Error(s) in re-building vignettes:
--- re-building ‘a_start.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 'a_start.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘a_start.Rmd’

--- re-building ‘b_dev.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 'b_dev.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘b_dev.Rmd’

--- re-building ‘c_deploy.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 'c_deploy.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘c_deploy.Rmd’

--- re-building ‘d_js.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 'd_js.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘d_js.Rmd’

--- re-building ‘e_config.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 'e_config.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘e_config.Rmd’

--- re-building ‘z_golem_cheatsheet.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 'z_golem_cheatsheet.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘z_golem_cheatsheet.Rmd’

SUMMARY: processing the following files failed:
  ‘a_start.Rmd’ ‘b_dev.Rmd’ ‘c_deploy.Rmd’ ‘d_js.Rmd’ ‘e_config.Rmd’
  ‘z_golem_cheatsheet.Rmd’

Error: Vignette re-building failed.
Execution halted