Different tests failing on local dev box and GitLab runner

Figured out why my build system fails tests when trying to build tiny-cloud APKs...

===> tests/init-early.test:create_default_user
Result:     failed: atf-check failed; see the output of the test for details
Start time: 2023-05-21T21:30:53.257302Z
End time:   2023-05-21T21:30:53.274744Z
Duration:   0.017s

Metadata:
    allowed_architectures is empty
    allowed_platforms is empty
    description is empty
    has_cleanup = false
    is_exclusive = false
    required_configs is empty
    required_disk_space = 0
    required_files is empty
    required_memory = 0
    required_programs is empty
    required_user is empty
    timeout = 300

Standard output:
Executing command [ sh -c . /home/tomalok/git/alpinelinux/aports/main/tiny-cloud/src/tiny-cloud-3.0.0_rc6/tests/../lib/tin
y-cloud/init; init__create_default_user ]

Standard error:
Fail: stderr not empty
--- /dev/null
+++ /tmp/kyua.IfKlNb/42/work/check.lJHHaG/stderr
@@ -0,0 +1 @@
+: already exists
Files left in work directory after failure: var
===> Failed tests
tests/init-early.test:create_default_user  ->  failed: atf-check failed; see the output of the test for details  [0.017s]

If the default user already exists, already exists is on stderr. I'm not entirely how to get atf-check to pass if stderr is empty OR it contains already exists.