ineffectual assignment to err (ineffassign)

ST1016: methods on the same type should have the same receiver name (seen 1x "p", 1x "parser") (stylecheck)

issues found

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, golangci/[email protected]. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

The `save-state` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/