Dear contributor,

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

In gcc_check master-arm, after:
  | gcc patch https://patchwork.sourceware.org/patch/131125
  | Author: Tomasz Kamiński <tkaminsk@redhat.com>
  | Date:   Thu Mar 5 07:44:37 2026 +0100
  | 
  |     [PATCH v2] libstdc++: Introduce __format::_Ptr_sink for contiguous iterators.
  |     
  |     This patch replaces the _Iter_sink specialization for contiguous
  |     iterators of _CharT, with separate _Ptr_sink. This allow further
  |     reduce the number of instantiations as single _Ptr_sink<_CharT>
  | ... 32 lines of the commit log omitted.
  | ... applied on top of baseline commit:
  | 446835a07d5 i386: Make -masm={att,intel} xchg operand order consistent

Produces 3 regressions:
  | 
  | regressions.sum:
  | Running libstdc++:libstdc++-dg/conformance.exp ...
  | FAIL: std/format/functions/107871.cc -std=gnu++20 (test for excess errors)
  | FAIL: std/format/functions/format_to_n.cc -std=gnu++20 (test for excess errors)
  | UNRESOLVED: std/format/functions/format_to_n.cc -std=gnu++20 compilation failed to produce executable

Used configuration :
 *CI config* tcwg_gcc_check master-arm
 *configure and test flags:* none, autodetected on armv8l-unknown-linux-gnueabihf

If you have any questions regarding this report, please ask on linaro-toolchain@lists.linaro.org mailing list.

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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_gcc_check--master-arm-precommit/12551/artifact/artifacts/artifacts.precommit/00-sumfiles/
The full lists of regressions and improvements as well as configure and make commands are in
 * https://ci.linaro.org/job/tcwg_gcc_check--master-arm-precommit/12551/artifact/artifacts/artifacts.precommit/notify/
The list of [ignored] baseline and flaky failures are in
 * https://ci.linaro.org/job/tcwg_gcc_check--master-arm-precommit/12551/artifact/artifacts/artifacts.precommit/sumfiles/xfails.xfail

Current build   : https://ci.linaro.org/job/tcwg_gcc_check--master-arm-precommit/12551/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_gcc_check--master-arm-build/4844/artifact/artifacts

Warning: we do not enable maintainer-mode nor automatically update
generated files, which may lead to failures if the patch modifies the
master files.