Checking /nix/store/la8q54kwsv58ybrkiaig7qqian1pxb2d-fleet-alert-rules.yaml
  SUCCESS: 7 rules found

Checking /nix/store/qfjx7qshl5sy8m4vi8899nwlyqrywba4-fleet-alert-rules-malformed.yaml
  FAILED:
/nix/store/qfjx7qshl5sy8m4vi8899nwlyqrywba4-fleet-alert-rules-malformed.yaml: 1:758: group "fleet-alert", rule 2, "HostOOMKill": could not parse expression: 1:39: parse error: unclosed left parenthesis
mutant malformedExpression rejected