pint.error lint rules
! stdout .
cmp stderr stderr.txt

-- stderr.txt --
level=error msg="Failed to parse file content" [31merror=[0m[31m"yaml: line 6: did not find expected '-' indicator"[0m [36mpath=[0mrules/1.yaml
rules/1.yaml:6: did not find expected '-' indicator (pint/parse)


level=info msg="Problems found" [36mFatal=[0m1
level=fatal msg="Fatal error" [31merror=[0m[31m"problems found"[0m
-- rules/1.yaml --
- alert: Good
  expr: up == 0
  for: 2m
  labels:
   component: foo

alert: Bad
  expr: up == 0
  for: 2m
  labels:
   component: foo
