Error(s) in re-building vignettes:
--- re-building 'datatable-benchmarking.Rmd' using knitr
--- finished re-building 'datatable-benchmarking.Rmd'

--- re-building 'datatable-faq.Rmd' using knitr
--- finished re-building 'datatable-faq.Rmd'

--- re-building 'datatable-importing.Rmd' using knitr
--- finished re-building 'datatable-importing.Rmd'

--- re-building 'datatable-intro.Rmd' using knitr
--- finished re-building 'datatable-intro.Rmd'

--- re-building 'datatable-joins.Rmd' using knitr

Quitting from datatable-joins.Rmd:667-673 [unnamed-chunk-42]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
attempt access index 5/5 in VECTOR_ELT
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


Quitting from datatable-joins.Rmd:667-673 [unnamed-chunk-42]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
`[.data.table`(copy(Products), ProductPriceHistory, on = .(id = product_id), ,     j = `:=`(price = tail(i.price, 1), last_updated = tail(i.date, ,         1)), by = .EACHI)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'datatable-joins.Rmd' failed with diagnostics:
attempt access index 5/5 in VECTOR_ELT
--- failed re-building 'datatable-joins.Rmd'

--- re-building 'datatable-keys-fast-subset.Rmd' using knitr
--- finished re-building 'datatable-keys-fast-subset.Rmd'

--- re-building 'datatable-programming.Rmd' using knitr
--- finished re-building 'datatable-programming.Rmd'

--- re-building 'datatable-reference-semantics.Rmd' using knitr
--- finished re-building 'datatable-reference-semantics.Rmd'

--- re-building 'datatable-reshape.Rmd' using knitr
--- finished re-building 'datatable-reshape.Rmd'

--- re-building 'datatable-sd-usage.Rmd' using knitr

Quitting from datatable-sd-usage.Rmd:199-206 [conditional_join]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
attempt access index 30/30 in VECTOR_ELT
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


Quitting from datatable-sd-usage.Rmd:199-206 [conditional_join]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
`[.data.table`(Pitching, G > 5, `:=`(rank_in_team, frank(ERA)), ,     by = .(teamID, yearID))
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'datatable-sd-usage.Rmd' failed with diagnostics:
attempt access index 30/30 in VECTOR_ELT
--- failed re-building 'datatable-sd-usage.Rmd'

--- re-building 'datatable-secondary-indices-and-auto-indexing.Rmd' using knitr
--- finished re-building 'datatable-secondary-indices-and-auto-indexing.Rmd'

SUMMARY: processing the following files failed:
  'datatable-joins.Rmd' 'datatable-sd-usage.Rmd'

Error: Vignette re-building failed.
Execution halted