pint.ok --no-color lint --min-severity=bug rules
! stdout .
cmp stderr stderr.txt

-- stderr.txt --
level=info msg="1 problem(s) not visible because of --min-severity=bug flag"
-- rules/0001.yml --
groups:
- name: foo
  rules:
  - alert: foo
    expr: rate(errors[2m]) > 0
    annotations:
      summary: 'error rate: {{ $value }}'
