Rollup of 12 pull requests by Zalathar · Pull Request #165843 · rust-lang/rust

Zalathar · 2026-11-12T04:21:00Z

Successful merges:

cg_llvm: Use an invariant lifetime brand for LLVM values #165804 (cg_llvm: Use an invariant lifetime brand for LLVM values)
Bump stage0 to 1.101.0-beta.1 #165778 (Bump stage0 to 1.101.0-beta.1)
Implement core::ops::FnAddr #165412 (Implement core::ops::FnAddr)
Migrate built-in macros pattern_type & view_type to macros 2.0 that expand to internal syntax #165487 (Migrate built-in macros pattern_type & view_type to macros 2.0 that expand to internal syntax)
do not lint redundant_lifetimes on items from external macros #165818 (do not lint redundant_lifetimes on items from external macros)
feat: support nested functions with #[offload_kernel] #163077 (feat: support nested functions with #[offload_kernel])
Extend support of lint explicit_outlives_requirements to checked type aliases #164795 (Extend support of lint explicit_outlives_requirements to checked type aliases)
Avoid Hash::hash when stable-hashing various types #165578 (Avoid Hash::hash when stable-hashing various types)
tests: Add regression test for infinite recursive dereference #165729 (tests: Add regression test for infinite recursive dereference)
Avoid redundant scans when extracting stage0 archives #165819 (Avoid redundant scans when extracting stage0 archives)
Remove unused compiler modules and types #165822 (Remove unused compiler modules and types)
Add regression test for HRTB projection bound with TryFrom error #165824 (Add regression test for HRTB projection bound with TryFrom error)

…pe aliases

(cherry picked from commit b791169)

LangItem might eventually be the type that forces us to support `#[derive(StableHash)]` for enums with more than 256 variants.

This commit also removes `#[derive(Hash)]` from the affected types, since it is no longer used. If these types need a plain Hash impl is needed in the future, it could potentially share the `stable_hash_inner` implementation.

By moving away from the old `impl_stable_traits_for_trivial_type!` macro, this commit has the side-effect of removing unused StableOrd impls for some types. Those impls could potentially be re-added if they are ever needed.

Add a test for a case that results in a recursive loop that runs until it runs out of memory or gets killed. This used to take a long time to compile because of nested recursion caused by dereferencing the type of the struct. Signed-off-by: Hardik Kumar <hardikxk@gmail.com>

This pulls some less-trivial changes out of the main migration to `Value<'ll>`.

derived impls kept the lifetime spans of the derive input so the external macro check missed them and `#[expect(redundant_lifetimes)]` on a derived struct went unfulfilled. the lint now skips items whose own span is in an external macro.

Just because the parser of a specific syntax fragment kind returns an `Err(_)` doesn't automatically mean that the problematic token sequence isn't "of" that fragment's kind. The token sequence might "almost" be of that kind (i.e., share a non-empty prefix) but simply contain a syntax error in it. On a side note, it's rather odd that the now removed `annotate_err_with_kind` only added the note "this macro call doesn't expand to a $fragkind" if the target fragment kind was *type* or *pat*, there are 20 kinds at the of writing.

…..)` This also means that it's now available under `core::pat` instead of `core` directly. This makes it consistent with the `std` re-export which is only available under `std::pat` and not under `std` directly. Moreover, drop library feature `pattern_type_macro` and demote language feature `pattern_types` to a library feature. This is nice because it means `std::pat::pattern_type` is no longer unnecessarily gated behind two (!) feature gates.

This also means that it's now available under `core::view` instead of `core` directly. This makes it consistent with the `std` re-export which is only available under `std::view` and not under `std` directly. Moreover, drop library feature `view_type_macro` and demote language feature `view_types` to a library feature. This is nice because it means `std::view::view_type` is no longer unnecessarily gated behind two (!) feature gates.

