Update libc to v0.2.180 #150752

thesummer · 2026-01-07T08:04:59Z

Follow-up of #150484.
This PR updates libc to include the latest patches to make rtems target (and probably others) compile again.

rustbot · 2026-01-07T08:05:02Z

These commits modify the library/Cargo.lock file. Unintentional changes to library/Cargo.lock can be introduced when switching branches and rebasing PRs.

If this was unintentional then you should revert the changes before this PR is merged.
Otherwise, you can ignore this comment.

rustbot · 2026-01-07T08:05:05Z

r? @tgross35

rustbot has assigned @tgross35.
They will have a look at your PR within the next two weeks and either review your PR or reassign to another reviewer.

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tgross35 · 2026-01-07T08:44:32Z

Mind waiting until tomorrow? I should have 0.2.180 out by then, which will include a handful of fixes on smaller targets (unbreaking uclibc)

thesummer · 2026-01-07T08:46:18Z

Sure, no problem. Should I close this PR or just update it when the release is there?

tgross35 · 2026-01-07T09:15:16Z

You can leave it open, I'll ping once the release is out

rustbot · 2026-01-08T12:31:49Z

This PR was rebased onto a different main commit. Here's a range-diff highlighting what actually changed.

Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers.

tgross35 · 2026-01-08T12:32:56Z

Wow you're on top of things, I was just about to ping here

thesummer · 2026-01-08T12:33:12Z

Just got an Email from the rustbot regarding the new libc release and updated the PR.

tgross35 · 2026-01-08T12:35:12Z

library/std/Cargo.toml


 [target.'cfg(not(all(windows, target_env = "msvc")))'.dependencies]
-libc = { version = "0.2.178", default-features = false, features = [
+libc = { version = "0.2.179", default-features = false, features = [


This isn't actually using the very latest (0.2.180)

yes, I did some errors locally with the git commands. Should be correct now.

tgross35

Thanks! LGTM once CI passes

View changes since this review

tgross35 · 2026-01-08T13:38:50Z

@bors r+

rust-bors · 2026-01-08T13:38:54Z

📌 Commit 47c5f58 has been approved by tgross35

It is now in the queue for this repository.

Update libc to v0.2.180 Follow-up of rust-lang#150484. This PR updates libc to include the latest patches to make rtems target (and probably others) compile again.

@ghost

Rollup of 12 pull requests Successful merges: - #149961 (tidy: add if-installed prefix condition to extra checks system) - #150475 (std: sys: fs: uefi: Implement initial File) - #150533 (std: sys: fs: uefi: Implement remove_dir_all) - #150549 (fix missing_panics_doc in `std::os::fd::owned`) - #150699 (MGCA: Support literals as direct const arguments) - #150721 (Deprecated doc intra link) - #150752 (Update libc to v0.2.180) - #150802 (Minor cleanups to fn_abi_new_uncached) - #150803 (compiler-builtins subtree update) - #150809 (Update `literal-escaper` version to `0.0.7`) - #150811 (Store defids instead of symbol names in the aliases list) - #150825 (Query associated_item_def_ids when needed) r? @ghost

Update libc to v0.2.180 Follow-up of rust-lang#150484. This PR updates libc to include the latest patches to make rtems target (and probably others) compile again.

matthiaskrgr · 2026-01-08T20:42:11Z

@bors try jobs=dist-ohos-x86_64

Update libc to v0.2.180 try-job: dist-ohos-x86_64

Update libc to v0.2.180 Follow-up of rust-lang#150484. This PR updates libc to include the latest patches to make rtems target (and probably others) compile again.

rust-bors · 2026-01-08T21:19:38Z

💔 Test for 607b25b failed: CI. Failed jobs:

try - dist-ohos-x86_64 (web logs, enhanced plaintext logs)

rust-log-analyzer · 2026-01-08T21:19:43Z

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

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

   Compiling addr2line v0.25.1
[RUSTC-TIMING] addr2line test:false 0.595
[RUSTC-TIMING] gimli test:false 4.544
[RUSTC-TIMING] object test:false 5.434
error[E0609]: no field `st_atime` on type `&libc::stat`
   --> /rustc/607b25bf27810d534722608988de8fcb5b8adfec/library/std/src/os/linux/fs.rs:370:30
    |
370 |         file_attr.as_inner().st_atime as i64
    |                              ^^^^^^^^ unknown field
    |
help: a field with a similar name exists
    |
370 -         file_attr.as_inner().st_atime as i64
370 +         file_attr.as_inner().st_atim as i64
    |

