Latexmk: applying rule 'bibtex mydocument'...
For rule 'bibtex mydocument', running '&run_bibtex(  )' ...
This is BibTeX, Version 0.99d (TeX Live 2020)
The top-level auxiliary file: mydocument.aux
I found no \bibdata command---while reading file mydocument.aux
I found no \bibstyle command---while reading file mydocument.aux
(There were 2 error messages)
Collected error summary (may duplicate other messages):
  bibtex mydocument: Bibtex errors: See file 'mydocument.blg'
Latexmk: Use the -f option to force complete processing,
 unless error was exceeding maximum runs, or warnings treated as errors.
Latexmk: Errors, so I did not complete making targets