Co-authored-by: xkevio <xkeviota@gmail.com> style: use ecx stmt item method

cg_llvm: Use an invariant lifetime brand for LLVM values This PR changes the type of LLVM value references from `&'ll Value` to `Value<'ll>` with an invariant lifetime brand, to help uphold soundness of the FFI bindings. There should be no change to compiler output. --- Value is one of the more widely-used types, much more so than Type, so unfortunately this step ends up needing to touch quite a lot of code. Thankfully almost all of the changes are trivial.

…rk-Simulacrum Bump stage0 to 1.101.0-beta.1 https://forge.rust-lang.org/release/process.html#default-branch-bootstrap-update-and-crater-tuesday - run replace-version-placeholder (cherry-picked from beta) - bump stage0 to 1.101.0-beta.1 - update STAGE0_MISSING_TARGETS - reformat with `cfg_select!` awareness - update `cfg(bootstrap)`

Implement `core::ops::FnAddr` This implements `FnAddr` as proposed in rust-lang/libs-team#837 (comment). This is my first contribution to the rust compiler, so I'm not 100% familiar with the process. All code was hand written by me. cc rust-lang#148768

@oli-obk

…syntax, r=mati865 Migrate built-in macros `pattern_type` & `view_type` to macros 2.0 that expand to internal syntax Part of MCP-approved rust-lang#110680. Best reviewed commit by commit. Please see individual commit messages for further details. Pinging owner of pattern types @oli-obk & owner of view types @scrabsha for visibility. <sub>(No LLM was or will be used by me during the entire creation process of this PR)</sub>

@petrochenkov

…ternal-macro, r=petrochenkov do not lint `redundant_lifetimes` on items from external macros derived impls copy the lifetime spans from the derive input so the external macro check on the lint span never fires and the lint is reported on the generated impl. that also left `#[expect(redundant_lifetimes)]` on a derived struct unfulfillable. now the lint skips items whose own span is in an external macro. fixes rust-lang#150553 as suggested in rust-lang#150553 (comment) r? @petrochenkov

Zalathar · 2026-11-12T04:21:41Z

Rollup of everything, combining Rollup of 6 pull requests #165829 (which flaked out) and Rollup of 6 pull requests #165838.

@bors r+ rollup=never p=5 force

rust-bors · 2026-11-12T04:21:44Z

📌 Commit a5aa4fa has been approved by Zalathar

It is now in the queue for this repository.

Rollup of 12 pull requests Successful merges: - #165804 (cg_llvm: Use an invariant lifetime brand for LLVM values) - #165778 (Bump stage0 to 1.101.0-beta.1) - #165412 (Implement `core::ops::FnAddr`) - #165487 (Migrate built-in macros `pattern_type` & `view_type` to macros 2.0 that expand to internal syntax) - #165818 (do not lint `redundant_lifetimes` on items from external macros) - #163077 (feat: support nested functions with `#[offload_kernel]`) - #164795 (Extend support of lint `explicit_outlives_requirements` to checked type aliases) - #165578 (Avoid `Hash::hash` when stable-hashing various types) - #165729 (tests: Add regression test for infinite recursive dereference) - #165819 (Avoid redundant scans when extracting stage0 archives) - #165822 (Remove unused compiler modules and types) - #165824 (Add regression test for HRTB projection bound with TryFrom error)

rust-bors · 2026-11-12T04:28:46Z

💔 Test for c8c69b7 failed: CI. Failed job:

auto - dist-x86_64-msvc (web logs, enhanced plaintext logs)

rust-bors · 2026-11-12T04:36:45Z

PR #165819, which is a member of this rollup, was unapproved.