error[E0609]: no field `st_atime_nsec` on type `&libc::stat`
   --> /rustc/607b25bf27810d534722608988de8fcb5b8adfec/library/std/src/os/linux/fs.rs:373:36
    |
373 |         self.as_inner().as_inner().st_atime_nsec as i64
    |                                    ^^^^^^^^^^^^^ unknown field
    |
    = note: available fields are: `st_dev`, `st_ino`, `st_nlink`, `st_mode`, `st_uid` ... and 8 others

error[E0609]: no field `st_mtime` on type `&libc::stat`
   --> /rustc/607b25bf27810d534722608988de8fcb5b8adfec/library/std/src/os/linux/fs.rs:381:30
    |
381 |         file_attr.as_inner().st_mtime as i64
    |                              ^^^^^^^^ unknown field
    |
help: a field with a similar name exists
    |
381 -         file_attr.as_inner().st_mtime as i64
381 +         file_attr.as_inner().st_mtim as i64
    |

error[E0609]: no field `st_mtime_nsec` on type `&libc::stat`
   --> /rustc/607b25bf27810d534722608988de8fcb5b8adfec/library/std/src/os/linux/fs.rs:384:36
    |
384 |         self.as_inner().as_inner().st_mtime_nsec as i64
    |                                    ^^^^^^^^^^^^^ unknown field
    |
    = note: available fields are: `st_dev`, `st_ino`, `st_nlink`, `st_mode`, `st_uid` ... and 8 others

error[E0609]: no field `st_ctime` on type `&libc::stat`
   --> /rustc/607b25bf27810d534722608988de8fcb5b8adfec/library/std/src/os/linux/fs.rs:392:30
    |
392 |         file_attr.as_inner().st_ctime as i64
    |                              ^^^^^^^^ unknown field
    |
help: a field with a similar name exists
    |
392 -         file_attr.as_inner().st_ctime as i64
392 +         file_attr.as_inner().st_ctim as i64
    |

error[E0609]: no field `st_ctime_nsec` on type `&libc::stat`
   --> /rustc/607b25bf27810d534722608988de8fcb5b8adfec/library/std/src/os/linux/fs.rs:395:36
    |
395 |         self.as_inner().as_inner().st_ctime_nsec as i64
    |                                    ^^^^^^^^^^^^^ unknown field
    |
    = note: available fields are: `st_dev`, `st_ino`, `st_nlink`, `st_mode`, `st_uid` ... and 8 others

error[E0609]: no field `st_mtime` on type `libc::stat`
   --> /rustc/607b25bf27810d534722608988de8fcb5b8adfec/library/std/src/sys/fs/unix.rs:633:35
    |
633 |         SystemTime::new(self.stat.st_mtime as i64, self.stat.st_mtime_nsec as i64)
    |                                   ^^^^^^^^ unknown field
    |
help: a field with a similar name exists
    |
633 -         SystemTime::new(self.stat.st_mtime as i64, self.stat.st_mtime_nsec as i64)
633 +         SystemTime::new(self.stat.st_mtim as i64, self.stat.st_mtime_nsec as i64)
    |

error[E0609]: no field `st_mtime_nsec` on type `libc::stat`
   --> /rustc/607b25bf27810d534722608988de8fcb5b8adfec/library/std/src/sys/fs/unix.rs:633:62
    |
633 |         SystemTime::new(self.stat.st_mtime as i64, self.stat.st_mtime_nsec as i64)
    |                                                              ^^^^^^^^^^^^^ unknown field
    |
    = note: available fields are: `st_dev`, `st_ino`, `st_nlink`, `st_mode`, `st_uid` ... and 8 others

