Error(s) in re-building vignettes:
--- re-building ‘evergreenreviewgraphs.Rmd’ using rmarkdown
Warning: `as_data_frame()` is deprecated as of tibble 2.0.0.
Please use `as_tibble()` instead.
The signature and semantics have changed, see `?as_tibble`.
This warning is displayed once every 8 hours.
Call `lifecycle::last_warnings()` to see where this warning was generated.
Warning: `data_frame()` is deprecated as of tibble 1.1.0.
Please use `tibble()` instead.
This warning is displayed once every 8 hours.
Call `lifecycle::last_warnings()` to see where this warning was generated.

Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

`summarise()` ungrouping output (override with `.groups` argument)
--- finished re-building ‘evergreenreviewgraphs.Rmd’

--- re-building ‘introducing-europepmc.Rmd’ using rmarkdown
Warning: `data_frame()` is deprecated as of tibble 1.1.0.
Please use `tibble()` instead.
This warning is displayed once every 8 hours.
Call `lifecycle::last_warnings()` to see where this warning was generated.
Warning: `as_data_frame()` is deprecated as of tibble 2.0.0.
Please use `as_tibble()` instead.
The signature and semantics have changed, see `?as_tibble`.
This warning is displayed once every 8 hours.
Call `lifecycle::last_warnings()` to see where this warning was generated.
187403 records found, returning 100
184663 records found, returning 100
1590 records found, returning 100
1590 records found, returning 10
1 records found, returning 1
1 records found, returning 1
1 records found, returning 1
1 records found, returning 1
10 records found, returning 10
575 records found, returning 575
Quitting from lines 111-113 (introducing-europepmc.Rmd) 
Error: processing vignette 'introducing-europepmc.Rmd' failed with diagnostics:
!self$finished is not TRUE
--- failed re-building ‘introducing-europepmc.Rmd’

SUMMARY: processing the following file failed:
  ‘introducing-europepmc.Rmd’

Error: Vignette re-building failed.
Execution halted