rust-log-analyzer · 2026-11-12T04:50:09Z

The job dist-x86_64-msvc failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot)

extracting C:\a\rust\rust\build\cache\2026-11-10\cargo-beta-x86_64-pc-windows-msvc.tar.xz
multiprocessing.pool.RemoteTraceback: 
"""
Traceback (most recent call last):
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 847, in move
    os.rename(src, real_dst)
FileExistsError: [WinError 183] Cannot create a file when that file already exists: 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\cargo-beta-x86_64-pc-windows-msvc/cargo/bin' -> 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\bin'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 125, in worker
    result = (True, func(*args, **kwds))
                    ^^^^^^^^^^^^^^^^^^^
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 48, in mapstar
    return list(map(*args))
           ^^^^^^^^^^^^^^^^
  File "C:\a\rust\rust\src\bootstrap\bootstrap.py", line 540, in unpack_component
    unpack(
  File "C:\a\rust\rust\src\bootstrap\bootstrap.py", line 218, in unpack
    shutil.move(src_path, dst_path)
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 863, in move
    copytree(src, real_dst, copy_function=copy_function,
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 600, in copytree
    return _copytree(entries=entries, src=src, dst=dst, symlinks=symlinks,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 498, in _copytree
    os.makedirs(dst, exist_ok=dirs_exist_ok)
  File "<frozen os>", line 225, in makedirs
FileExistsError: [WinError 183] Cannot create a file when that file already exists: 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\bin'
"""

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 1478, in <module>
    main()
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 1457, in main
    bootstrap(args)
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 1405, in bootstrap
    build.download_toolchain()
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 717, in download_toolchain
    p.map(unpack_component, tarballs_download_info)
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 367, in map
    return self._map_async(func, iterable, mapstar, chunksize).get()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 774, in get
    raise self._value
FileExistsError: [Errno 17] Cannot create a file when that file already exists: 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\bin'
make: *** [Makefile:95: prepare] Error 1
---
extracting C:\a\rust\rust\build\cache\2026-11-10\cargo-beta-x86_64-pc-windows-msvc.tar.xz
multiprocessing.pool.RemoteTraceback: 
"""
Traceback (most recent call last):
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 847, in move
    os.rename(src, real_dst)
FileExistsError: [WinError 183] Cannot create a file when that file already exists: 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\rustc-beta-x86_64-pc-windows-msvc/rustc/bin' -> 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\bin'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 125, in worker
    result = (True, func(*args, **kwds))
                    ^^^^^^^^^^^^^^^^^^^
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 48, in mapstar
    return list(map(*args))
           ^^^^^^^^^^^^^^^^
  File "C:\a\rust\rust\src\bootstrap\bootstrap.py", line 540, in unpack_component
    unpack(
  File "C:\a\rust\rust\src\bootstrap\bootstrap.py", line 218, in unpack
    shutil.move(src_path, dst_path)
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 863, in move
    copytree(src, real_dst, copy_function=copy_function,
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 600, in copytree
    return _copytree(entries=entries, src=src, dst=dst, symlinks=symlinks,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 498, in _copytree
    os.makedirs(dst, exist_ok=dirs_exist_ok)
  File "<frozen os>", line 225, in makedirs
FileExistsError: [WinError 183] Cannot create a file when that file already exists: 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\bin'
"""