error[E0609]: no field `st_atime` on type `libc::stat`
   --> /rustc/607b25bf27810d534722608988de8fcb5b8adfec/library/std/src/sys/fs/unix.rs:668:35
    |
668 |         SystemTime::new(self.stat.st_atime as i64, self.stat.st_atime_nsec as i64)
    |                                   ^^^^^^^^ unknown field
    |
help: a field with a similar name exists
    |
668 -         SystemTime::new(self.stat.st_atime as i64, self.stat.st_atime_nsec as i64)
668 +         SystemTime::new(self.stat.st_atim as i64, self.stat.st_atime_nsec as i64)
    |

error[E0609]: no field `st_atime_nsec` on type `libc::stat`
   --> /rustc/607b25bf27810d534722608988de8fcb5b8adfec/library/std/src/sys/fs/unix.rs:668:62
    |
668 |         SystemTime::new(self.stat.st_atime as i64, self.stat.st_atime_nsec as i64)
    |                                                              ^^^^^^^^^^^^^ unknown field
    |
    = note: available fields are: `st_dev`, `st_ino`, `st_nlink`, `st_mode`, `st_uid` ... and 8 others

For more information about this error, try `rustc --explain E0609`.
[RUSTC-TIMING] std test:false 3.385
error: could not compile `std` (lib) due to 10 previous errors
Bootstrap failed while executing `dist --host=x86_64-unknown-linux-ohos --target x86_64-unknown-linux-ohos`

Update libc to v0.2.180 Follow-up of rust-lang#150484. This PR updates libc to include the latest patches to make rtems target (and probably others) compile again.

matthiaskrgr · 2026-01-08T21:22:18Z

@bors r-

rust-bors · 2026-01-08T21:22:21Z

Commit 47c5f58 has been unapproved.

pheki · 2026-01-11T05:32:51Z

Hey, 2 things:

First, it seems like the RTEMS target is actually compiling (my bad for the confusion as I'm the one who originally stated that the ambiguous export was blocking compilation for the vita). As I explained in this comment, when compiling rustc directly the lint is denied, but when using build-std it "just" shows a future-compat warning. You can also check the build history and the back-compat warning on does-it-build by noratrieb.

Second, it seems like libc v0.2.179 broke ohos, I'm assuming due to rust-lang/libc#4463. Should we notify the ohos maintainers?

thesummer · 2026-01-11T17:16:12Z

@pheki Thanks for the pointer of does it build. Amazing.

I am a bit out of my depth here regarding the ohos problems. @tgross35 is this something to fix in the libc or in the rustc repo?

tgross35 · 2026-01-11T20:09:13Z

Argh. It should probably be changed in libc, the fields need to get a cfg(target_env = “ohos”) since ohis sets the musl_v1_2_3 config. musl_v1_2_3 isn’t intended to enable breaking changes on its own, only the time config should allow that.

Bit of a mess unfortunately, given the “similar but not identical” relationship between musl and ohos, and the lack of ohos testing.

rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Jan 7, 2026

rustbot assigned tgross35 Jan 7, 2026

thesummer changed the title ~~Update libc to v0.2.179~~ Update libc to v0.2.180 Jan 8, 2026

thesummer force-pushed the update-libc-0.2.179 branch from f581a0d to a45ec88 Compare January 8, 2026 12:31

tgross35 reviewed Jan 8, 2026

View reviewed changes

Update libc to v0.2.180

47c5f58

thesummer force-pushed the update-libc-0.2.179 branch from a45ec88 to 47c5f58 Compare January 8, 2026 12:36

tgross35 approved these changes Jan 8, 2026

View reviewed changes

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 Jan 8, 2026

matthiaskrgr mentioned this pull request Jan 8, 2026

Rollup of 12 pull requests #150830

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matthiaskrgr mentioned this pull request Jan 8, 2026

Rollup of 11 pull requests #150832

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ChrisDenton mentioned this pull request Jan 8, 2026

std: sys: fs: uefi: Implement initial File #150475

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rust-bors bot added a commit that referenced this pull request Jan 8, 2026

Auto merge of #150752 - thesummer:update-libc-0.2.179, r=<try>

607b25b

Update libc to v0.2.180 try-job: dist-ohos-x86_64

rust-bors bot added the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. label Jan 8, 2026

matthiaskrgr mentioned this pull request Jan 8, 2026

Rollup of 12 pull requests #150838

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rust-bors bot removed the S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. label Jan 8, 2026

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