[tex-live] bug report of bibtex

[Karl Berry]

    You can directly run latexmk in the source folder

Like Akira, the standard sequence worked for me:

pdflatex --output-dir=output source.tex
bibtex output/source
pdflatex --output-dir=output source.tex
pdflatex --output-dir=output source.tex

bibtex found ../Library.bib ok.

I am unable to easily discern what latexmk is running.
I can only suggest reporting this to the latexmk maintainer. --best, karl.