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 1478, in <module>
    main()
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 1457, in main
    bootstrap(args)
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 1405, in bootstrap
    build.download_toolchain()
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 717, in download_toolchain
    p.map(unpack_component, tarballs_download_info)
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 367, in map
    return self._map_async(func, iterable, mapstar, chunksize).get()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 774, in get
    raise self._value
FileExistsError: [Errno 17] Cannot create a file when that file already exists: 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\bin'
make: *** [Makefile:95: prepare] Error 1
---
extracting C:\a\rust\rust\build\cache\2026-11-10\cargo-beta-x86_64-pc-windows-msvc.tar.xz
multiprocessing.pool.RemoteTraceback: 
"""
Traceback (most recent call last):
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 847, in move
    os.rename(src, real_dst)
FileExistsError: [WinError 183] Cannot create a file when that file already exists: 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\rustc-beta-x86_64-pc-windows-msvc/rustc/bin' -> 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\bin'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 125, in worker
    result = (True, func(*args, **kwds))
                    ^^^^^^^^^^^^^^^^^^^
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 48, in mapstar
    return list(map(*args))
           ^^^^^^^^^^^^^^^^
  File "C:\a\rust\rust\src\bootstrap\bootstrap.py", line 540, in unpack_component
    unpack(
  File "C:\a\rust\rust\src\bootstrap\bootstrap.py", line 218, in unpack
    shutil.move(src_path, dst_path)
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 863, in move
    copytree(src, real_dst, copy_function=copy_function,
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 600, in copytree
    return _copytree(entries=entries, src=src, dst=dst, symlinks=symlinks,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 498, in _copytree
    os.makedirs(dst, exist_ok=dirs_exist_ok)
  File "<frozen os>", line 225, in makedirs
FileExistsError: [WinError 183] Cannot create a file when that file already exists: 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\bin'
"""

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 1478, in <module>
    main()
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 1457, in main
    bootstrap(args)
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 1405, in bootstrap
    build.download_toolchain()
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 717, in download_toolchain
    p.map(unpack_component, tarballs_download_info)
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 367, in map
    return self._map_async(func, iterable, mapstar, chunksize).get()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 774, in get
    raise self._value
FileExistsError: [Errno 17] Cannot create a file when that file already exists: 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\bin'
make: *** [Makefile:95: prepare] Error 1
---
extracting C:\a\rust\rust\build\cache\2026-11-10\cargo-beta-x86_64-pc-windows-msvc.tar.xz
multiprocessing.pool.RemoteTraceback: 
"""
Traceback (most recent call last):
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 847, in move
    os.rename(src, real_dst)
FileExistsError: [WinError 183] Cannot create a file when that file already exists: 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\rustc-beta-x86_64-pc-windows-msvc/rustc/bin' -> 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\bin'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 125, in worker
    result = (True, func(*args, **kwds))
                    ^^^^^^^^^^^^^^^^^^^
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 48, in mapstar
    return list(map(*args))
           ^^^^^^^^^^^^^^^^
  File "C:\a\rust\rust\src\bootstrap\bootstrap.py", line 540, in unpack_component
    unpack(
  File "C:\a\rust\rust\src\bootstrap\bootstrap.py", line 218, in unpack
    shutil.move(src_path, dst_path)
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 863, in move
    copytree(src, real_dst, copy_function=copy_function,
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 600, in copytree
    return _copytree(entries=entries, src=src, dst=dst, symlinks=symlinks,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 498, in _copytree
    os.makedirs(dst, exist_ok=dirs_exist_ok)
  File "<frozen os>", line 225, in makedirs
FileExistsError: [WinError 183] Cannot create a file when that file already exists: 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\bin'
"""

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 1478, in <module>
    main()
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 1457, in main
    bootstrap(args)
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 1405, in bootstrap
    build.download_toolchain()
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 717, in download_toolchain
    p.map(unpack_component, tarballs_download_info)
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 367, in map
    return self._map_async(func, iterable, mapstar, chunksize).get()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 774, in get
    raise self._value
FileExistsError: [Errno 17] Cannot create a file when that file already exists: 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\bin'
make: *** [Makefile:95: prepare] Error 1
---
extracting C:\a\rust\rust\build\cache\2026-11-10\cargo-beta-x86_64-pc-windows-msvc.tar.xz
multiprocessing.pool.RemoteTraceback: 
"""
Traceback (most recent call last):
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 847, in move
    os.rename(src, real_dst)
FileExistsError: [WinError 183] Cannot create a file when that file already exists: 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\rustc-beta-x86_64-pc-windows-msvc/rustc/bin' -> 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\bin'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 125, in worker
    result = (True, func(*args, **kwds))
                    ^^^^^^^^^^^^^^^^^^^
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 48, in mapstar
    return list(map(*args))
           ^^^^^^^^^^^^^^^^
  File "C:\a\rust\rust\src\bootstrap\bootstrap.py", line 540, in unpack_component
    unpack(
  File "C:\a\rust\rust\src\bootstrap\bootstrap.py", line 218, in unpack
    shutil.move(src_path, dst_path)
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 863, in move
    copytree(src, real_dst, copy_function=copy_function,
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 600, in copytree
    return _copytree(entries=entries, src=src, dst=dst, symlinks=symlinks,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\shutil.py", line 498, in _copytree
    os.makedirs(dst, exist_ok=dirs_exist_ok)
  File "<frozen os>", line 225, in makedirs
FileExistsError: [WinError 183] Cannot create a file when that file already exists: 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\bin'
"""

