Error(s) in re-building vignettes:
  ...
--- re-building ‘dataone-federation.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
--- finished re-building ‘dataone-federation.Rmd’

--- re-building ‘dataone-overview.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
Quitting from lines 26-36 (dataone-overview.Rmd) 
Error: processing vignette 'dataone-overview.Rmd' failed with diagnostics:
Timeout was reached: Operation timed out after 10002 milliseconds with 0 out of 0 bytes received
--- failed re-building ‘dataone-overview.Rmd’

--- re-building ‘download-data.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
--- finished re-building ‘download-data.Rmd’

--- re-building ‘known-issues.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
--- finished re-building ‘known-issues.Rmd’

--- re-building ‘searching-dataone.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
--- finished re-building ‘searching-dataone.Rmd’

--- re-building ‘update-package.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
--- finished re-building ‘update-package.Rmd’

--- re-building ‘upload-data.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
--- finished re-building ‘upload-data.Rmd’

SUMMARY: processing the following file failed:
  ‘dataone-overview.Rmd’

Error: Vignette re-building failed.
Execution halted