[crater] error on everything attribute related by mejrs · Pull Request #165441 · rust-lang/rust

mejrs · 2026-11-04T00:21:52Z

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All attributes now get parsed, let's see what happens. Main goals here:

figure out how often macro_escape is used
figure out which warnings are widely reported and note that in a comment
if some warnings are never or very rarely emitted, let's see if that can be turned into an error
this parses attributes on macro calls together, I wonder if that matters.

(repr combinations/no_mangle/export_name are not included, they are covered in other crater runs)

r? @JonathanBrouwer, can you double check? I might've overlooked stuff.

mejrs · 2026-11-04T00:22:34Z

Let's see whether rustc can bootstrap on linux with these changes

@bors try

[crater] error on everything attribute related

rust-bors · 2026-11-04T00:42:50Z

💔 Test for acda8ae failed: CI. Failed jobs:

try - dist-aarch64-linux-quick (web logs, enhanced plaintext logs)
try - dist-x86_64-linux-quick (web logs, enhanced plaintext logs)

mejrs · 2026-11-04T12:13:21Z

@bors try jobs=test-aarch64-apple-1

[crater] error on everything attribute related try-job: test-aarch64-apple-1

rust-bors · 2026-11-04T13:56:39Z

💔 Test for bf08b19 failed: CI. Failed job:

try - test-aarch64-apple-1 (web logs, enhanced plaintext logs)

mejrs · 2026-11-04T23:19:40Z

@bors try

[crater] error on everything attribute related

rust-bors · 2026-11-04T23:39:23Z

💔 Test for d189687 failed: CI. Failed jobs:

try - dist-aarch64-linux-quick (web logs, enhanced plaintext logs)
try - dist-x86_64-linux-quick (web logs, enhanced plaintext logs)

mejrs · 2026-11-05T11:17:33Z

@bors try

[crater] error on everything attribute related

rust-bors · 2026-11-05T12:40:45Z

💔 Test for 535c6bf failed: CI. Failed jobs:

try - dist-aarch64-linux-quick (web logs, enhanced plaintext logs)
try - dist-x86_64-linux-quick (web logs, enhanced plaintext logs)

mejrs · 2026-11-05T14:55:41Z

@bors try

[crater] error on everything attribute related

rust-bors · 2026-11-05T15:15:40Z

💔 Test for 96307a6 failed: CI. Failed jobs:

try - dist-aarch64-linux-quick (web logs, enhanced plaintext logs)
try - dist-x86_64-linux-quick (web logs, enhanced plaintext logs)

mejrs · 2026-11-08T23:27:15Z

@bors try

[crater] error on everything attribute related

mejrs · 2026-11-08T23:29:18Z

@bors try

[crater] error on everything attribute related

rust-bors · 2026-11-09T00:15:52Z

☀️ Try build successful (CI)
Build commit: 4c33559 (4c335594742dddbe247f0a982efa9ee46f86ca8c)
Base parent: 5b7b37a (5b7b37aefcb5b2fba3c2392bc9065b9e4602d494)

rust-log-analyzer · 2026-11-09T14:43:00Z

The job test-pr-check-2 failed! Check out the build log: (web) (plain enhanced) (plain)

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


---- [codegen] tests/codegen-llvm/cdylib-external-inline-fns.rs stdout ----
------rustc stdout------------------------------

------rustc stderr------------------------------
error: `#[inline]` is ignored on externally exported functions
##[error] --> /checkout/tests/codegen-llvm/cdylib-external-inline-fns.rs:7:1
  |
7 | #[inline]
  | ^^^^^^^^^
  |
---
------------------------------------------

error: compilation failed!
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1/bin/rustc" "/checkout/tests/codegen-llvm/cdylib-external-inline-fns.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1" "--target=wasm32-wasip3" "--check-cfg" "cfg(test,FALSE)" "-O" "-Cdebug-assertions=no" "-Zcodegen-source-order" "--emit" "llvm-ir" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/codegen-llvm/cdylib-external-inline-fns/cdylib-external-inline-fns.ll" "-Znext-solver=coherence" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "--edition=2015" "-C" "no-prepopulate-passes"
stdout: none
--- stderr -------------------------------
error: `#[inline]` is ignored on externally exported functions
##[error] --> /checkout/tests/codegen-llvm/cdylib-external-inline-fns.rs:7:1
  |
---
---- [codegen] tests/codegen-llvm/cdylib-external-inline-fns.rs stdout end ----
---- [codegen] tests/codegen-llvm/export-no-mangle.rs stdout ----
------rustc stdout------------------------------

