Error(s) in re-building vignettes:
--- re-building ‘README.Rmd’ using rmarkdown
calculated result for lambda = 0.04, gamma = 0.3
calculated result for lambda = 0.04, gamma = 0.35
calculated result for lambda = 0.04, gamma = 0.4
calculated result for lambda = 0.04, gamma = 0.45
calculated result for lambda = 0.04, gamma = 0.5
calculated result for lambda = 0.04, gamma = 0.55
calculated result for lambda = 0.04, gamma = 0.6
calculated result for lambda = 0.04, gamma = 0.65
calculated result for lambda = 0.04, gamma = 0.7
calculated result for lambda = 0.045, gamma = 0.3
calculated result for lambda = 0.045, gamma = 0.35
calculated result for lambda = 0.045, gamma = 0.4
calculated result for lambda = 0.045, gamma = 0.45
calculated result for lambda = 0.045, gamma = 0.5
calculated result for lambda = 0.045, gamma = 0.55
calculated result for lambda = 0.045, gamma = 0.6
calculated result for lambda = 0.045, gamma = 0.65
calculated result for lambda = 0.045, gamma = 0.7
calculated result for lambda = 0.05, gamma = 0.3
calculated result for lambda = 0.05, gamma = 0.35
calculated result for lambda = 0.05, gamma = 0.4
calculated result for lambda = 0.05, gamma = 0.45
calculated result for lambda = 0.05, gamma = 0.5
calculated result for lambda = 0.05, gamma = 0.55
calculated result for lambda = 0.05, gamma = 0.6
calculated result for lambda = 0.05, gamma = 0.65
calculated result for lambda = 0.05, gamma = 0.7
calculated result for lambda = 0.055, gamma = 0.3
calculated result for lambda = 0.055, gamma = 0.35
calculated result for lambda = 0.055, gamma = 0.4
calculated result for lambda = 0.055, gamma = 0.45
calculated result for lambda = 0.055, gamma = 0.5
calculated result for lambda = 0.055, gamma = 0.55
calculated result for lambda = 0.055, gamma = 0.6
calculated result for lambda = 0.055, gamma = 0.65
calculated result for lambda = 0.055, gamma = 0.7
calculated result for lambda = 0.06, gamma = 0.3
calculated result for lambda = 0.06, gamma = 0.35
calculated result for lambda = 0.06, gamma = 0.4
calculated result for lambda = 0.06, gamma = 0.45
calculated result for lambda = 0.06, gamma = 0.5
calculated result for lambda = 0.06, gamma = 0.55
calculated result for lambda = 0.06, gamma = 0.6
calculated result for lambda = 0.06, gamma = 0.65
calculated result for lambda = 0.06, gamma = 0.7
calculated result for lambda = 0.065, gamma = 0.3
calculated result for lambda = 0.065, gamma = 0.35
calculated result for lambda = 0.065, gamma = 0.4
calculated result for lambda = 0.065, gamma = 0.45
calculated result for lambda = 0.065, gamma = 0.5
calculated result for lambda = 0.065, gamma = 0.55
calculated result for lambda = 0.065, gamma = 0.6
calculated result for lambda = 0.065, gamma = 0.65
calculated result for lambda = 0.065, gamma = 0.7
calculated result for lambda = 0.07, gamma = 0.3
calculated result for lambda = 0.07, gamma = 0.35
calculated result for lambda = 0.07, gamma = 0.4
calculated result for lambda = 0.07, gamma = 0.45
calculated result for lambda = 0.07, gamma = 0.5
calculated result for lambda = 0.07, gamma = 0.55
calculated result for lambda = 0.07, gamma = 0.6
calculated result for lambda = 0.07, gamma = 0.65
calculated result for lambda = 0.07, gamma = 0.7
calculated result for lambda = 0.075, gamma = 0.3
calculated result for lambda = 0.075, gamma = 0.35
calculated result for lambda = 0.075, gamma = 0.4
calculated result for lambda = 0.075, gamma = 0.45
calculated result for lambda = 0.075, gamma = 0.5
calculated result for lambda = 0.075, gamma = 0.55
calculated result for lambda = 0.075, gamma = 0.6
calculated result for lambda = 0.075, gamma = 0.65
calculated result for lambda = 0.075, gamma = 0.7
calculated result for lambda = 0.08, gamma = 0.3
calculated result for lambda = 0.08, gamma = 0.35
calculated result for lambda = 0.08, gamma = 0.4
calculated result for lambda = 0.08, gamma = 0.45
calculated result for lambda = 0.08, gamma = 0.5
calculated result for lambda = 0.08, gamma = 0.55
calculated result for lambda = 0.08, gamma = 0.6
calculated result for lambda = 0.08, gamma = 0.65
calculated result for lambda = 0.08, gamma = 0.7
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 'README.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘README.Rmd’

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

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

SUMMARY: processing the following files failed:
  ‘README.Rmd’ ‘calculate_pi_ratings.Rmd’ ‘optimize_pi_ratings.Rmd’

Error: Vignette re-building failed.
Execution halted