Regressions on native/master at commit r16-1739 vs commit r16-1731 on Linux/x86_64

[Haochen Jiang]

Regressions on master at commit r16-1739 vs commit r16-1731 on Linux/x86_64
New failures:

New passes:
FAIL: std/time/format/empty_spec.cc  -std=gnu++20 execution test
FAIL: std/time/format/empty_spec.cc  -std=gnu++20 (test for excess errors)
FAIL: std/time/format/empty_spec.cc  -std=gnu++26 execution test
FAIL: std/time/format/empty_spec.cc  -std=gnu++26 (test for excess errors)