Checking /nix/store/avsb7lv8xhrzjhzf0w4jxrlnl9nl0ipg-fleet-alert-rules.yaml
  SUCCESS: 7 rules found

Checking /nix/store/5lrlzh41gq1fsyyl11fyp51dhwcsh1pc-fleet-alert-rules-malformed.yaml
  FAILED:
/nix/store/5lrlzh41gq1fsyyl11fyp51dhwcsh1pc-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