Error(s) in re-building vignettes:
--- re-building ‘dataone-federation.Rmd’ using rmarkdown
dyld: lazy symbol binding failed: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

Error: processing vignette 'dataone-federation.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘dataone-federation.Rmd’

--- re-building ‘dataone-overview.Rmd’ using rmarkdown
dyld: lazy symbol binding failed: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

Error: processing vignette 'dataone-overview.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘dataone-overview.Rmd’

--- re-building ‘download-data.Rmd’ using rmarkdown
dyld: lazy symbol binding failed: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

Error: processing vignette 'download-data.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘download-data.Rmd’

--- re-building ‘known-issues.Rmd’ using rmarkdown
dyld: lazy symbol binding failed: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

Error: processing vignette 'known-issues.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘known-issues.Rmd’

--- re-building ‘searching-dataone.Rmd’ using rmarkdown
dyld: lazy symbol binding failed: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

Error: processing vignette 'searching-dataone.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘searching-dataone.Rmd’

--- re-building ‘update-package.Rmd’ using rmarkdown
dyld: lazy symbol binding failed: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

Error: processing vignette 'update-package.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘update-package.Rmd’

--- re-building ‘upload-data.Rmd’ using rmarkdown
dyld: lazy symbol binding failed: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

Error: processing vignette 'upload-data.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘upload-data.Rmd’

SUMMARY: processing the following files failed:
  ‘dataone-federation.Rmd’ ‘dataone-overview.Rmd’ ‘download-data.Rmd’
  ‘known-issues.Rmd’ ‘searching-dataone.Rmd’ ‘update-package.Rmd’
  ‘upload-data.Rmd’

Error: Vignette re-building failed.
Execution halted