------rustc stderr------------------------------
error: `#[inline]` is ignored on externally exported functions
##[error]  --> /checkout/tests/codegen-llvm/export-no-mangle.rs:24:5
   |
24 |     #[inline]
   |     ^^^^^^^^^
   |
---
------------------------------------------

error: compilation failed!
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1/bin/rustc" "/checkout/tests/codegen-llvm/export-no-mangle.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1" "--target=wasm32-wasip3" "--check-cfg" "cfg(test,FALSE)" "-O" "-Cdebug-assertions=no" "-Zcodegen-source-order" "--emit" "llvm-ir" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/codegen-llvm/export-no-mangle/export-no-mangle.ll" "-Znext-solver=coherence" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "--edition=2015" "-C" "no-prepopulate-passes"
stdout: none
--- stderr -------------------------------
error: `#[inline]` is ignored on externally exported functions
##[error]  --> /checkout/tests/codegen-llvm/export-no-mangle.rs:24:5
   |
---
---- [codegen] tests/codegen-llvm/export-no-mangle.rs stdout end ----
---- [codegen] tests/codegen-llvm/external-no-mangle-fns.rs stdout ----
------rustc stdout------------------------------

------rustc stderr------------------------------
error: `#[inline]` is ignored on externally exported functions
##[error]  --> /checkout/tests/codegen-llvm/external-no-mangle-fns.rs:59:1
   |
59 | #[inline]
   | ^^^^^^^^^
   |
---
------------------------------------------

error: compilation failed!
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1/bin/rustc" "/checkout/tests/codegen-llvm/external-no-mangle-fns.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1" "--target=wasm32-wasip3" "--check-cfg" "cfg(test,FALSE)" "-O" "-Cdebug-assertions=no" "-Zcodegen-source-order" "--emit" "llvm-ir" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/codegen-llvm/external-no-mangle-fns/external-no-mangle-fns.ll" "-Znext-solver=coherence" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "--edition=2015" "-C" "no-prepopulate-passes"
stdout: none
--- stderr -------------------------------
error: `#[inline]` is ignored on externally exported functions
##[error]  --> /checkout/tests/codegen-llvm/external-no-mangle-fns.rs:59:1
   |
---
---- [codegen] tests/codegen-llvm/external-no-mangle-fns.rs stdout end ----
---- [codegen] tests/codegen-llvm/inline-always-works-always.rs#NO-OPT stdout ----
------rustc stdout------------------------------

------rustc stderr------------------------------
error: `#[inline]` is ignored on externally exported functions
##[error]  --> /checkout/tests/codegen-llvm/inline-always-works-always.rs:11:1
   |
11 | #[inline(always)]
   | ^^^^^^^^^^^^^^^^^
   |
   = help: externally exported functions are functions with `#[no_mangle]`, `#[export_name]`, or `#[linkage]`

error: aborting due to 1 previous error


------------------------------------------

error in revision `NO-OPT`: compilation failed!
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1/bin/rustc" "/checkout/tests/codegen-llvm/inline-always-works-always.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1" "--target=wasm32-wasip3" "--cfg" "no_opt" "--check-cfg" "cfg(test,FALSE,no_opt,size_opt,speed_opt)" "-O" "-Cdebug-assertions=no" "-Zcodegen-source-order" "--emit" "llvm-ir" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/codegen-llvm/inline-always-works-always.NO-OPT/inline-always-works-always.ll" "-Znext-solver=coherence" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "--edition=2015" "-Copt-level=0"
stdout: none
--- stderr -------------------------------
error: `#[inline]` is ignored on externally exported functions
##[error]  --> /checkout/tests/codegen-llvm/inline-always-works-always.rs:11:1
   |
---
---- [codegen] tests/codegen-llvm/inline-always-works-always.rs#NO-OPT stdout end ----
---- [codegen] tests/codegen-llvm/inline-always-works-always.rs#SIZE-OPT stdout ----
------rustc stdout------------------------------

------rustc stderr------------------------------
error: `#[inline]` is ignored on externally exported functions
##[error]  --> /checkout/tests/codegen-llvm/inline-always-works-always.rs:11:1
   |
11 | #[inline(always)]
   | ^^^^^^^^^^^^^^^^^
   |
---
------------------------------------------

error in revision `SIZE-OPT`: compilation failed!
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1/bin/rustc" "/checkout/tests/codegen-llvm/inline-always-works-always.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1" "--target=wasm32-wasip3" "--cfg" "size_opt" "--check-cfg" "cfg(test,FALSE,no_opt,size_opt,speed_opt)" "-O" "-Cdebug-assertions=no" "-Zcodegen-source-order" "--emit" "llvm-ir" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/codegen-llvm/inline-always-works-always.SIZE-OPT/inline-always-works-always.ll" "-Znext-solver=coherence" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "--edition=2015" "-Copt-level=s"
stdout: none
--- stderr -------------------------------
error: `#[inline]` is ignored on externally exported functions
##[error]  --> /checkout/tests/codegen-llvm/inline-always-works-always.rs:11:1
   |
---
---- [codegen] tests/codegen-llvm/inline-always-works-always.rs#SIZE-OPT stdout end ----
---- [codegen] tests/codegen-llvm/inline-always-works-always.rs#SPEED-OPT stdout ----
------rustc stdout------------------------------

