--- re-building ‘optimizeR_package.Rmd’ using rmarkdown

processing vignette 'optimizeR_package.Rmd' failed with diagnostics:

Vignette re-building failed.

Build process failed

Process completed with exit code 1.

Input 'save-always' has been deprecated with message: save-always does not work as intended and will be removed in a future release. A separate `actions/cache/restore` step should be used instead. See https://github.com/actions/cache/tree/main/save#always-save-cache for more details.

No files were found with the provided path: /Users/runner/work/optimizeR/optimizeR/check. No artifacts will be uploaded.

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