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 1478, in <module>
    main()
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 1457, in main
    bootstrap(args)
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 1405, in bootstrap
    build.download_toolchain()
  File "C:\a\rust\rust/src/bootstrap/bootstrap.py", line 717, in download_toolchain
    p.map(unpack_component, tarballs_download_info)
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 367, in map
    return self._map_async(func, iterable, mapstar, chunksize).get()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\hostedtoolcache\windows\Python\3.12.10\x64\Lib\multiprocessing\pool.py", line 774, in get
    raise self._value
FileExistsError: [Errno 17] Cannot create a file when that file already exists: 'C:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\stage0\\bin'
make: *** [Makefile:95: prepare] Error 1

fmease and others added 30 commits October 30, 2026 11:27

Extend support of lint explicit_outlives_requirements to checked ty…

dfee48c

…pe aliases

Implement FnAddr

4f3fdda

Implement FnAddr for function definitions

49918a6

run replace-version-placeholder

99f5fb6

(cherry picked from commit b791169)

bump stage0 to 1.101.0-beta.1

325b278

update STAGE0_MISSING_TARGETS

fcb99ab

reformat with cfg_select! awareness

db5c0c9

update cfg(bootstrap)

e2c096e

More bootstrap cleanup

afc21ea

Avoid Hash::hash when stable-hashing ExternAbi

4d789e7

Avoid Hash::hash when stable-hashing LangItem

31f5000

LangItem might eventually be the type that forces us to support `#[derive(StableHash)]` for enums with more than 256 variants.

Avoid Hash::hash when stable-hashing various types

b864cd3

By moving away from the old `impl_stable_traits_for_trivial_type!` macro, this commit has the side-effect of removing unused StableOrd impls for some types. Those impls could potentially be re-added if they are ever needed.

remove unused compiler utilities and types

b0d1b2d

Avoid raw pointers in LLVMRustConstPtrAuth

2de7a66

This pulls some less-trivial changes out of the main migration to `Value<'ll>`.

Use an invariant lifetime brand for LLVM values

6c0a3df

avoid redundant scans when extracting stage0 archives

ce09ca6

Add regression test for HRTB projection bound with TryFrom error

50f93bc

miri: inline an unnecessary local

b904030

feat: support nested functions with offload_kernel

a6a7cca

Co-authored-by: xkevio <xkeviota@gmail.com> style: use ecx stmt item method

rust-bors Bot added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Nov 12, 2026

Zalathar mentioned this pull request Nov 12, 2026

Rollup of 6 pull requests #165838

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rust-bors Bot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Nov 12, 2026

Zalathar mentioned this pull request Nov 12, 2026

Avoid redundant scans when extracting stage0 archives #165819

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rust-bors Bot added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Nov 12, 2026

Zalathar closed this Nov 12, 2026

rustbot removed the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. label Nov 12, 2026

Zalathar deleted the rollup-Hh5O61V branch November 12, 2026 04:37

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Rollup of 12 pull requests - #165843

Rollup of 12 pull requests#165843
Zalathar wants to merge 37 commits into
rust-lang:mainfrom
Zalathar:rollup-Hh5O61V

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