------rustc stderr------------------------------
error: `#[inline]` is ignored on externally exported functions
##[error]  --> /checkout/tests/codegen-llvm/inline-always-works-always.rs:11:1
   |
11 | #[inline(always)]
   | ^^^^^^^^^^^^^^^^^
   |
   = help: externally exported functions are functions with `#[no_mangle]`, `#[export_name]`, or `#[linkage]`

error: aborting due to 1 previous error


------------------------------------------

error in revision `SPEED-OPT`: compilation failed!
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1/bin/rustc" "/checkout/tests/codegen-llvm/inline-always-works-always.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1" "--target=wasm32-wasip3" "--cfg" "speed_opt" "--check-cfg" "cfg(test,FALSE,no_opt,size_opt,speed_opt)" "-O" "-Cdebug-assertions=no" "-Zcodegen-source-order" "--emit" "llvm-ir" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/codegen-llvm/inline-always-works-always.SPEED-OPT/inline-always-works-always.ll" "-Znext-solver=coherence" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "--edition=2015" "-Copt-level=3"
stdout: none
--- stderr -------------------------------
error: `#[inline]` is ignored on externally exported functions
##[error]  --> /checkout/tests/codegen-llvm/inline-always-works-always.rs:11:1
   |
---
---- [codegen] tests/codegen-llvm/inline-always-works-always.rs#SPEED-OPT stdout end ----
---- [codegen] tests/codegen-llvm/inline-debuginfo.rs stdout ----
------rustc stdout------------------------------

------rustc stderr------------------------------
error: `#[inline]` is ignored on externally exported functions
##[error] --> /checkout/tests/codegen-llvm/inline-debuginfo.rs:6:1
  |
6 | #[inline(always)]
  | ^^^^^^^^^^^^^^^^^
  |
---
------------------------------------------

error: compilation failed!
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1/bin/rustc" "/checkout/tests/codegen-llvm/inline-debuginfo.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1" "--target=wasm32-wasip3" "--check-cfg" "cfg(test,FALSE)" "-O" "-Cdebug-assertions=no" "-Zcodegen-source-order" "--emit" "llvm-ir" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/codegen-llvm/inline-debuginfo/inline-debuginfo.ll" "-Znext-solver=coherence" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "--edition=2015" "-Copt-level=3" "-g"
stdout: none
--- stderr -------------------------------
error: `#[inline]` is ignored on externally exported functions
##[error] --> /checkout/tests/codegen-llvm/inline-debuginfo.rs:6:1
  |
---
---- [codegen] tests/codegen-llvm/inline-debuginfo.rs stdout end ----
---- [codegen] tests/codegen-llvm/inline-always.rs stdout ----
------rustc stdout------------------------------

------rustc stderr------------------------------
warning: unused import: `minicore::*`
##[warning]  --> /checkout/tests/codegen-llvm/inline-always.rs:11:5
   |
11 | use minicore::*;
   |     ^^^^^^^^^^^
   |
---
------------------------------------------

error: compilation failed!
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1/bin/rustc" "/checkout/tests/codegen-llvm/inline-always.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1" "--check-cfg" "cfg(test,FALSE)" "-O" "-Cdebug-assertions=no" "-Zcodegen-source-order" "--emit" "llvm-ir" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/codegen-llvm/inline-always/inline-always.ll" "-Znext-solver=coherence" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "-Cpanic=abort" "-Cforce-unwind-tables=yes" "--edition=2015" "--target" "aarch64-unknown-linux-gnu" "-Zinline-mir=no" "-C" "no-prepopulate-passes" "-Copt-level=3" "--extern" "minicore=/checkout/obj/build/x86_64-unknown-linux-gnu/test/codegen-llvm/inline-always/libminicore.rlib"
stdout: none
--- stderr -------------------------------
warning: unused import: `minicore::*`
##[warning]  --> /checkout/tests/codegen-llvm/inline-always.rs:11:5
   |
---
---- [codegen] tests/codegen-llvm/inline-always.rs stdout end ----
---- [codegen] tests/codegen-llvm/staticlib-external-inline-fns.rs stdout ----
------rustc stdout------------------------------

