patch to select the in-tree version instead.

`compiler-builtins` is also added as a dependency of `rustc-std-workspace-core` so these crates can remove their crates.io dependency in the future.

Zulip discussion: [#t-compiler > Using in-tree compiler-builtins](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/Using.20in-tree.20compiler-builtins/with/522445336)

Once this merges, the following PRs will need to make it to a release for the relevant crates:

- rust-lang/getopts#119 (can merge at any time)
- rust-lang/hashbrown#625 (can merge at any time)
- rust-lang/stdarch#1825
- rust-lang/rustc-demangle#80
- rust-lang/cfg-if#84
- unicode-rs/unicode-width#77

The above should cover all tier 1 targets with no `std` features enabled. The remaining cover the rest:

- alexcrichton/dlmalloc-rs#50 (wasm, xous, sgx)
- gimli-rs/gimli#769
- r-efi/r-efi#89 (efi)
- r-efi/r-efi-alloc#9 (efi)
- fortanix/rust-sgx#770 (sgx)
- hermit-os/hermit-rs#718 (hermit)
- bytecodealliance/wasi-rs#108 (wasi)
- gimli-rs/addr2line#345
- oyvindln/adler2#2
- BurntSushi/memchr#180
- Frommi/miniz_oxide#173
- gimli-rs/object#777

try-job: dist-x86_64-linux
try-job: x86_64-gnu
try-job: x86_64-gnu-aux
try-job: test-various
rust-bors bot added a commit to rust-lang/rust that referenced this pull request Jun 8, 2025
Use the in-tree `compiler-builtins` for the sysroot

Many of `std`'s dependency have a dependency on the crates.io `compiler-builtins` when used with the feature `rustc-std-workspace-core`. Use a Cargo patch to select the in-tree version instead.

`compiler-builtins` is also added as a dependency of `rustc-std-workspace-core` so these crates can remove their crates.io dependency in the future.

Zulip discussion: [#t-compiler > Using in-tree compiler-builtins](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/Using.20in-tree.20compiler-builtins/with/522445336)

Once this merges, the following PRs will need to make it to a release for the relevant crates:

- rust-lang/getopts#119 (can merge at any time)
- rust-lang/hashbrown#625 (can merge at any time)
- rust-lang/stdarch#1825
- rust-lang/rustc-demangle#80
- rust-lang/cfg-if#84
- unicode-rs/unicode-width#77

The above should cover all tier 1 targets with no `std` features enabled. The remaining cover the rest:

- alexcrichton/dlmalloc-rs#50 (wasm, xous, sgx)
- gimli-rs/gimli#769
- r-efi/r-efi#89 (efi)
- r-efi/r-efi-alloc#9 (efi)
- fortanix/rust-sgx#770 (sgx)
- hermit-os/hermit-rs#718 (hermit)
- bytecodealliance/wasi-rs#108 (wasi)
- gimli-rs/addr2line#345
- oyvindln/adler2#2
- BurntSushi/memchr#180
- Frommi/miniz_oxide#173
- gimli-rs/object#777

try-job: x86_64-gnu
try-job: test-various
try-job: `*various*`
rust-bors bot added a commit to rust-lang/rust that referenced this pull request Jun 9, 2025
Use the in-tree `compiler-builtins` for the sysroot

Many of `std`'s dependency have a dependency on the crates.io `compiler-builtins` when used with the feature `rustc-std-workspace-core`. Use a Cargo patch to select the in-tree version instead.

`compiler-builtins` is also added as a dependency of `rustc-std-workspace-core` so these crates can remove their crates.io dependency in the future.

Zulip discussion: [#t-compiler > Using in-tree compiler-builtins](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/Using.20in-tree.20compiler-builtins/with/522445336)

Once this merges, the following PRs will need to make it to a release for the relevant crates:

- rust-lang/getopts#119 (can merge at any time)
- rust-lang/hashbrown#625 (can merge at any time)
- rust-lang/stdarch#1825
- rust-lang/rustc-demangle#80
- rust-lang/cfg-if#84
- unicode-rs/unicode-width#77

The above should cover all tier 1 targets with no `std` features enabled. The remaining cover the rest:

- alexcrichton/dlmalloc-rs#50 (wasm, xous, sgx)
- gimli-rs/gimli#769
- r-efi/r-efi#89 (efi)
- r-efi/r-efi-alloc#9 (efi)
- fortanix/rust-sgx#770 (sgx)
- hermit-os/hermit-rs#718 (hermit)
- bytecodealliance/wasi-rs#108 (wasi)
- gimli-rs/addr2line#345
- oyvindln/adler2#2
- BurntSushi/memchr#180
- Frommi/miniz_oxide#173
- gimli-rs/object#777

try-job: x86_64-gnu
try-job: test-various
try-job: `*various*`
tgross35 added a commit to tgross35/rust that referenced this pull request Jun 9, 2025
…jorn3

Use the in-tree `compiler-builtins` for the sysroot

Many of `std`'s dependency have a dependency on the crates.io `compiler-builtins` when used with the feature `rustc-std-workspace-core`. Use a Cargo patch to select the in-tree version instead.

