Dear contributor,

Our automatic CI has detected problems related to your patch(es). Please find 
some details below.

In  master-arm_eabi, after:
  | commit gcc-16-5845-g8a2e6590cc4a
  | Author: François Dumont <[email protected]>
  | Date:   Mon Sep 22 18:58:52 2025 +0200
  | 
  |     libstdc++: [_GLIBCXX_DEBUG] Implement std::__debug::inplace_vector
  |     
  |     Add _GLIBCXX_DEBUG std::inplace_vector implementation.
  |     
  |     libstdc++-v3/ChangeLog:
  | ... 73 lines of the commit log omitted.

Produces 1 regression:
  | 
  | regressions.sum:
  | Running libstdc++:libstdc++-dg/conformance.exp ...
  | FAIL: 23_containers/inplace_vector/debug/assign4_backtrace_neg.cc 
-std=gnu++26 (test for excess errors)

Used configuration :
 *CI config* tcwg_gnu_embed_check_gcc master-arm_eabi
 *configure and test flags:* --target arm-eabi 

We track this bug report under https://linaro.atlassian.net/browse/GNU-1812. 
Please let us know if you have a fix.

If you have any questions regarding this report, please ask on 
[email protected] mailing list.

-----------------8<--------------------------8<--------------------------8<--------------------------

The information below contains the details of the failures, and the ways to 
reproduce a debug environment:

You can find the failure logs in *.log.1.xz files in
 * 
https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-arm_eabi-build/1197/artifact/artifacts/00-sumfiles/
The full lists of regressions and improvements as well as configure and make 
commands are in
 * 
https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-arm_eabi-build/1197/artifact/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * 
https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-arm_eabi-build/1197/artifact/artifacts/sumfiles/xfails.xfail

Current build   : 
https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-arm_eabi-build/1197/artifact/artifacts
Reference build : 
https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-arm_eabi-build/1196/artifact/artifacts

Instruction to reproduce the build : 
https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/8a2e6590cc4a2fceb03ec9616d24173c0ea393f5/tcwg_gnu_embed_check_gcc/master-arm_eabi/reproduction_instructions.txt

Full commit : See in git+ssh://[email protected]/git/gcc.git

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