------rustc stderr------------------------------
error: `#[inline]` is ignored on externally exported functions
##[error] --> /checkout/tests/codegen-llvm/staticlib-external-inline-fns.rs:7:1
  |
7 | #[inline]
  | ^^^^^^^^^
  |
---
------------------------------------------

error: compilation failed!
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1/bin/rustc" "/checkout/tests/codegen-llvm/staticlib-external-inline-fns.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1" "--target=wasm32-wasip3" "--check-cfg" "cfg(test,FALSE)" "-O" "-Cdebug-assertions=no" "-Zcodegen-source-order" "--emit" "llvm-ir" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/codegen-llvm/staticlib-external-inline-fns/staticlib-external-inline-fns.ll" "-Znext-solver=coherence" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "--edition=2015" "-C" "no-prepopulate-passes"
stdout: none
--- stderr -------------------------------
error: `#[inline]` is ignored on externally exported functions
##[error] --> /checkout/tests/codegen-llvm/staticlib-external-inline-fns.rs:7:1
  |
---
---- [codegen] tests/codegen-llvm/staticlib-external-inline-fns.rs stdout end ----
---- [codegen] tests/codegen-llvm/target-feature-overrides.rs#COMPAT stdout ----
------rustc stdout------------------------------

------rustc stderr------------------------------
warning: unused import: `minicore::*`
##[warning]  --> /checkout/tests/codegen-llvm/target-feature-overrides.rs:15:5
   |
15 | use minicore::*;
   |     ^^^^^^^^^^^
   |
---
------------------------------------------

error in revision `COMPAT`: compilation failed!
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1/bin/rustc" "/checkout/tests/codegen-llvm/target-feature-overrides.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1" "--cfg" "compat" "--check-cfg" "cfg(test,FALSE,compat,incompat)" "-O" "-Cdebug-assertions=no" "-Zcodegen-source-order" "--emit" "llvm-ir" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/codegen-llvm/target-feature-overrides.COMPAT/target-feature-overrides.ll" "-Znext-solver=coherence" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "-Cpanic=abort" "-Cforce-unwind-tables=yes" "--edition=2015" "--target=x86_64-unknown-linux-gnu" "-Copt-level=3" "-Ctarget-feature=+avx2" "--extern" "minicore=/checkout/obj/build/x86_64-unknown-linux-gnu/test/codegen-llvm/target-feature-overrides.COMPAT/libminicore.rlib"
stdout: none
--- stderr -------------------------------
warning: unused import: `minicore::*`
##[warning]  --> /checkout/tests/codegen-llvm/target-feature-overrides.rs:15:5
   |
---
---- [codegen] tests/codegen-llvm/target-feature-overrides.rs#COMPAT stdout end ----
---- [codegen] tests/codegen-llvm/target-feature-overrides.rs#INCOMPAT stdout ----
------rustc stdout------------------------------

------rustc stderr------------------------------
warning: unused import: `minicore::*`
##[warning]  --> /checkout/tests/codegen-llvm/target-feature-overrides.rs:15:5
   |
15 | use minicore::*;
   |     ^^^^^^^^^^^
   |
---
------------------------------------------

error in revision `INCOMPAT`: compilation failed!
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1/bin/rustc" "/checkout/tests/codegen-llvm/target-feature-overrides.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1" "--cfg" "incompat" "--check-cfg" "cfg(test,FALSE,compat,incompat)" "-O" "-Cdebug-assertions=no" "-Zcodegen-source-order" "--emit" "llvm-ir" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/codegen-llvm/target-feature-overrides.INCOMPAT/target-feature-overrides.ll" "-Znext-solver=coherence" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "-Cpanic=abort" "-Cforce-unwind-tables=yes" "--edition=2015" "--target=x86_64-unknown-linux-gnu" "-Copt-level=3" "-Ctarget-feature=-avx2,-avx" "--extern" "minicore=/checkout/obj/build/x86_64-unknown-linux-gnu/test/codegen-llvm/target-feature-overrides.INCOMPAT/libminicore.rlib"
stdout: none
--- stderr -------------------------------
warning: unused import: `minicore::*`
##[warning]  --> /checkout/tests/codegen-llvm/target-feature-overrides.rs:15:5
   |

rust-bors · 2026-11-10T20:31:17Z

☔ The latest upstream changes (presumably #165760) made this pull request unmergeable. Please resolve the merge conflicts by rebasing.

mejrs added S-experimental Status: Ongoing experiment that does not require reviewing and won't be merged in its current state. C-crater Category: Issues tracking / PRs primarily containing crater runs labels Nov 4, 2026

rustbot assigned JonathanBrouwer Nov 4, 2026

rustbot added A-attributes Area: Attributes (`#[…]`, `#![…]`) S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Nov 4, 2026