`compiler-builtins` is also added as a dependency of `rustc-std-workspace-core` so these crates can remove their crates.io dependency in the future.

Zulip discussion: [#t-compiler > Using in-tree compiler-builtins](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/Using.20in-tree.20compiler-builtins/with/522445336)

Once this merges, the following PRs will need to make it to a release for the relevant crates:

- rust-lang/getopts#119 (can merge at any time)
- rust-lang/hashbrown#625 (can merge at any time)
- rust-lang/stdarch#1825
- rust-lang/rustc-demangle#80
- rust-lang/cfg-if#84
- unicode-rs/unicode-width#77

The above should cover all tier 1 targets with no `std` features enabled. The remaining cover the rest:

- alexcrichton/dlmalloc-rs#50 (wasm, xous, sgx)
- gimli-rs/gimli#769
- r-efi/r-efi#89 (efi)
- r-efi/r-efi-alloc#9 (efi)
- fortanix/rust-sgx#770 (sgx)
- hermit-os/hermit-rs#718 (hermit)
- bytecodealliance/wasi-rs#108 (wasi)
- gimli-rs/addr2line#345
- oyvindln/adler2#2
- BurntSushi/memchr#180
- Frommi/miniz_oxide#173
- gimli-rs/object#777

try-job: x86_64-gnu
try-job: test-various
rust-timer added a commit to rust-lang/rust that referenced this pull request Jun 9, 2025
Rollup merge of #141993 - tgross35:use-in-tree-builtins, r=bjorn3

Use the in-tree `compiler-builtins` for the sysroot

Many of `std`'s dependency have a dependency on the crates.io `compiler-builtins` when used with the feature `rustc-std-workspace-core`. Use a Cargo patch to select the in-tree version instead.

`compiler-builtins` is also added as a dependency of `rustc-std-workspace-core` so these crates can remove their crates.io dependency in the future.

Zulip discussion: [#t-compiler > Using in-tree compiler-builtins](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/Using.20in-tree.20compiler-builtins/with/522445336)

Once this merges, the following PRs will need to make it to a release for the relevant crates:

- rust-lang/getopts#119 (can merge at any time)
- rust-lang/hashbrown#625 (can merge at any time)
- rust-lang/stdarch#1825
- rust-lang/rustc-demangle#80
- rust-lang/cfg-if#84
- unicode-rs/unicode-width#77

The above should cover all tier 1 targets with no `std` features enabled. The remaining cover the rest:

- alexcrichton/dlmalloc-rs#50 (wasm, xous, sgx)
- gimli-rs/gimli#769
- r-efi/r-efi#89 (efi)
- r-efi/r-efi-alloc#9 (efi)
- fortanix/rust-sgx#770 (sgx)
- hermit-os/hermit-rs#718 (hermit)
- bytecodealliance/wasi-rs#108 (wasi)
- gimli-rs/addr2line#345
- oyvindln/adler2#2
- BurntSushi/memchr#180
- Frommi/miniz_oxide#173
- gimli-rs/object#777

try-job: x86_64-gnu
try-job: test-various
@tgross35 tgross35 marked this pull request as ready for review June 9, 2025 21:40
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tgross35 commented Jun 9, 2025

The r-l/rust PR merged, @BurntSushi would it be possible to get this into a patch release in the next week or so?

tgross35 added a commit to tgross35/compiler-builtins that referenced this pull request Jun 9, 2025
Use the in-tree `compiler-builtins` for the sysroot

Many of `std`'s dependency have a dependency on the crates.io `compiler-builtins` when used with the feature `rustc-std-workspace-core`. Use a Cargo patch to select the in-tree version instead.

`compiler-builtins` is also added as a dependency of `rustc-std-workspace-core` so these crates can remove their crates.io dependency in the future.

