test_sandbox is broken

[ripatel-fd]

$ build/native/gcc/unit-test/test_sandbox
--log-path not specified; using autogenerated path
Log at "/tmp/fd-0.0.0_340925_ripatel_emfr-ossdev-firedancer9_2024_11_04_10_21_54_990005319_GMT+00"
NOTICE  11-04 10:21:54.991262 340925 f0   0    src/util/sandbox/test_sandbox.c(549): Test clear environment
NOTICE  11-04 10:21:54.991272 340925 f0   0    src/util/sandbox/test_sandbox.c(552): Test check file descriptors
ERR     11-04 10:21:54.991848 340925 f0   0    src/util/sandbox/fd_sandbox.c(210): unexpected file descriptor 4 open pipe:[73523702]
ERR     11-04 10:21:54.994590 340925 f0   0    src/util/sandbox/test_sandbox.c(88): FAIL: WEXITSTATUS( wstatus )==0
ERR     11-04 10:21:54.995547 340925 f0   0    src/util/sandbox/test_sandbox.c(121): FAIL: WEXITSTATUS( wstatus )==0

$ echo $?
1