Zulip discussion: [#t-compiler > Using in-tree compiler-builtins](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/Using.20in-tree.20compiler-builtins/with/522445336)

Once this merges, the following PRs will need to make it to a release for the relevant crates:

- rust-lang/getopts#119 (can merge at any time)
- rust-lang/hashbrown#625 (can merge at any time)
- rust-lang/stdarch#1825
- rust-lang/rustc-demangle#80
- rust-lang/cfg-if#84
- unicode-rs/unicode-width#77

The above should cover all tier 1 targets with no `std` features enabled. The remaining cover the rest:

- alexcrichton/dlmalloc-rs#50 (wasm, xous, sgx)
- gimli-rs/gimli#769
- r-efi/r-efi#89 (efi)
- r-efi/r-efi-alloc#9 (efi)
- fortanix/rust-sgx#770 (sgx)
- hermit-os/hermit-rs#718 (hermit)
- bytecodealliance/wasi-rs#108 (wasi)
- gimli-rs/addr2line#345
- oyvindln/adler2#2
- BurntSushi/memchr#180
- Frommi/miniz_oxide#173
- gimli-rs/object#777

try-job: x86_64-gnu
try-job: test-various
github-actions bot pushed a commit to rust-lang/miri that referenced this pull request Jun 10, 2025
Use the in-tree `compiler-builtins` for the sysroot

Many of `std`'s dependency have a dependency on the crates.io `compiler-builtins` when used with the feature `rustc-std-workspace-core`. Use a Cargo patch to select the in-tree version instead.

`compiler-builtins` is also added as a dependency of `rustc-std-workspace-core` so these crates can remove their crates.io dependency in the future.

Zulip discussion: [#t-compiler > Using in-tree compiler-builtins](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/Using.20in-tree.20compiler-builtins/with/522445336)

Once this merges, the following PRs will need to make it to a release for the relevant crates:

- rust-lang/getopts#119 (can merge at any time)
- rust-lang/hashbrown#625 (can merge at any time)
- rust-lang/stdarch#1825
- rust-lang/rustc-demangle#80
- rust-lang/cfg-if#84
- unicode-rs/unicode-width#77

The above should cover all tier 1 targets with no `std` features enabled. The remaining cover the rest:

- alexcrichton/dlmalloc-rs#50 (wasm, xous, sgx)
- gimli-rs/gimli#769
- r-efi/r-efi#89 (efi)
- r-efi/r-efi-alloc#9 (efi)
- fortanix/rust-sgx#770 (sgx)
- hermit-os/hermit-rs#718 (hermit)
- bytecodealliance/wasi-rs#108 (wasi)
- gimli-rs/addr2line#345
- oyvindln/adler2#2
- BurntSushi/memchr#180
- Frommi/miniz_oxide#173
- gimli-rs/object#777

try-job: x86_64-gnu
try-job: test-various
@BurntSushi BurntSushi merged commit 599d9d9 into BurntSushi:master Jun 11, 2025
17 checks passed
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This PR is on crates.io in memchr 2.7.5.

@tgross35
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Awesome, thank you!

@tgross35 tgross35 deleted the remove-compiler-builtins branch June 11, 2025 16:44
tautschnig pushed a commit to model-checking/verify-rust-std that referenced this pull request Jun 17, 2025
…jorn3

Use the in-tree `compiler-builtins` for the sysroot

Many of `std`'s dependency have a dependency on the crates.io `compiler-builtins` when used with the feature `rustc-std-workspace-core`. Use a Cargo patch to select the in-tree version instead.

`compiler-builtins` is also added as a dependency of `rustc-std-workspace-core` so these crates can remove their crates.io dependency in the future.

Zulip discussion: [#t-compiler > Using in-tree compiler-builtins](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/Using.20in-tree.20compiler-builtins/with/522445336)

Once this merges, the following PRs will need to make it to a release for the relevant crates:

- rust-lang/getopts#119 (can merge at any time)
- rust-lang/hashbrown#625 (can merge at any time)
- rust-lang/stdarch#1825
- rust-lang/rustc-demangle#80
- rust-lang/cfg-if#84
- unicode-rs/unicode-width#77

The above should cover all tier 1 targets with no `std` features enabled. The remaining cover the rest:

- alexcrichton/dlmalloc-rs#50 (wasm, xous, sgx)
- gimli-rs/gimli#769
- r-efi/r-efi#89 (efi)
- r-efi/r-efi-alloc#9 (efi)
- fortanix/rust-sgx#770 (sgx)
- hermit-os/hermit-rs#718 (hermit)
- bytecodealliance/wasi-rs#108 (wasi)
- gimli-rs/addr2line#345
- oyvindln/adler2#2
- BurntSushi/memchr#180
- Frommi/miniz_oxide#173
- gimli-rs/object#777

try-job: x86_64-gnu
try-job: test-various
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